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INTEGRATED CIRCUITS
DATA SHEET
TDA1591 PLL stereo decoder and noise blanker
Product specification Supersedes data of March 1992 File under Integrated Circuits, IC01 1996 Sep 02
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
FEATURES * Adjustment-free voltage controlled PLL oscillator for ceramic resonator (f = 456 kHz) * Pilot signal dependent mono/stereo switching * Analog control of mono/stereo change over [stereo blend, Stereo Noise Controller (SNC)] * Adjacent channel noise suppression (114 kHz) * Pilot canceller * Analog control of de-emphasis; High Cut Control (HCC) * Applicable as source selector for AM/FM/cassette switching * Separate interference noise detector * Integrated input low-pass filter for delayed noise blanking * Noise blanking at MPX-demodulator outputs * Internal voltage stabilization. QUICK REFERENCE DATA SYMBOL VP IP Vo(rms) THD S/N cs Vtrigg supply current audio output signal (RMS value) total harmonic distortion signal-to-noise ratio channel separation interference voltage trigger level PARAMETER supply voltage (pin 5) - - - - - - MIN. 7.5 TYP. 10 12 900 0.1 76 40 10 - - 0.3 - - - GENERAL DESCRIPTION
TDA1591
The TDA1591 is a monolithic bipolar integrated circuit providing the stereo decoder function and noise blanking for FM car radio applications. The device operates in a power supply range of 7.5 to 12 V.
MAX. 12 V
UNIT mA mV % dB dB mV
ORDERING INFORMATION TYPE NUMBER TDA1591 TDA1591T PACKAGE NAME DIP20 SO20 DESCRIPTION plastic dual in-line package; 20 leads (300 mil) plastic small outline package; 20 leads; body width 7.5 mm VERSION SOT146-1 SOT163-1
1996 Sep 02
2
from IF level detector stereo indication SNC 100 k 27 k V
iAUX
Product specification
TDA1591
Fig.1 Block diagram with external components, also used as test circuit.
handbook, full pagewidth
1996 Sep 02
HCC 100 k 0.22 F 47 k R2 VoR 11 0.22 F 6.8 nF 6.8 nF PILOT FB-R 18 17 16 15 14 13 12 19 47 k IDENT from pin 5 12 k 10 k 27 k 0.1 F Vref = 1 to 5 V PILOT DETECTOR SWITCH 6.5 k 7.4 k PILOT CANCEL 38 kHz 7.4 k 19 kHz LOGIC INTERFERENCE DETECTOR PULSE FORMER 6.5 k 2-POLE FILTER (30 kHz) GATE AND HCC + STEREO BLEND
BLOCK DIAGRAM
Philips Semiconductors
R1
forced mono
V i MPX
68 k
82 k
470 k
0.1 F
68 pF
(1) C comp
20
75 k
+
4-POLE FILTER (80 kHz)
TDA1591
PLL stereo decoder and noise blanker
PHASE DETECTOR
3
+ REFERENCE CURRENT NOISE DETECTOR VOLTAGE STABILIZER 2 3 4 5 6 7 470 pF 8 FB-L 470 pF 2.2 k 47 nF 100 k CSB456F11 (Murata) 10 100 F 1.2 nF VCO off mute on 0.1 F
+
VCO
1
9 47 k R3 47 k 0.22 F
10 V oL 0.22 F V
27 k
0.22 F
22 nF
VP = 10 V
iAUX
INFI
interference signal (TDA1596, pin 3)
MEH027
(1) Simulates the roll-off of the FM demodulator.
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
PINNING SYMBOL PLL OSC GND Iref VP INFI PUFO NDET FB-L VoL VoR FB-R CDEEL CDEER HCC SNC Vref IDENT PILOT Vi MPX PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DESCRIPTION phase locked loop filter oscillator input/output pin for ceramic resonator ground (0 V) reference current supply voltage (+10 V) interference signal input pulse former time constant; VCO off noise detector time constant; mute on AF feedback input for left audio signal AF output signal left AF output signal right AF feedback input for right audio signal de-emphasis capacitor for left channel de-emphasis capacitor for right channel HCC input for de-emphasis control stereo blend input externally applied reference voltage of 1 to 5 V identification output (HIGH = pilot existing; stereo) pilot detector level (forced mono input) MPX input signal from IF demodulator Fig.2 Pin configuration.
