View TDA8594_4931307.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Rev. 02 -- 11 December 2007 Product data sheet
1. General description
The TDA8594 is a complementary quad Bridge Tied Load (BTL) audio power amplifier made in BCDMOS technology. It contains four independent amplifiers in BTL configuration. Through the I2C-bus, diagnosis of temperature warning and clipping level is fully programmable and the information available via two diagnostic pins is selectable. The status of each amplifier (output offset, load or no load, short-circuit or speaker incorrectly connected) can be read separately.
2. Features
2.1 General
I I I I I I I I I I I I Operates in legacy mode (non I2C-bus) and I2C-bus mode (3.3 V and 5 V compliant) Three hardware-programmable I2C-bus addresses Drives 4 or 2 loads Speaker fault detection Independent short-circuit protection per channel Loss of ground and open VP safe (with 200 m series impedance and a supply decoupling capacitor of 2200 F maximum) All outputs short-circuit proof to ground, supply voltage and across the load All pins short-circuit proof to ground Temperature-controlled gain reduction to prevent audio holes at high junction temperatures Low battery voltage detection Offset detection This part has been qualified in accordance with AEC-Q100
2.2 I2C-bus mode
I DC load detection: open-circuit, short-circuit and load present I AC load (tweeter) detection I During start-up, can detect which load is connected so the appropriate gain can be selected without audio pop I Independently selectable soft mute of front channels (channel 1 and channel 3) and rear channels (channel 2 and channel 4) I Programmable gain (26 dB and 16 dB) of front channels (channel 1 and channel 3) and rear channels (channel 2 and channel 4)
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
I Fully programmable diagnostic levels can be set: N Programmable clip detection: 2 %, 5 % or 10 % N Programmable thermal pre-warning I Selectable information on the DIAG and STB pins: N The STB pin can be programmed/multiplexed with second clip detection N Clip information of each channel can be directed separately to the DIAG pin or the STB pin N Independent enabling of thermal, clip or load fault detection (short across or to VP or to ground) on DIAG pin
3. Quick reference data
Table 1. Symbol VP Iq Po Quick reference data Parameter supply voltage quiescent current output power Conditions RL = 4 no load VP = 14.4 V RL = 4 ; THD = 0.5 % RL = 4 ; THD = 10 % RL = 4 ; maximum power; Vi = 2 V (RMS) square wave RL = 2 ; maximum power; Vi = 2 V (RMS) square wave THD Vn(o) total harmonic distortion output noise voltage RL = 4 ; f = 1 kHz; Po = 1 W to 12 W filter 20 Hz to 22 kHz; RS = 1 k normal mode line driver mode 45 22 65 29 V V 19 26 42 22 28 44 W W W Min 8 Typ 14.4 270 Max 18 400 Unit V mA
70
75
-
W
-
0.01
0.1
%
4. Ordering information
Table 2. Ordering information Package Name TDA8594J TDA8594SD DBS27P RDBS27P Description plastic DIL-bent-SIL (special bent) power package; 27 leads (lead length 6.8 mm) plastic rectangular-DIL-bent-SIL (reverse bent) power package; 27 leads (row spacing 2.54 mm) Version SOT827-1 SOT878-1 Type number
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
2 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
5. Block diagram
ADSEL SDA 1 SCL 23 VP1 21 VP2 7
26
STB
2
STANDBY/ FAST MUTE
I2C-BUS INTERFACE
5 CLIP DETECT/DIAGNOSTIC
DIAG
IN1
12
MUTE
26 dB/ 16 dB
PROTECTION/ DIAGNOSTIC
10 8
OUT1+ OUT1-
IN3
16
MUTE
26 dB/ 16 dB
PROTECTION/ DIAGNOSTIC
18 20
OUT3+ OUT3-
IN2
13
MUTE
26 dB/ 16 dB
PROTECTION/ DIAGNOSTIC
6 4
OUT2+ OUT2-
IN4
15 VP
MUTE
26 dB/ 16 dB
PROTECTION/ DIAGNOSTIC
22 24
OUT4+ OUT4-
27
TAB
TDA8594
11 SVR
14 SGND
17 ACGND
9 PGND1
3 PGND2
19 PGND3
25 PGND4
001aad119
Fig 1. Block diagram
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
3 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
6. Pinning information
6.1 Pinning
ADSEL STB PGND2 OUT2- DIAG OUT2+ VP2 OUT1- PGND1
1 2 3 4 5 6 7 8 9
OUT1+ 10 SVR 11 IN1 12 IN2 13 SGND 14 IN4 15 IN3 16 ACGND 17 OUT3+ 18 PGND3 19 OUT3- 20 VP1 21 OUT4+ 22 SCL 23 OUT4- 24 PGND4 25 SDA 26 TAB 27
001aad120
TDA8594
Fig 2. Pin configuration
6.2 Pin description
Table 3. Symbol ADSEL STB PGND2 OUT2- DIAG OUT2+ VP2
TDA8594_2
Pin description Pin 1 2 3 4 5 6 7 Description I2C-bus address select input standby (I2C-bus mode) or mode pin (legacy mode); programmable second clip indicator power ground channel 2 negative channel 2 output diagnostic/clip detection output positive channel 2 output supply voltage 2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
4 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Pin description ...continued Pin 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Description negative channel 1 output power ground channel 1 positive channel 1 output half supply filter capacitor channel 1 input channel 2 input signal ground channel 4 input channel 3 input AC ground input positive channel 3 output power ground channel 3 negative channel 3 output supply voltage 1 positive channel 4 output I2C-bus clock input negative channel 4 output power ground channel 4 I2C-bus data input/output heatsink connection, must be connected to ground
Table 3. Symbol OUT1- PGND1 OUT1+ SVR IN1 IN2 SGND IN4 IN3 ACGND OUT3+ PGND3 OUT3- VP1 OUT4+ SCL OUT4- PGND4 SDA TAB
To keep the output pins on the front side, special reverse bending is applied.
7. Functional description
The TDA8594 is a complementary quad BTL audio power amplifier made in BCDMOS technology. It contains four independent amplifiers in BTL configuration (see Figure 1). Through the I2C-bus, the diagnostic functions of temperature level and clip level are fully programmable and the information to be shown on the two diagnostic pins can be selected. The status of each amplifier (output offset, load or no load, short-circuit or speaker incorrectly connected) can be read separately. The TDA8594 is protected against overvoltage, short-circuit, over-temperature, open ground and open VP connections. Three different I2C-bus addresses are selected with an external resistor connected to the ADSEL pin. If the ADSEL pin is short-circuit to ground, the TDA8594 operates in legacy mode. In this mode, no I2C-bus is needed and the function of the STB pin will change from two-level (Standby mode and On mode) to a three-level pin (Standby mode, On mode and mute).
7.1 Input stage
The input stage is a high-impedance pseudo-differential input stage. The negative inputs of the four channels are combined on the ACGND pin. For the best performance on supply voltage ripple rejection and pop noise, the capacitor connected to the ACGND pin must be four times the value of the input capacitor (or as close to the value as possible).
TDA8594_2 (c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
5 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
7.2 Output stage
The output stage of each amplifier channel consists of two PMOS power transistors and two NMOS transistors in a BTL configuration. The process used is the BCDMOS process with an isolated substrate, Silicon On Insulator (SOI) process, which has almost no parasitic components and therefore prevents latch-up.
7.3 Distortion (clip) detection
If the output of the amplifier starts clipping to the supply voltage or to ground, the output will become distorted. If the distortion per channel exceeds a selectable threshold (2 %, 5 % or 10 %), one of the two diagnostic pins (DIAG pin or STB pin) will be activated. To be able to detect if, for instance, the front channels (channel 1 and channel 3) or rear channels (channel 2 and channel 4) are clipping, the clip information can be directed per channel to the DIAG pin or the STB pin. It is possible to have only the clip information on the diagnostic pins by disabling the temperature and load information on the DIAG pin. In this mode the temperature and load protection are still functional but can only be read via the I2C-bus.