handbook, halfpage
TDA1591
PLL OSC GND Iref VP INFI PUFO NDET FB-L
1 2 3 4 5
20 Vi MPX 19 PILOT 18 IDENT 17 Vref 16 SNC
TDA1591
6 7 8 9 15 HCC 14 CDEER 13 CDEEL 12 FB-R 11 VoR
MHA363
VoL 10
1996 Sep 02
4
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
FUNCTIONAL DESCRIPTION Adapting the MPX input to the level of the FM demodulator output is realized by the value of input resistor R1 (see Fig.3). The total gain of the stereo decoder is applicable by varying the feedback resistors R2 and R3 (see Figs 1 and 4). In mute position and the VCO switched off (pin 7), the output amplifiers can be used for cassette playback, AM stereo purpose or other signal sources. The Stereo Noise Controller (SNC) provides a smooth mono to stereo take-over (see Fig.5). LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VP Ptot Tstg Tamb Ves PARAMETER supply voltage (pin 5) total power dissipation storage temperature operating ambient temperature electrostatic handling; note 1 pins 1 and 16 pin 5 all other pins Note 1. Equivalent to discharging a 200 pF capacitor through a 0 series resistor. -400 -300 -600 +400 +300 +600 0 0 -55 -40 MIN. MAX. 13.2 0.25 +150 +85
TDA1591
For High Cut Control (HCC), the de-emphasis time constant can be changed to higher values (see Figs 7 and 8). This function is controlled by an analog input signal. The noise blanking facility is achieved by gating the stereo decoder output signal. The interference detector generates a gating pulse preferable forced by the level detector voltage of the IF part.
UNIT V W C C V V V
1996 Sep 02
5
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
TDA1591
CHARACTERISTICS VP = 10 V; Tamb = 25 C; input signal Vi MPX(p-p) = 1.7 V; m = 100% (f = 75 kHz, fmod = 1 kHz); de-emphasis of 50 s and series resistor at input R1 = 150 k; measurements taken in Fig.1; unless otherwise specified. SYMBOL Supply VP IP Vi MPX(p-p) Vi MPX(p-p) Vo(rms) Vo V10-11/Vo Vo 10,11 Ro 10,11 cs THD S/N 19 38 57 76 IM2 IM3 57ARI 67 114 190 PSRR VCO (pin 2) fosc f/f V7 oscillator frequency (ceramic resonator) frequency range of free running oscillator capture and holding range VCO-off voltage (pin 7) - 452 - 0 456 - 1 - - 460 - 0.6 kHz kHz % V power supply ripple rejection traffic radio (ARI) Subsidiary Communication Authorization (SCA) Adjacent Channel Interference (ACI) intermodulation for fspur = 1 kHz supply voltage (pin 5) supply current 7.5 - - THD = 1% without pilot THD = 1% 3 - 3 - 3.3 - pin 16 open-circuit; see Fig.6 f = 20 to 16000 Hz f = 19 kHz f = 38 kHz f = 57 kHz f = 76 kHz fmod = 10 kHz; note 1 fmod = 13 kHz; note 1 f = 57 kHz; note 2 f = 67 kHz; note 3 f = 114 kHz; note 4 f = 190 kHz; note 4 f = 100 Hz; Vripple(rms) = 100 mV - - - - - - - - - - 70 - - - 10 12 12 - - - - - 1 4.3 - - 0.3 - - - - - - - - - - - - V mA PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Stereo decoder MPX input signal on pin 20 (peak-to-peak value) overdrive margin of MPX input signal AF mono output signal at pins 10 and 11 (RMS value) overdrive margin of output signal difference of output voltage levels DC output voltage (pins 10 and 11) output resistance channel separation total harmonic distortion signal-to-noise ratio pilot signal suppression subcarrier suppression 1.7 - 900 - - 3.8 130 40 0.1 76 50 50 46 60 60 58 70 - 80 70 35 V dB mV dB dB V dB % dB dB dB dB dB dB dB dB dB dB dB dB
1996 Sep 02
6
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
TDA1591
SYMBOL
PARAMETER
CONDITIONS
MIN. - 8 - 0 1
TYP.