7.4 Output protection and short-circuit operation
When a short-circuit to ground, VP or across the load occurs on one or more outputs of an amplifier, only the amplifier with the short-circuit is switched off. The channel that has a short-circuit and the type of short-circuit can be read-back via the I2C-bus. If the DIAG pin is enabled for load fault information (IB2[D4] = 0) the DIAG pin will be pulled LOW. After 16 ms the amplifier will be switched on again and, if the short-circuit conditions still occur, the amplifier will be switched off. The 16 ms cycle will reduce the dissipation. To prevent audible distortion, the amplifier channel with the short-circuit can be disabled via the I2C-bus.
7.5 SOAR protection
The output transistors are protected by Safe Operating ARea (SOAR) protection. The TDA8594 has a two-stage SOAR protection:
* If the differential output voltage across the load is less than 1 V, and the current
through the load is more than 4 A, the amplifier channel will be switched off for 16 ms. To prevent incorrect switch-off with an inductive load or very high input signals, the condition (Vo < 1 V and IL > 4 A) must exist for more than 300 s.
* If the differential output voltage across the load is more than 1 V, and the current
through the load is more than 8 A, the amplifier channel will be switched off for 16 ms.
7.6 Speaker protection
To prevent damage of the speaker when one side of the speaker is connected to ground, a missing current protection is implemented. When in one channel the current in the high side power is not equal to the current in the low side power, a fault condition is assumed and the channel will be switched off. The speaker protection will be activated under the following conditions:
* Vo < 1.75 V and Imissing(det) > 1 A for 80 s * Vo > 1.75 V and Imissing(det) > 3 A for 80 s
TDA8594_2 (c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
6 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
7.7 Standby and mute operation
The function of the STB pin is different in legacy mode and I2C-bus mode.
7.7.1 Legacy mode (pin ADSEL connected to ground)
The function of the STB pin will change from standby/operating to standby/mute/operating and the amplifier will start directly when the STB is put into mute or operating mode. Mute operating is controlled via an internal timer (20 ms) to minimize mute-on pops. When the STB pin is switched directly from operating to standby, first the fast mute will be activated (switching to mute within 100 s) and then the amplifier will shut-down.
7.7.2 I2C-bus mode
When the STB pin is LOW, the total quiescent current is low, and the I2C-bus lines will not be loaded. When the STB pin is switched HIGH, the TDA8594 is put in operating condition and will perform a Power-On Reset (POR), which results in a LOW level DIAG pin. The TDA8594 will start up when instruction bit IB1[D0] is set. Bit D0 will also reset the `power-on reset occurred' bit (DB2[D7]) and releases the DIAG pin. The soft mute and fast mute can be activated via the I2C-bus. The soft mute can be activated independently for the front channels (channel 1 and channel 3) and rear channels (channel 2 and channel 4), and mutes the audio in 20 ms. The fast mute activates the mute for all channels at the same time and mutes the audio in 0.1 ms. Releasing the mute after a fast mute will be by a soft un-mute of approximately 20 ms. When the STB pin is switched to Standby mode and the amplifier has started, first the fast mute will be activated and then the amplifier will shut-down. For instance, during an engine start, it is possible to fully mute the amplifiers within 100 s by switching the STB pin to zero.
7.8 Start-up and shut-down sequence
To prevent the amplifier producing switch-on or switch-off pop noise, the capacitor on the SVR pin is used for smooth start-up and shut-down. Increasing the value of the SVR capacitor will mean a longer start-up and shut-down time. The amplifier output voltage is charged to half the supply voltage minus 1.4 V in mute condition, independent of the I2C-bus mute settings in I2C-bus mode or STB voltage in legacy mode. The last 1.4 V, where the output will reach half the supply voltage, is used to release the mute if the I2C-bus bits were set to mute off (IB2[D2:D0] = 000; VSTB > 6.5 V in legacy mode), or will stay in mute when the bits were set to mute (2.6 V < VSTB < 4.5 V in legacy mode). When the amplifier is switched off by pulling the STB pin LOW, the amplifier is first muted (fast mute) and then the capacitor on the SVR pin is discharged. With an SVR capacitor of 22 F, the standby current has reached 1 second after the STB pin is switched to zero (see Figure 3, Figure 4, Figure 5 and Figure 6). The start-up and shut-down pop can be further decreased by activating the low pop mode. When the low pop mode is enabled (IB2[D3] = 0), the output voltage rise from ground level during start-up will be slower (see Figure 5). This will decrease the pop even more but will increase the start-up time.
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
7 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
VP
DIAG
DB2 bit D7 POR
IB1 bit D0 start enable twake
STB
SVR
tamp_on
toff fast mute
amplifier output
td(mute_off)
td(soft_mute)
td(fast_mute)
001aad168
Fig 3. Start-up and shut-down timing in I2C-bus mode
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
8 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
VP
DIAG
DB2 bit D7 POR
IB1 bit D0 start enable twake
STB
SVR tload tamp_on toff fast mute amplifier output
td(mute_off)
td(soft_mute)
td(fast_mute)
001aad169
Fig 4. Start-up and shut-down timing with DC load active in I2C-bus mode
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
9 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
VP
DIAG
DB2 bit D7 POR
IB1 bit D0 start enable twake
STB
SVR tload tamp_on toff fast mute amplifier output
td(mute_off)
td(soft_mute)
td(fast_mute)
001aad170
Fig 5. Start-up and shut-down timing with low audible pop and DC load activated
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
10 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
VP
DIAG
on STB mute standby
SVR
tamp_on soft mute amplifier output
toff fast mute
td(mute_off)
td(soft_mute)
td(mute_on)
td(fast_mute)
001aad171
Fig 6. Start-up and shut-down timing in legacy mode
7.9 Power-on reset and supply voltage spikes
If in I2C-bus mode the supply voltage drops below 5 V (see Figure 9), the content of the I2C-bus latches cannot be guaranteed and the power-on reset will be activated. All latches are reset, the amplifier is switched off and the DIAG pin is pulled LOW to indicate that a power-on reset has occurred (bit DB2[D7]). When IB1[D0] is set, the power-on flag is reset, the DIAG pin will be released and the amplifier will start up. In legacy mode a supply voltage drop below 5 V will switch off the amplifier and the DIAG pin will not be pulled LOW.
7.10 Engine start and low voltage operation
The DC output voltage of the amplifier (VO) is set to half of the supply voltage and is related to the voltage on the SVR pin (see Figure 7; VO = VSVR - 1.4 V). A capacitor is connected on the SVR pin to suppress the ripple on the power supply. If the supply voltage drops, for instance, during an engine start, the output follows slowly due to the SVR capacitor. The headroom voltage is the voltage needed for good operation of the amplifier and is defined as Vhr = VP - VO (see Figure 7). If the headroom voltage becomes lower than the headroom protection threshold of 1.6 V, the headroom protection is activated to prevent pop noise at the output. This protection first activates the fast mute and then discharges the capacitors on the SVR and ACGND pins to generate more headroom for the amplifier (see Figure 8).
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
11 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
When the SVR capacitor has discharged, the amplifier starts up again if the VP voltage is above the low VP mute threshold, typically 7.5 V. Below the low VP mute threshold, the outputs of the amplifier remain low. In I2C-bus mode, a supply voltage drop below VP(reset), typically 5 V, results in setting bit DB2[D7] and not starting of the amplifiers but waiting for an I2C-bus command to start. The amplifier prevents audio pops during engine start. To prevent pops on the output caused by the application during an engine start (for instance tuner regulator out of regulation), the STB pin can be made zero when an engine start is detected. The STB pin activates the fast mute and disturbances at the amplifier inputs are suppressed.