MAX. UNIT
Mono/stereo control (pins 16, 17 and 19) Vi pilot(rms) HYS V19 Vref V16-17 pilot threshold voltage for automatic switching by pilot input voltage (RMS value) hysteresis of pilot threshold voltage switching voltage for external mono control (pin 19) reference input voltage range (pin 17) control voltage for channel separation due to pin 17 (Vref) cs = 6 dB; see Fig.5 cs = 26 dB; see Fig.5 I18 = -200 A V18 = 10 V V8 < 0.4 V V8 > 4 V VO(offset) DC offset voltage (pins 10 and 11) after muting HCC (pin 15) CRdeem control range of de-emphasis for European standard for USA standard V15-17 control voltage (pin 15 due to pin 17) in both standards see Figs 7 and 8 Cdeem = 6.8 nF Cdeem = 10 nF lower value CRdeem upper value CRdeem fint = 120 kHz V8(DC) = 7.7 V V8(DC) = 6.7 V V8 tsup I13,14 Vpulse voltage offset as a function of Vtrigg AF suppression time; pulse width input offset current (pins 13 and 14) trigger sensitivity (pin 6) during AF suppression time pulse = 10 s V6 trigg = 10 mV V6 trigg = 100 mV - - - - - - - 10 100 200 2.3 40 20 10 - - - - - - - mV mV mV V s nA mV 50 75 - - - - 0 -300 150 225 - - s s mV mV stereo on stereo off 24 20 2 - - -85 -32 30 - - 1 5 - - mV mV dB V V mV mV
- - - - - - -
Pilot indicator logic level output (pin 18) V18 I18 MUTEatt LOW voltage HIGH current 250 - 400 1 - 0.2 400 mV A
Muting (pin 8) mute attenuation (pin 8) 80 - - dB dB mV
Noise interference detector Vtrigg trigger threshold (pin 6)
1996 Sep 02
7
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
Notes 1. Intermodulation suppression [Beat Frequency Components (BFC)]: V o(signal) ( at 1 kHz ) IM2 = ------------------------------------------------------- ; f s = ( 2 x 10 kHz ) - 19 kHz V o(spurious) ( at 1 kHz ) V o(signal) ( at 1 kHz ) IM3 = ------------------------------------------------------- ; f s = ( 3 x 13 kHz ) - 38 kHz V o(spurious) ( at 1 kHz ) measured with 91% mono signal; fmod = 10 kHz or 13 kHz; 9% pilot signal. 2. ARI suppression: V o(signal) ( at 1 kHz ) 57 ARI = ---------------------------------------------------------------------------V o(spurious) ( at 1 kHz 23 Hz ) measured with 91% stereo signal; fmod = 1 kHz; 9% pilot signal; 5% ARI subcarrier (fs = 57 kHz; fmod = 23 Hz; AM m = 0.6). 3. Subsidiary Communication Authorization (SCA): V o(signal) ( at 1 kHz ) 67 = ------------------------------------------------------- ; f s = ( 2 x 38 kHz ) - 67 kHz V o(spurious) ( at 9 kHz )
TDA1591
measured with 81% mono signal; fmod = 1 kHz; 9% pilot signal; 10% SCA subcarrier (fs = 67 kHz, unmodulated). 4. Adjacent Channel Interference (ACI): V o(signal) ( at 1 kHz ) 114 = ------------------------------------------------------- ; f s = 110 kHz - ( 3 x 38 kHz ) V o(spurious) ( at 4 kHz ) V o(signal) ( at 1 kHz ) 190 = ------------------------------------------------------- ; f s = 186 kHz - ( 5 x 38 kHz ) V o(spurious) ( at 4 kHz ) measured with 90% mono signal; fmod = 1 kHz; 9% pilot signal; 1% spurious signal (fs = 110 kHz or 186 kHz, unmodulated).
1996 Sep 02
8
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
TDA1591
handbook, full pagewidth
4
MEH029
Vi MPX(p-p) (V)
2
0
0
100
200
R1 (k)
300
Fig.3 Input signal as a function of series input resistor R1.
handbook, halfpage
6
MEH030
G (dB) 4
handbook, halfpage
50
MEH031
cs (dB)
40
2 30 0 20 -2 -4 10
-6
0
20
40 R2, R3 (k) 60
0 -200
-100 0 control voltage V16-17 (mV)
Fig.4
Overall signal gain as a function of feedback resistors R2 and R3 (R1 = 150 k).
Fig.5 Stereo blend characteristic (SNC).
1996 Sep 02
9
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
TDA1591
handbook, full pagewidth
50
MEH032
cs (dB)
(1)
40
30
20
(2)
10
0 10
102
103
104
foAF (Hz)
105
(1) Coupling capacitor CK at pin 20 = 10 F. (2) Coupling capacitor CK at pin 20 = 0.1 F.
Fig.6 Channel separation as a function of audio frequency.
handbook, full pagewidth
2
MEH033
VoAF (dB)
(1)
0
-2
(2)
-4
-6
-8
-10 10 (1) V15-17 = 0. (2) V15-17 = -300 mV.
102
103
foAF (Hz)
104
Fig.7 HCC as a function of audio frequency (pin 7 connected to GND; without pre-emphasis).
1996 Sep 02
10
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
TDA1591
handbook, full pagewidth
0
MEH034
Vo (dB) -2
-4
-6
-8
-10 -300
-200
-100
control voltage V15-17 (mV)
0
Fig.8 HCC with fmod = 10 kHz.