V (V)
14
VP
VSVR 8.4 7 VO (2) headroom protection threshold (3) Vhr (1)
1.6 V
t (s)
001aad172
(1) Headroom voltage Vhr = VP - VO. (2) Steady state output voltage VO = VSVR - 1.4 V. (3) Headroom protection threshold = VO + 1.6 V.
Fig 7. Low headroom protection
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
12 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
VO (V) 14.4
legacy and I2C-bus mode VP output voltage
8.8 8.6 7.2
(1)
Vhr
(2) (3)
VSVR 3.5
output voltage
(3)
t(start-Vo(off)) t(start-SVRoff)
t (s)
001aad173
(1) Headroom protection activated: a) Fast mute b) Discharge of SVR. (2) Low VP mute activated. (3) Low VP mute released.
Fig 8. Low VP behavior; legacy and I2C-bus modes
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
13 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
VO (V) 14.4
I2C-bus mode only VP
8.8 8.6
(1)
7.2
(2)
5.0 3.5 VSVR output voltage 0 POR IB1 bit D0
DIAG
t (s)
001aad185
(1) Low VP mute activated. (2) VPOR: VP level at which Power-On Reset (POR) is activated.
Fig 9. Low VP behavior; I2C-bus mode only
7.11 Overvoltage and load dump protection
When the battery voltage VP is higher than 22 V, the amplifier stage will be switched to high-impedance. The TDA8594 is protected against load dump voltage with supply voltage up to 50 V.
7.12 Thermal pre-warning and thermal protection
If the average junction temperature reaches a level that is adjustable via the I2C-bus, selected with IB3[D4], the pre-warning will be activated resulting in a LOW level on pin DIAG (if selected) and can be read out via the I2C-bus. The default setting for the thermal pre-warning is IB3[D4] = 0 setting the warning level at 145 C. In legacy mode the thermal pre-warning is set at 145 C. If the temperature increases further, the temperature controlled gain reduction will be activated for all four channels to reduce the output power (see Figure 10). If this does not reduce the average junction temperature, all four channels will be switched off at the absolute maximum temperature Toff, typical 175 C.
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
14 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
30 Gv (dB) 20
001aad174
10
0 145
155
165 Tj (C)
175
Fig 10. Temperature controlled amplifier gain
7.13 Diagnostics
Diagnostic information can be read via the I2C-bus, and can also be available on the DIAG pin or on the STB pin. The DIAG pin has both fixed information (power-on reset occurred, low battery and high battery) and, via the I2C-bus, selectable information (temperature, load fault and clip). This information will be seen at the DIAG pin as a logic OR. In case of a failure, the DIAG pin remains LOW and the failure information can be read from the microprocessor via the I2C-bus (the DIAG pin can be used as a microprocessor interrupt to minimize I2C-bus traffic). When the failure is removed, the DIAG pin will be released. To have full control over the clipping information, the STB pin can be programmed as a second clip detection pin. The clip detection level can be selected for all channels at once. It is possible to select whether the clip information is available on the DIAG pin or on the STB pin for each channel separately. It is, for instance, possible to distinguish between clipping of the front and the rear channels. Diagnostic information selection possibilities are shown in Table 4.
Table 4. Diagnostic information availability Legacy mode STB pin no DIAG pin no DIAG pin POR after power-on reset, DIAG pin will remain LOW until amplifier has been started yes can be enabled per channel can be enabled can be enabled can be enabled
Diagnostic information I2C-bus mode
Low battery Clip detection Temperature pre-warning Short Speaker protection (missing current)
TDA8594_2
no can be enabled per channel no no no
yes yes, fixed level for all channels on 2 % yes, pre-warning level is 145 C yes yes
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
15 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Diagnostic information availability ...continued Legacy mode STB pin no no no DIAG pin no no yes DIAG pin
Table 4.
Diagnostic information I2C-bus mode Offset detection Load detection Overvoltage no no yes
7.14 Offset detection
The offset detection can be performed with no input signal (for instance when the digital signal processor is in mute after a start-up) or with an input signal. In I2C-bus mode, if an I2C-bus read of the output offset is performed, the I2C-bus latches DBx[D2] will be set. When the amplifier BTL output voltage is within a window with a threshold of 1.75 V typical, the latches DBx[D2] are reset and setting is disabled. If, for instance, after 1 second an I2C-bus read is performed again and the offset bits are still set, the output has not crossed the offset threshold during the last 1 second (see Figure 11). This can mean the applied frequency is below 1 Hz (I2C-bus read interval = 1 s) or an output offset of more than 1.75 V is present.
I2C-bus mode only
VO = VOUT+ - VOUT-
offset threshold reset: setting disabled
t
t = 1 s: read = no offset DB1 bit D2 reset
VO = VOUT+ - VOUT-
offset threshold read = set bit t = 1 s: read = offset DB1 bit D2 set
t
001aad175
Fig 11. Offset detection
7.15 DC load detection
When the DC load detection is enabled with IB1[D1], a DC offset is slowly applied at the output of the amplifiers during the start-up cycle and the load currents are measured. Different load levels will be detected to differentiate between normal load, line driver load or open load.
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
16 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
LOAD DETECTION LEVEL
NORMAL 20
LINE DRIVER MODE 100 800
OPEN-CIRCUIT
5 k
001aad176
Fig 12. DC load detection levels
If the amplifier is used as line driver and the external booster has an input impedance of more than 100 and less than 800 (DC-coupled), the DC load bits will contain DBx[D5:D4] = 10, independent of the gain setting (see Table 5).
Table 5. DBx[D5] 0 1 1 0 DC load detection Meaning (when IB1[D2] = 0) DBx[D4] 0 0 1 1 normal load line driver load open load not valid
DC load bits
By reading the I2C-bus bits the microprocessor can determine, after the start-up of the amplifier, whether a speaker or an external booster is connected. Depending on these bits, the amplifier gain can be selected, 26 dB for normal mode or 16 dB for line driver mode. If the gain select is performed when the amplifier is muted, the gain select will be pop free. The DC load bits are combined with the AC load bits and are only valid when the AC load detection is disabled. When the AC load detection is enabled (IB1[D2] = 1), the bits DBx[D4] will show the content of the AC load detection. When the AC load detection is disabled again, bit DBx[D4] will show the content of the DC load measurement, which was stored during the AC load measurement. The AC load detection can only be performed after the amplifier has completed its start-up cycle and will not conflict with the DC load detection.
7.16 AC load detection
The AC load detection, enabled with IB1[D2] = 1, is used to detect if AC-coupled speakers, for example tweeters, are connected correctly during assembly. The detection is audible because a sine wave of a certain frequency (e.g. 19 kHz) needs to be applied to the inputs of the amplifier. The output voltage over the load impedance will generate an amplifier current. If the amplifier peak current triggers a 460 mA (peak) threshold detector three times, the AC load detection bit will be set. A three `threshold cross' counter is used to prevent false AC load detection when switching the input signal on or off. An AC-coupled speaker will reduce the impedance at the output of the amplifier in a certain frequency band. The presence of an AC-coupled speaker can be determined using 460 mA (peak) and 230 mA (peak) threshold current detection. For instance, at an output voltage of 2 V (peak) the total impedance must be less than 4 to detect the AC-coupled load, or more than 8 to guarantee only a DC connection is detected.
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
17 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
The interpretation of line driver and normal mode DC load bit settings for AC load detection is shown in Table 6.
Table 6. DBx[D4] 0 1 AC load detection Meaning (when IB1[D2] = 1) no AC load detected AC load detected
When bit IB1[D2] = 1, the AC load detection is enabled. The AC load detection can only be performed after the amplifier has completed its start-up cycle and will not conflict with the DC load detection.
20 |Zth(load)| () 16
001aad177
(1)
12
8
(2)
4
0 0 1 2 3 4 VoM (V) 5
(1) Ith(o)det(load)AC < 230 mA (no load detection level) (2) Ith(o)det(load)AC > 460 mA (load detection level)
Fig 13. AC load impedance as a function of peak output voltage
7.17 I2C-bus diagnostic readout
The diagnostic information of the amplifier can be read via the I2C-bus. The I2C-bus bits are set on a failure and will be reset with the I2C-bus read command. Even when the failure is removed, the microprocessor will know what was wrong by reading the I2C-bus. The consequence of this procedure is that old information is read during the I2C-bus readout. Most actual information will be gathered after two successive read commands. The DIAG pin will give actual diagnostic information (when selected). When a failure is removed, the DIAG pin will be released instantly, independently of the I2C-bus latches.
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
18 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
8. I2C-bus specification
Table 7. Open 51 k to ground 10 k to ground Ground TDA8594 hardware address select A6 1 1 1 no A5 1 1 1 I2C-bus; A4 0 0 0 A3 1 1 1 A2 1 1 1 A1 0 0 1 A0 0 1 1 R/W 0 = write to TDA8594 1 = read from TDA8594 0 = write to TDA8594 1 = read from TDA8594 0 = write to TDA8594 1 = read from TDA8594 legacy mode Pin ADSEL
SDA
SDA
SCL S START condition P STOP condition
SCL
mba608
Fig 14. Definition of START and STOP conditions
SDA
SCL data line stable; data valid change of data allowed
mba607
Fig 15. Bit transfer
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
19 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
I2C-BUS WRITE SCL 1 2 7 8 9 1 2 7 8 9
SDA
MSB
MSB - 1
LSB + 1
ACK
MSB
MSB - 1
LSB + 1
LSB
ACK
S
ADDRESS
W
A
WRITE DATA
A
P
To stop the transfer, after the last acknowledge (A) a STOP condition (P) must be generated I2C-BUS READ SCL 1 2 7 8 9 1 2 7 8 9
SDA
MSB
MSB - 1
LSB + 1
ACK
MSB
MSB - 1
LSB + 1
LSB
ACK
S
ADDRESS
R
A
READ DATA
NA
P
: generated by master (microcontroller) : generated by slave S P A NA R/W : START : STOP : acknowledge : not acknowledge : read / write
To stop the transfer, the last byte must not be acknowledged and a STOP condition (P) must be generated
001aac649
Fig 16. I2C-bus read and write modes
8.1 Instruction bytes
I2C-bus mode:
* If bit R/W = 0, the TDA8594 expects three instruction bytes; IB1, IB2 and IB3 * After a power-on reset, all instruction bits are set to zero.
Legacy mode:
* All bits equal to zero define the setting, with the exception of bit IB1[D0] which is
ignored; see Table 8.
Table 8. Bit D7 D6 Instruction byte IB1 Description don't care channel 3 clip information on DIAG or STB pin 0 = clip information on DIAG pin 1 = clip information on STB pin D5 channel 1 clip information on DIAG or STB pin 0 = clip information on DIAG pin 1 = clip information on STB pin
TDA8594_2 (c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
20 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Instruction byte IB1 ...continued Description channel 4 clip information on DIAG or STB pin 0 = clip information on DIAG pin 1 = clip information on STB pin
Table 8. Bit D4
D3
channel 2 clip information on DIAG or STB pin 0 = clip information on DIAG pin 1 = clip information on STB pin
D2
AC load detection enable 0 = AC load detection disabled 1 = AC load detection enabled; DBx[D4] bits not available for DC load detection
D1
DC load detection enable 0 = DC load detection disabled 1 = DC load detection enabled
D0
amplifier start enable 0 = amplifier not enabled, DIAG pin will remain LOW 1 = amplifier will start up, power-on occurred (DB2[D7] will be reset) and DIAG pin will be released
Table 9. Bit D7 and D6
Instruction byte IB2 Description clip detection level 00 = clip detection level 2 % 01 = clip detection level 5 % 10 = clip detection level 10 % 11 = clip detection level disabled
D5
temperature information on DIAG pin 0 = temperature information on DIAG pin 1 = no temperature information on DIAG pin
D4
load fault information (shorts, missing current) on DIAG pin 0 = fault information on DIAG pin 1 = no fault information on DIAG pin
D3
low pop (slow start) enable 0 = low pop enabled 1 = low pop disabled
D2
soft mute channel 1 and channel 3 (mute delay 20 ms) 0 = no mute 1 = mute
D1
soft mute channel 2 and channel 4 (mute delay 20 ms) 0 = no mute 1 = mute
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
21 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Instruction byte IB2 ...continued Description fast mute all amplifier channels (mute delay 100 s) 0 = no mute 1 = mute
Table 9. Bit D0
Table 10. Bit D7 D6
Instruction byte IB3 Description don't care amplifier channel 1 and channel 3 gain select 0 = 26 dB 1 = 16 dB
D5
amplifier channel 2 and channel 4 gain select 0 = 26 dB 1 = 16 dB
D4
temperature pre-warning level 0 = warning level on 145 C 1 = warning level on 122 C
D3
disable channel 3 0 = channel 3 enabled 1 = channel 3 disabled
D2
disable channel 1 0 = channel 1 enabled 1 = channel 1 disabled
D1
disable channel 4 0 = channel 4 enabled 1 = channel 4 disabled
D0
disable channel 2 0 = channel 2 enabled 1 = channel 2 disabled
8.2 Data bytes
I2C-bus mode:
* If bit R/W = 1, the TDA8594 sends four data bytes to the microprocessor: DB1, DB2,
DB3, and DB4
* All bits except DB1[D7] and DB3[D7] are latched. * All bits except DBx[D4] and DBx[D5] are reset after a read operation. Bit DBx[D2] is
set after a read operation; see Section 7.14
* For explanation of AC and DC load detection bits; see Section 7.15 and Section 7.16.