1996 Sep 02
11
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
TEST INFORMATION
TDA1591
handbook, full pagewidth
76.5
101.5
GND
HCC
SNC
Vref
PIL
12 k 10 k
MONO MPX IN
470 k 27 k 27 k 100 k 100 k 100 nF 100 nF 6.8 nF 6.8 nF 47 k 47 k 220 nF 220 nF
VP
AUX IN
68 k 82 k
AF OUT
TDA1591
1
CSB456F11 27 k
220 nF 100 k 100 nF 10 100 F 470 470 pF pF 47 k 47 k 47 nF 220 nF
AF OUT
Intf IN
220 22 nF nF
2.2 k 1.2 nF
AUX IN
VCO MUTE OFF
MHA364
Dimensions in mm.
Fig.9 TDA1591 test board (component side).
1996 Sep 02
12
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
PACKAGE OUTLINES DIP20: plastic dual in-line package; 20 leads (300 mil)
TDA1591
SOT146-1
D seating plane
ME
A2
A
L
A1
c Z e b1 b 20 11 MH wM (e 1)
pin 1 index E
1
10
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 4.2 0.17 A1 min. 0.51 0.020 A2 max. 3.2 0.13 b 1.73 1.30 0.068 0.051 b1 0.53 0.38 0.021 0.015 c 0.36 0.23 0.014 0.009 D
(1)
E
(1)
e 2.54 0.10
e1 7.62 0.30
L 3.60 3.05 0.14 0.12
ME 8.25 7.80 0.32 0.31
MH 10.0 8.3 0.39 0.33
w 0.254 0.01
Z (1) max. 2.0 0.078
26.92 26.54 1.060 1.045
6.40 6.22 0.25 0.24
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT146-1 REFERENCES IEC JEDEC EIAJ SC603 EUROPEAN PROJECTION
ISSUE DATE 92-11-17 95-05-24
1996 Sep 02
13
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
TDA1591
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
D
E
A X
c y HE vMA
Z 20 11
Q A2 A1 pin 1 index Lp L 1 e bp 10 wM detail X (A 3) A
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 2.65 0.10 A1 0.30 0.10 A2 2.45 2.25 A3 0.25 0.01 bp 0.49 0.36 c 0.32 0.23 D (1) 13.0 12.6 0.51 0.49 E (1) 7.6 7.4 0.30 0.29 e 1.27 0.050 HE 10.65 10.00 0.42 0.39 L 1.4 0.055 Lp 1.1 0.4 0.043 0.016 Q 1.1 1.0 0.043 0.039 v 0.25 0.01 w 0.25 0.01 y 0.1 0.004 Z
(1)
0.9 0.4 0.035 0.016
0.012 0.096 0.004 0.089
0.019 0.013 0.014 0.009
8 0o
o
Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. OUTLINE VERSION SOT163-1 REFERENCES IEC 075E04 JEDEC MS-013AC EIAJ EUROPEAN PROJECTION
ISSUE DATE 92-11-17 95-01-24
1996 Sep 02
14
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used. This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our "IC Package Databook" (order code 9398 652 90011). DIP SOLDERING BY DIPPING OR BY WAVE The maximum permissible temperature of the solder is 260 C; solder at this temperature must not be in contact with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds. The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg max). If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. REPAIRING SOLDERED JOINTS Apply a low voltage soldering iron (less than 24 V) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 C, contact may be up to 5 seconds. SO REFLOW SOLDERING Reflow soldering techniques are suitable for all SO packages. Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement.
TDA1591
Several techniques exist for reflowing; for example, thermal conduction by heated belt. Dwell times vary between 50 and 300 seconds depending on heating method. Typical reflow temperatures range from 215 to 250 C. Preheating is necessary to dry the paste and evaporate the binding agent. Preheating duration: 45 minutes at 45 C. WAVE SOLDERING Wave soldering techniques can be used for all SO packages if the following conditions are observed: * A double-wave (a turbulent wave with high upward pressure followed by a smooth laminar wave) soldering technique should be used. * The longitudinal axis of the package footprint must be parallel to the solder flow. * The package footprint must incorporate solder thieves at the downstream end. During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured. Maximum permissible solder temperature is 260 C, and maximum duration of package immersion in solder is 10 seconds, if cooled to less than 150 C within 6 seconds. Typical dwell time is 4 seconds at 250 C. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. REPAIRING SOLDERED JOINTS Fix the component by first soldering two diagonallyopposite end leads. Use only a low voltage soldering iron (less than 24 V) applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 C. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 C.
1996 Sep 02
15
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values
TDA1591
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
1996 Sep 02
16
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
NOTES
TDA1591
1996 Sep 02
17
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
NOTES
TDA1591
1996 Sep 02
18
Philips Semiconductors
Product specification
PLL stereo decoder and noise blanker
NOTES
TDA1591
1996 Sep 02
19
Philips Semiconductors - a worldwide company
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For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 (c) Philips Electronics N.V. 1996
Internet: http://www.semiconductors.philips.com
SCA51
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
517021/1200/02/pp20
Date of release: 1996 Sep 02
Document order number:
9397 750 00921

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