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
22 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Data byte DB1 Description temperature pre-warning 0 = no warning 1 = junction temperature too high
Table 11. Bit D7
D6
speaker fault channel 2 (missing current) 0 = no missing current 1 = missing current
D5 and D4
channel 2 DC load or AC load detection if bit IB1[D2] = 1, AC load detection is enabled, bit D5 is don't care, bit D4 has the following meaning 0 = no AC load 1 = AC load detected if bit IB1[D2] = 0, AC load detection is disabled, bits D5 and D4 are available for DC load detection 00 = normal load 01 = not valid 10 = line driver load 11 = open load
D3
channel 2 shorted load 0 = not shorted load 1 = shorted load
D2
channel 2 output offset 0 = no output offset 1 = output offset
D1
channel 2 short to VP 0 = no short to VP 1 = short to VP
D0
channel 2 short to ground 0 = no short to ground 1 = short to ground
Table 12. Bit D7
Data byte DB2 Description power-on reset and amplifier status 0 = amplifier on 1 = power-on reset has occurred; amplifier off
D6
speaker fault channel 4 (missing current) 0 = no missing current 1 = missing current
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
23 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Data byte DB2 ...continued Description channel 4 DC load or AC load detection if bit IB1[D2] = 1, AC load detection is enabled, bit D5 is don't care, bit D4 has the following meaning 0 = no AC load 1 = AC load detected if bit IB1[D2] = 0, AC load detection is disabled, bits D5 and D4 are available for DC load detection 00 = normal load 01 = not valid 10 = line driver load 11 = open load
Table 12. Bit D5 and D4
D3
channel 4 shorted load 0 = not shorted load 1 = shorted load
D2
channel 4 output offset 0 = no output offset 1 = output offset
D1
channel 4 short to VP 0 = no short to VP 1 = short to VP
D0
channel 4 short to ground 0 = no short to ground 1 = short to ground
Table 13. Bit D7
Data byte DB3 Description maximum temperature protection 0 = no protection 1 = maximum temperature protection
D6
speaker fault channel 1 (missing current) 0 = no missing current 1 = missing current
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
24 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Data byte DB3 ...continued Description channel 1 DC load or AC load detection if bit IB1[D2] = 1, AC load detection is enabled, bit D5 is don't care, bit D4 has the following meaning 0 = no AC load 1 = AC load detected if bit IB1[D2] = 0, AC load detection is disabled, bits D5 and D4 are available for DC load detection 00 = normal load 01 = not valid 10 = line driver load 11 = open load
Table 13. Bit D5 and D4
D3
channel 1 shorted load 0 = not shorted load 1 = shorted load
D2
channel 1 output offset 0 = no output offset 1 = output offset
D1
channel 1 short to VP 0 = no short to VP 1 = short to VP
D0
channel 1 short to ground 0 = no short to ground 1 = short to ground
Table 14. Bit D7 D6
Data byte DB4 Description reserved speaker fault channel 3 (missing current) 0 = no missing current 1 = missing current
D5 and D4
channel 3 DC load or AC load detection if bit IB1[D2] = 1, AC load detection is enabled, bit D5 is don't care, bit D4 has the following meaning 0 = no AC load 1 = AC load detected if bit IB1[D2] = 0, AC load detection is disabled, bits D5 and D4 are available for DC load detection 00 = normal load 01 = not valid 10 = line driver load 11 = open load
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
25 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Data byte DB4 ...continued Description channel 3 shorted load 0 = not shorted load 1 = shorted load
Table 14. Bit D3
D2
channel 3 output offset 0 = no output offset 1 = output offset
D1
channel 3 short to VP 0 = no short to VP 1 = short to VP
D0
channel 3 short to ground 0 = no short to ground 1 = short to ground
9. Limiting values
Table 15. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol VP Parameter supply voltage Conditions operating non operating load dump protection; duration 50 ms, rise time > 2.5 ms VP(r) IOSM IORM Tj(max) Tstg Tamb V(prot) reverse supply voltage non-repetitive peak output current repetitive peak output current maximum junction temperature storage temperature ambient temperature protection voltage AC and DC short-circuit of output pins and across the load pins SCL and SDA pins IN1, IN2, IN3, IN4, SVR, ACGND and DIAG pin STB tmax = 10 minutes Min 8 -1 Max 18 +50 50 Unit V V V
-55 -40 -
-2 13 8 150 +150 +105 VP
V A A C C C V
Vx
voltage on pin x
0 0
6.5 13
V V
0
24
V
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
26 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Table 15. Limiting values ...continued In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Ptot Vesd Parameter total power dissipation electrostatic discharge voltage Conditions Tcase = 70 C human body model; C = 100 pF; Rs = 1.5 k machine model; C = 200 pF; Rs = 10 ; Ls = 0.75 H Min Max 80 2000 Unit W V
-
200
V
10. Thermal characteristics
Table 16. Symbol Rth(j-c) Rth(j-a) Thermal characteristics Parameter thermal resistance from junction to case thermal resistance from junction to ambient in free air Conditions Typ 1 40 Unit K/W K/W
11. Characteristics
Table 17. Characteristics Refer to Figure 29 at VP = VP1 = VP2 = 14.4 V; RL = 4 ; f = 1 kHz; RS = 0 ; normal mode; unless otherwise specified. Tested at Tamb = 25 C; guaranteed for Tamb = -40 C to +105 C. Symbol VP Iq Istb VO VP(low)(mute) VP(low)(mute) Vth(ovp) Vhr VPOR VO(offset) Parameter supply voltage quiescent current standby current output voltage low supply voltage mute low supply voltage mute hysteresis overvoltage protection threshold voltage headroom voltage power-on reset voltage output offset voltage when headroom protection is activated; see Figure 7 see Figure 9 amplifier on amplifier mute line driver mode RL(tol) load resistance tolerance VP 18 V VP 16 V
TDA8594_2
Conditions RL = 4 RL = 2 no load VSTB = 0.4 V with rising supply voltage with falling supply voltage
[1]
Min 8 8 6.7 6.9 6.3 0.1 18 1.1 4.1 -95 -25 -40 3.2 1.6
Typ 14.4 14.4 270 4 7 7.5 6.8 0.7 20 1.6 5.0 0 0 0 4 2
Max 18 16 400 15 7.2 8 7.4 1 22 2.0 5.8 +95 +25 +40 -
Unit V V mA A V V V V V V V mV mV mV
Supply voltage behavior
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
27 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Table 17. Characteristics ...continued Refer to Figure 29 at VP = VP1 = VP2 = 14.4 V; RL = 4 ; f = 1 kHz; RS = 0 ; normal mode; unless otherwise specified. Tested at Tamb = 25 C; guaranteed for Tamb = -40 C to +105 C. Symbol VSTB Parameter voltage on pin STB Conditions Standby mode selected I2C-bus mode legacy mode mute selected legacy mode (I2C-bus off) Operating mode selected I2C-bus mode legacy mode (I2C-bus off)
[2]
Min
Typ
Max
Unit
Mode select and second clip detection: pin STB off) 2.5 2.5 6.5 1 1 4.5 VP VP V V V V V
(I2C-bus
low voltage on pin STB when pulled down during clipping ISTB = 150 A ISTB = 500 A ISTB current on pin STB VSTB = 0 V to 8.5 V clip detection not active; I2C-bus mode legacy mode Start-up, shut-down and mute timing twake wake-up time time after wake-up via STB pin before first I2C-bus transmission is recognized; see Figure 3
5.6 6.1 -
4 10 300
6.1 7.2 30 70 500
V V A A s
ILO(SVR) td(mute_off)
output leakage current on pin SVR mute off delay time 10 % of output signal; ILO = 0 A I2C-bus mode; with ILO = 10 A +15 ms; no DC load (IB1[D1] = 0); low pop disabled (IB2[D3] = 1); see Figure 3 I2C-bus mode; with ILO = 10 A +20 ms; DC load active (IB1[D1] = 1); low pop disabled (IB2[D3] = 1); see Figure 4 I2C-bus mode; with ILO = 10 A +20 ms; DC load active (IB1[D1] = 1); low pop enabled (IB2[D3] = 0); see Figure 5 legacy mode; with ILO = 10 A +20 ms; VSTB = 7 V; RADSEL = 0 ; see Figure 6
[3]
-
-
10
A
295
465
795
ms
500
640
940
ms
640
830
1190
ms
430
650
1030
ms
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
28 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Table 17. Characteristics ...continued Refer to Figure 29 at VP = VP1 = VP2 = 14.4 V; RL = 4 ; f = 1 kHz; RS = 0 ; normal mode; unless otherwise specified. Tested at Tamb = 25 C; guaranteed for Tamb = -40 C to +105 C. Symbol tamp_on Parameter amplifier on time Conditions time from amplifier mute to amplifier on; 90 % of output signal; ILO = 0 A I2C-bus mode; with ILO = 10 A +30 ms; no DC load (IB1[D1] = 0); low pop disabled (IB2[D3] = 1); see Figure 3 I2C-bus mode; with ILO = 10 A +35 ms; DC load active (IB1[D1] = 1); low pop disabled (IB2[D3] = 1); see Figure 4 I2C-bus mode; with ILO = 10 A +30 ms; DC load active (IB1[D1] = 1); low pop enabled (IB2[D3] = 0); see Figure 5 legacy mode; with ILO = 10 A +20 ms; VSTB = 7 V; RADSEL = 0 ; see Figure 6 toff amplifier switch-off time time to DC output voltage < 0.1 V; I2C-bus mode; ILO = 0 A with ILO = 10 A +0 ms; low pop enabled (IB2[D3] = 0); see Figure 4 with ILO = 10 A +0 ms; low pop disabled (IB2[D3] = 1); see Figure 5 td(mute-on) mute to on delay time from 10 % to 90 % of output signal; IB2[D1] and IB2[D2] = 1 to 0; Vi = 50 mV; see Figure 6 from 90 % to 10 % of output signal; Vi = 50 mV; IB2[D1] and IB2[D2] = 0 to 1 (soft mute); see Figure 6 from 90 % to 10 % of output signal; VSTB from 8 V to 1.3 V (fast mute); see Figure 6
[3] [3]
Min
Typ
Max
Unit
360
520
870
ms
565
695
1015
ms
710
890
1270
ms
510
720
1120
ms
120
245
530
ms
140
280
620
ms
-
20
40
ms
td(soft_mute)
soft mute delay time
-
20
40
ms
td(fast_mute)
fast mute delay time
-
0.1
1
ms
t(start-Vo(off)) t(start-SVRoff)
engine start to output off time VP from 14.4 V to 7 V; Vo < 0.5 V; see Figure 8 engine start to SVR off time VP from 14.4 V to 7 V; VSVR < 2 V; see Figure 8 pins SCL and SDA pins SCL and SDA pin SDA; IL = 5 mA
Rev. 02 -- 11 December 2007
-
0.1 40
1 75
ms ms
I2C-bus interface[4] VIL VIH VOL
TDA8594_2
LOW-level input voltage HIGH-level input voltage LOW-level output voltage
2.3 -
-
1.5 5.5 0.4
V V V
29 of 48
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Table 17. Characteristics ...continued Refer to Figure 29 at VP = VP1 = VP2 = 14.4 V; RL = 4 ; f = 1 kHz; RS = 0 ; normal mode; unless otherwise specified. Tested at Tamb = 25 C; guaranteed for Tamb = -40 C to +105 C. Symbol fSCL RADSEL Parameter SCL clock frequency resistance on pin ADSEL address A[6:0] = 110 1100 I2C-bus address A[6:0] = 110 1101 I2C-bus address A[6:0] = 110 1111 legacy mode Diagnostic VOL(DIAG) VO(offset_det) THDclip LOW-level output voltage on pin DIAG output voltage at offset detection total harmonic distortion clip detection level IB2[D7:D6] = 10 IB2[D7:D6] = 01 IB2[D7:D6] = 00 THDclip total harmonic distortion clip detection level variation no overlap between IB2[D7:D6] = 10 and IB2[D7:D6] = 01 no overlap between IB2[D7:D6] = 01 and IB2[D7:D6] = 00 Tj(AV)(pwarn) Tj(AV)(G(-0.5dB)) Tj(pw-G(-0.5dB)) pre-warning average junction temperature IB3[D4] = 0 IB3[D4] = 1 fault condition; IDIAG = 1 mA 1.5 5 3 1 1 1 135 112 150 7 1.75 10 5 2 4 3.5 145 122 155 10 0.3 2.2 18 9 3 9 6 155 132 160 13 V V % % % % % C C C C I2C-bus Conditions Min 155 42 7 Typ 400 51 10 Max 57 15 0.5 Unit kHz k k k k
average junction temperature Vi = 0.05 V for 0.5 dB gain reduction prewarning to 0.5 dB gain reduction junction temperature difference junction temperature difference between 0.5 dB gain reduction and off gain reduction of thermal foldback load detection threshold impedance from thermal foldback to when all outputs are switched off all channels switched off I2C-bus mode normal load detection line driver load detection I2C-bus mode
Tj(G(-0.5dB)-of)
10
15
20
C
G(th_fold) Zth(load)
-
20
-
dB
100 5000
-
20 800 -

Zth(open) Ith(o)det(load)AC
open load detection threshold impedance AC load detection output threshold current
I2C-bus mode AC load bit is set AC load bit is not set 460 230 mA mA
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
30 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Table 17. Characteristics ...continued Refer to Figure 29 at VP = VP1 = VP2 = 14.4 V; RL = 4 ; f = 1 kHz; RS = 0 ; normal mode; unless otherwise specified. Tested at Tamb = 25 C; guaranteed for Tamb = -40 C to +105 C. Symbol Amplifier Po output power RL = 4 ; VP = 14.4 V; THD = 0.5 % RL = 4 ; VP = 14.4 V; THD = 10 % RL = 4 ; VP = 14.4 V; maximum power; Vi = 2 V (RMS) square wave RL = 4 ; VP = 15.2 V; maximum power; Vi = 2 V (RMS) square wave RL = 2 ; VP = 14.4 V; THD = 0.5 % RL = 2 ; VP = 14.4 V; THD = 10 % RL = 2 ; VP = 14.4 V; maximum power; Vi = 2 V (RMS) square wave THD total harmonic distortion Po = 1 W to 12 W; f = 1 kHz; RL = 4 Po = 1 W to 12 W; f = 10 kHz Po = 1 W to 12 W; f = 20 kHz line driver mode; Vo = 1 V (RMS) and 5 V (RMS), f = 20 Hz to 20 kHz; complex load; see Figure 31 cs channel separation f = 1 kHz; RS = 1 k; RACGND = 250 f = 10 kHz; RS = 1 k; RACGND = 250 SVRR CMRR supply voltage ripple rejection 100 Hz to 10 kHz; RS = 1 k; RACGND = 250 common mode rejection ratio normal mode; Vcm = 0.3 V (p-p); f = 1 kHz to 3 kHz; RS = 1 k; RACGND = 250 f = 1 kHz filter 20 Hz to 22 kHz; RS = 1 k mute mode line driver mode normal mode Gv voltage gain single-ended in; differential out normal mode line driver mode 25.5 15.5 26 16 26.5 16.5 dB dB 19 22 45 26 29 65 V V V
[5]
Parameter
Conditions
Min 19 26 42
Typ 22 28 44
Max -
Unit W W W
47
50
-
W
34 45 70
37 48 75
-
W W W
-
0.01 0.09 0.14 0.02
0.1 0.3 0.4 0.05
% % % %
65 60 55 45
80 65 70 65
-
dB dB dB dB
[5]
[5]
[5]
Vcm(max)(rms) Vn(o)
maximum common mode voltage (RMS value) output noise voltage
-
-
0.6
V
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
31 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Table 17. Characteristics ...continued Refer to Figure 29 at VP = VP1 = VP2 = 14.4 V; RL = 4 ; f = 1 kHz; RS = 0 ; normal mode; unless otherwise specified. Tested at Tamb = 25 C; guaranteed for Tamb = -40 C to +105 C. Symbol Zi mute Vo(mute)(RMS) Bp Parameter input impedance mute attenuation RMS mute output voltage power bandwidth Conditions Tamb = -40 C to +105 C Tamb = 0 C to 105 C Vo / Vo(mute); Vi = 50 mV Vi = 1 V (RMS); filter 20 Hz to 22 kHz -1 dB Min 50 60 80 Typ 70 70 92 25 20 to 20000 Max 95 95 Unit k k dB V Hz
[1] [2] [3]
Operation above 16 V in a 2 mode with reactive load can trigger the amplifier protection. The amplifier switches off and will restart after 16 ms resulting in an `audio hole'. VSTB depends on the current into the STB pin: minimum = (1429 x ISTB) + 5.4 V, maximum = (3143 x ISTB) + 5.6 V. The times are specified without leakage current. For a leakage current of 10 A on the SVR pin, the delta time is specified. If the capacitor value on the SVR pin changes with 30 %, the specified time will also change with 30 %. The specified times include an Equivalent Series Resistance (ESR) of 15 for the capacitor on the SVR pin. Standard I2C-bus specification: maximum LOW level = 0.3 x VDD, minimum HIGH level = 0.7 x VDD. To comply with 5 V and 3.3 V logic, the maximal LOW level is defined by VDD = 5 V and the minimum HIGH level by VDD = 3.3 V. For optimum channel separation, supply voltage ripple rejection and common mode rejection ratio, a resistor R ACGND = ----- should 4 be in series with the ACGND capacitor.
[4]
[5]
RS
12. Performance diagrams
102 THD (%) 10
001aad121
1
10-1
(1)
10-2
(2) (3)
10-3 10-2
10-1
1
10 Po (W)
102
VP = 14.4 V; RL = 4 . (1) f = 10 kHz. (2) f = 1 kHz. (3) f = 100 Hz.
Fig 17. Total harmonic distortion as a function of output power
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
32 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
102 THD (%) 10
001aad122
1
10-1
(1)
10-2
(2) (3)
10-3 10-2
10-1
1
10 Po (W)
102
VP = 14.4 V; RL = 2 . (1) f = 10 kHz. (2) f = 1 kHz. (3) f = 100 Hz.
Fig 18. Total harmonic distortion as a function of output power
30 Po (W) 28
(1)
001aad123
26
24
(2)
22
20 10-2
10-1
1
10 f (kHz)
102
VP = 14.4 V; RL = 4 . (1) THD = 10 %. (2) THD = 0.5 %.
Fig 19. Output power as a function of frequency
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
33 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
60 Po (W) 50
(1)
001aad124
40
(2)
30 10-2
10-1
1
10 f (kHz)
102
VP = 14.4 V; RL = 2 . (1) THD = 10 %. (2) THD = 0.5 %.
Fig 20. Output power as a function of frequency
80 Po (W) 60
(1)
001aad125
40
(2) (3)
20
0 5 10 15 VP (V) 20
VP = 14.4 V; RL = 4 . (1) Po(max). (2) THD = 10 %. (3) THD = 0.5 %.
Fig 21. Output power as a function of supply voltage
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
34 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
120 Po (W) 80
(2)
001aad126
(1)
(3)
40
0 5 10 15 VP (V) 20
VP = 14.4 V; RL = 2 . (1) Po(max). (2) THD = 10 %. (3) THD = 0.5 %.
Fig 22. Output power as a function of supply voltage
1 THD (%) 10-1
001aad127
10-2
(1)
(2)
10-3 10-2
10-1
1
10 f (kHz)
102
VP = 14.4 V; RL = 4 . (1) Po = 1 W. (2) Po = 10 W.
Fig 23. Total harmonic distortion as a function of frequency; in normal mode
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
35 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
10-1
001aad128
THD (%)
(1)
10-2
(2)
10-3 10-2
10-1
1
10 f (kHz)
102
VP = 14.4 V; RL = 600 . (1) Vo = 1 V. (2) Vo = 5 V; front channels.
Fig 24. Total harmonic distortion as a function of frequency in line driver mode
-40 SVRR (dB) -50
001aad129
-60
-70
-80
-90 10-2
10-1
1
10 f (kHz)
102
VP = 14.4 V; RL = 4 ; RS = 1 k; Vripple = 2 V (p-p).
Fig 25. Supply voltage ripple rejection as a function of frequency
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
36 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
90 cs (dB) 80
001aad130
70
60
50 10-2
10-1
1
10 f (kHz)
102
VP = 14.4 V; RL = 4 ; RS = 1 k; Po = 1 W.
Fig 26. Channel separation as a function of frequency
50 P (W) 40
001aad730
30
20
10
0 0 10 20 30 Po (W) 40
VP = 14.4 V; RL = 4 ; f = 1 kHz.
Fig 27. Power dissipation as a function of output power
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
37 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
100 P (W) 80
001aad731
60
40
20
0 0 20 40 60 Po (W) 80
VP = 14.4 V; RL = 2 ; f = 1 kHz.
Fig 28. Power dissipation as a function of output power
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
38 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
13. Application information
8.5 V RADSEL (2) 5V
SDA 1
SCL 23
VP1 21
VP2 7
ADSEL
26
10 k
10 k
STB 2
STANDBY/ FAST MUTE
I2C-BUS INTERFACE
5 DIAG CLIP DETECT/DIAGNOSTIC
RS
470 nF
IN1 12
(1) 1.8 nF
MUTE
10 OUT1+
26 dB/ 16 dB
PROTECTION/ DIAGNOSTIC
8 OUT1-
RS
470 nF
IN3 16
(1) 1.8 nF
MUTE
18 OUT3+
26 dB/ 16 dB
PROTECTION/ DIAGNOSTIC
20 OUT3-
RS
470 nF
IN2 13
(1) 1.8 nF
MUTE
6 OUT2+
26 dB/ 16 dB
PROTECTION/ DIAGNOSTIC
4 OUT2-
RS
470 nF
IN4 15
(1) 1.8 nF
MUTE VP
22 OUT4+
26 dB/ 16 dB
PROTECTION/ DIAGNOSTIC
24 OUT4-
27 TAB
TDA8594
11 SVR
(2) 22 F
14 SGND
17 ACGND
(3) 2.2 F
9 PGND1
3 PGND2
19 PGND3
25 PGND4
001aad132
For EMC reasons, a 10 nF capacitor (not shown) can be added from each amplifier output to ground. (1) For EMC reasons a capacitor of 1.8 nF from the input pin to SGND is advised (optional). (2) The SVR and ACGND capacitors and the RADSEL resistor should first be connected to SGND before connecting to PGNDn pins. (3) ACGND capacitor value must be close to 4 x input capacitor value; 4 x 470 nF capacitors can be used as an alternative to the 2.2 F capacitor shown.
Fig 29. Test and application diagram
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
39 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
ACGND
1 F
17
TDA8594
MICROPROCESSOR
1.7 k
0.22 F
100
47 pF
001aad133
Fig 30. Beep input circuit (gain = 0 dB) to apply a microprocessor beep signal to all four amplifiers
positive output a) negative output
3.9 nF 3.9 nF 47 k 180 pF 47 k
positive output b) negative output
3.9 nF 3.9 nF 180 pF 200
001aad134
Fig 31. Complex loads for measuring THD in line driver mode
8.5 V 5.6 k
4.7 k
18 k
TDA8594
2
STB switch
10 k
3.3 V MICROPROCESSOR
001aad131
Fig 32. Circuit for combined mode selection and clip detection functions on pin STB
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
40 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
13.1 PCB layout
top
001aad162
Fig 33. PCB layout of test and application circuit; copper layer top
tob
001aad163
Fig 34. PCB layout of test and application circuit; copper layer bottom (top view)
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
41 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
Sense address select GND VP 2200 F
TDA8594/TDA8595
1 F
top
D8 (00) DA (01)
12C supply Philips Semiconductors + 2.2 F + 470 nF + 2.2 F
+
clip 2
DE (11)
+
10 F
mode on D1
470 nF
diag s. by 12C on Mute off Legacy DZ 8.2 V 10 k 3 4 GND VP -4+ OUT SGND IN 2 1 -3+ +1- OUT +2- SCL GND + 5V SDA
001aad164
Fig 35. PCB layout of test and application circuit; components top
tob
220 nF 10 k BC859 2 k 10 k 12 k 51 k 250 4.7 k 18 k 22 k 470 nF 470 nF 4 x 470 nF TDA3664 220 nF
001aad165
Fig 36. PCB layout of test and application circuit; components bottom (top view)
14. Test information
14.1 Quality information
This product has been qualified in accordance with the Automotive Electronics Council (AEC) standard Q100 - Stress test qualification for integrated circuits, and is suitable for use in automotive applications.
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
42 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
15. Package outline
DBS27P: plastic DIL-bent-SIL (special bent) power package; 27 leads (lead length 6.8 mm) SOT827-1
non-concave x Dh
D Eh
view B: mounting base side
d
A2
B j E A L3 L4
L 1 Z e1 e bp 27 wM Q m c e2 L2 vM
0
10 scale
20 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A 19 A2 bp c 0.5 0.3 D(1) d Dh 12 E(1) 15.9 15.5 e 2 e1 1 e2 4 Eh 8 j 3.4 3.1 L 6.8 L2 3.9 3.1 L3 L4 m 4 Q 2.1 1.8 v 0.6 w x Z(1) 1.8 1.2
4.65 0.60 4.35 0.45
29.2 25.8 28.8 25.4
1.15 22.9 0.85 22.1
0.25 0.03
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT827-1 REFERENCES IEC --JEDEC --JEITA --EUROPEAN PROJECTION
ISSUE DATE 03-07-29
Fig 37. Package outline SOT827-1 (DBS27P)
TDA8594_2 (c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
43 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
RDBS27P: plastic rectangular-DIL-bent-SIL (reverse bent) power package; 27 leads (row spacing 2.54 mm)
SOT878-1
non-concave x D Dh
Eh
view B: mounting base side d A2
B j E
A L 1 27 c Z e e1 bp w
M
e2
Q L1
v
M
0
10 scale
20 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A 13.5 A2 4.65 4.35 bp 0.60 0.45 c 0.5 0.3 D (1) 29.2 28.8 d 25.8 25.4 Dh 12 E (1) 15.9 15.5 e 2 e1 1 e2 2.54 Eh 8 j 3.4 3.1 L 3.75 3.15 L1 3.75 3.15 Q 2.1 1.8 v 0.6 w 0.25 x 0.03 Z (1) 1.8 1.2
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included OUTLINE VERSION SOT878-1 REFERENCES IEC JEDEC JEITA EUROPEAN PROJECTION ISSUE DATE 05-01-11 05-01-26
Fig 38. Package outline SOT878-1 (RDBS27P)
TDA8594_2 (c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
44 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
16. Mounting
2
27
1
1
2.54
26 2
hole diameter min. 0.92
0.08
M
Dimensions in mm
sot878-1_fr
Dimensions in mm. Reflow soldering is the recommended soldering method. Dimension `1' relates to dimension `e1' in Figure 38; dimension `2' relates to dimension `e2' in Figure 38.
Fig 39. SOT878-1 reflow soldering footprint
17. Abbreviations
Table 18. Acronym ACK BCDMOS BTL CMOS DMOS DSP EMC ESR LSB MSB NMOS PMOS PCB POR SOAR SOI Abbreviations Description ACKnowledge not Bipolar CMOS/DMOS Bridge Tied Load Complementary Metal-Oxide Semiconductor Double-diffused Metal-Oxide Semiconductor Digital Signal Processor ElectroMagnetic Compatibility Equivalent Series Resistance Least Significant Bit Most Significant Bit Negative-channel Metal-Oxide Semiconductor Positive-channel Metal-Oxide Semiconductor Printed-Circuit Board Power-On Reset Safe Operating ARea Silicon On Insulator
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
45 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
18. Revision history
Table 19. Revision history Release date 20071211 Data sheet status Product data sheet Change notice Supersedes TDA8594_1 Document ID TDA8594_2 Modifications:
* * * * * *
The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors. Legal texts have been adapted to the new company name where appropriate. Section 2.1 and Section 14: Added device qualification "AEC-Q100 qualification". Figure 1 and Figure 29: Changed internal circuit on pin SVR. Figure 32: Value of base-emitter resistor changed to 5.6 k. Table 17, Diagnostic: - Symbols and parameters of "junction temperature" characteristics updated (4x). - (Old) symbol and parameter "IoM = peak current output" changed to "Ith(o)det(load)AC = AC load detection output threshold current".
TDA8594_1 (9397 750 15066)
20060302
Product data sheet
-
-
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
46 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
19. Legal information
19.1 Data sheet status
Document status[1][2] Objective [short] data sheet Preliminary [short] data sheet Product [short] data sheet
[1] [2] [3]
Product status[3] Development Qualification Production
Definition This document contains data from the objective specification for product development. This document contains data from the preliminary specification. This document contains the product specification.
Please consult the most recently issued document before initiating or completing a design. The term `short data sheet' is explained in section "Definitions". The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com.
19.2 Definitions
Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail.
to result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale -- NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. No offer to sell or license -- Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights.
19.3 Disclaimers
General -- Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Right to make changes -- NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use -- NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected
19.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. I2C-bus -- logo is a trademark of NXP B.V.
20. Contact information
For additional information, please visit: http://www.nxp.com For sales office addresses, send an email to: salesaddresses@nxp.com
TDA8594_2
(c) NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 -- 11 December 2007
47 of 48
NXP Semiconductors
TDA8594
I2C-bus controlled 4 x 50 W power amplifier
21. Contents
1 2 2.1 2.2 3 4 5 6 6.1 6.2 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.7.1 7.7.2 7.8 7.9 7.10 7.11 7.12 7.13 7.14 7.15 7.16 7.17 8 8.1 8.2 9 10 11 12 13 13.1 14 14.1 15 16 17 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 I2C-bus mode . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pinning information . . . . . . . . . . . . . . . . . . . . . . 4 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 Functional description . . . . . . . . . . . . . . . . . . . 5 Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Output stage . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Distortion (clip) detection . . . . . . . . . . . . . . . . . 6 Output protection and short-circuit operation . . 6 SOAR protection. . . . . . . . . . . . . . . . . . . . . . . . 6 Speaker protection . . . . . . . . . . . . . . . . . . . . . . 6 Standby and mute operation. . . . . . . . . . . . . . . 7 Legacy mode (pin ADSEL connected to ground) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 I2C-bus mode . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Start-up and shut-down sequence . . . . . . . . . . 7 Power-on reset and supply voltage spikes . . . 11 Engine start and low voltage operation. . . . . . 11 Overvoltage and load dump protection. . . . . . 14 Thermal pre-warning and thermal protection . 14 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Offset detection. . . . . . . . . . . . . . . . . . . . . . . . 16 DC load detection . . . . . . . . . . . . . . . . . . . . . . 16 AC load detection . . . . . . . . . . . . . . . . . . . . . . 17 I2C-bus diagnostic readout . . . . . . . . . . . . . . . 18 2C-bus specification . . . . . . . . . . . . . . . . . . . . 19 I Instruction bytes . . . . . . . . . . . . . . . . . . . . . . . 20 Data bytes. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 26 Thermal characteristics. . . . . . . . . . . . . . . . . . 27 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 27 Performance diagrams . . . . . . . . . . . . . . . . . . 32 Application information. . . . . . . . . . . . . . . . . . 39 PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Test information . . . . . . . . . . . . . . . . . . . . . . . . 42 Quality information . . . . . . . . . . . . . . . . . . . . . 42 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 43 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 45 18 19 19.1 19.2 19.3 19.4 20 21 Revision history . . . . . . . . . . . . . . . . . . . . . . . Legal information . . . . . . . . . . . . . . . . . . . . . . Data sheet status . . . . . . . . . . . . . . . . . . . . . . Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . Contact information . . . . . . . . . . . . . . . . . . . . Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 47 47 47 47 47 47 48
Please be aware that important notices concerning this document and the product(s) described herein, have been included in section `Legal information'.
(c) NXP B.V. 2007.
All rights reserved.
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 11 December 2007 Document identifier: TDA8594_2

▲Up To Search▲

Price & Availability of TDA8594

	To Download TDA8594 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .