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CXA3071N
Read/Write Amplifier (with Built-in Filters) for FDDs For the availability of this product, please contact the sales office.
Description The CXA3071N is a monolithic IC designed for use with three-mode Floppy Disk Drives, and contains a read circuit (with a four-mode filter system), a write circuit, an erase circuit, and a supply voltage detection circuit, all on a single chip. Features * Single 5V power supply * All filter, write current and other characteristics can be set with a single external resistor. * Filter system can be switched among four modes: 1M, 1.6M/2M, which are each inner track/outer track. * Filter characteristics can be set to Chebyshev (1dB ripple) for 1.6M, 2M/inner track only, and to Butterworth for the other modes and a custom selection can be made between Chebyshev (1dB ripple) and Butterworth for 1.6M, 2M/inner track only. * 1M/outer track f0 and the fc ratio for each mode can be customized. * Preamplifier voltage gain can be set to 45dB or 48dB by switching the filter mode and inner/outer track. * Preamplifier and filter output are monitored with the same pins. These pins are normally set to filter output, but the preamplifier output can be monitored by temporarily setting the SETR pin (Pin 20) to Low. * Time domain filter can be switched between two modes: 1M, 1.6M/2M. In addition, the pulse width can be customized. * Write current can be switched among six modes according to the mode and inner/outer track setting. The current value can be customized for each mode. * Erase current remains constant, and the current value can be customized. * Damping resistor can be built in. Resistor can be customized between 2k and 15k in 1k steps. * Supply voltage detection circuit 20 pin SSOP (Plastic)
Applications Three-mode FDDs Structure Bipolar silicon monolithic IC Absolute Maximum Ratings (Ta = 25C) * Supply voltage VCC 7.0 V * Digital signal input pin voltage -0.5 to VCC + 0.3 V * Power ON output applied voltage VCC + 0.3 V * Erase output applied voltage VCC + 0.3 V * Write head applied voltage 15 V * Power ON output current 7 mA * Operating temperature Topr -20 to +75 C * Storage temperature Tstg -65 to +150 C * Allowable power dissipation PD 375 mW Operating Conditions Supply voltage
4.4 to 6.0
V
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
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E96146B8Z
CXA3071N
Block Diagram and Pin Configuration
SETR
X360
XHD
OTF
VCC
XS1
XEG
WG
20
19
18
17
16
15
14
13
12
RD
11
WRITE DRIVER
CONTROL LOGIC
TIME DOMAIN FILTER
COMP
PREAMP
FILTER DIFF + LPF (BPF)
ERASE DRIVER
POWER MONITOR
1
2
3
4
5
6
7
8
9
10
-2-
MONITORA
MONITORB
PONOUT
HEAD1A
HEAD1B
HEAD0A
HEAD0B
ERA0
ERA1
GND
XWD
CXA3071N
Pin Description Pin No. 1 Symbol HEAD1A Pin voltage
1 2
Equivalent circuit
3 4
Description
-- Magnetic head inputs/outputs. Connect the recording/playback magnetic head to these pins, and connect the center tap to VCC. When the logical voltage for Pin 15 (XS1) is Low, the HEAD1 system is active; when the logical voltage is High, the HEAD0 system is active.
GND
2
HEAD1B
--
3
HEAD0A
--
4 5
HEAD0B GND
-- --
VCC
GND connection.
6
ERA0
--
6 7
Erase output for the HEAD0 system.
7
ERA1
--
GND VCC 100k 100k 8
Erase output for the HEAD1 system.
8
PON OUT
--
Reduced voltage detection output. This is an open collector that outputs a low signal when VCC is below the specified value.
GND
9
MONITORA
4.0V during filter output 3.4V during preamplifier output 4.0V during filter output
VCC 500 500 9 10
MONITOR differential outputs. These pins are set to filter output during normal read mode, but the preamplifier output can be monitored by temporarily setting Pin 20 (SETR) to Low.
10
MONITORB
3.4V during preamplifier output
GND
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CXA3071N
Pin No.
Symbol
Pin voltage
Equivalent circuit
VCC
Description
11
XWD
--
1k 11 2.3V
Write data input. This pin is a Schmitttype input that is triggered when the logical voltage goes from High to Low.
GND
VCC 140
12
RD
--
12
Read data output. This pin is active when the logical voltage of the write gate signal and the erase gate signal is High.
GND
VCC
13
WG
0.5VCC during read
0.5 VCC
13 147
0.35 VCC
0.65 VCC GND
WG signal input. The write system becomes active when the logical voltage is High. The IC is in power saving mode when the logical voltage is Low. The read system becomes active when the logical voltage is Z.
14
XEG
--
XEG signal input. The erase system becomes active when the logical voltage is Low. Head side switching signal input. The HEAD1 system is active when the logical voltage is Low, and the HEAD0 system is active when the logical voltage is High, but only when the logical voltage for the WG signal is Z and of the XEG signal is High. Filter inner track/outer track mode control. Outer track mode is selected when the logical voltage is High. Filter, time domain filter and write current 1M/2M mode control. 1.6M/2M mode is selected when the logical voltage is Low. Filter, time domain filter and write current 1.6M/2M mode control. 1.6M mode is selected when the logical voltage is Low. Power supply (5V) connection.
15
XS1
--
14 15 16 1k 100k
VCC
16
OTF
--
17 18 2.1V GND
17
XHD
--
18 19
X360 VCC
-- --
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CXA3071N
Pin No.
Symbol
Pin voltage
Equivalent circuit
Description
VCC 1.2V 20 147
20
SETR
3.8V
Filter cutoff frequency, time domain filter 1st monostable multivibrator pulse width, read data, write current and erase current setting resistor connection. Connect the setting resistor R between this pin and VCC.
GND
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CXA3071N
Electrical Characteristics Current Consumption Item Symbol Conditions WG = "Z" (Ta = 25C, VCC = 5V) Measurement Measurement Min. Typ. Max. Unit circuit point -- -- -- -- 15.0 25.0 35.0 mA 11.0 17.0 23.0 mA
Current consumption ICCR in read mode
Current consumption ICCWE WG = "H", XEG = "L" in write/erase mode Current consumption in power saving ICCPS mode WG = "L"
--
--
--
1.2
2.0 mA
Power Supply Monitoring System Item Power supply ON/OFF detector threshold voltage Power ON output saturation voltage Symbol Conditions
(Ta = 25C) Measurement Measurement Min. Typ. Max. Unit circuit point -- -- 3.5 3.9 4.3 V
VTH VCC = 3.5V I = 1mA
VSP
--
--
--
--
0.5
V
Read System Item Preamplifier voltage gain 1M/outer track Preamplifier voltage gain 1M/inner track Preamplifier voltage gain 1.6M, 2M/ outer track Preamplifier voltage gain 1.6M, 2M/ inner track Preamplifier frequency response Preamplifier input conversion noise voltage Symbol Conditions f = 100kHz, OTF = "H", XHD = "H", X360 = "X" f = 100kHz, OTF = "L", XHD = "H", X360 = "X" Measurement Measurement circuit point 1 A, B
(Ta = 25C, VCC = 5V) Min. Typ. Max. Unit
GVLO
43.1 45.0
46.6
dB
GVLI
1
A, B
46.1 48.0
49.6
dB
GVHO
f = 100kHz, OTF = "H", XHD = "L", X360 = "X"
1
A, B
43.1 45.0
46.6
dB
GVHI
f = 100kHz, OTF = "L", XHD = "L", X360 = "X"
1
A, B
46.1 48.0
49.6
dB
BWO
GV/GV0 = -3dB
1
A, B
5
--
--
MHz
ENO
BW = 400Hz to 1MHz, VI = 0
1
A, B
--
2.0
2.9
nV/ Hz
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CXA3071N
Read System Item Filter output voltage amplitude Time domain filter monostable multivibrator pulse width Read data pulse width Symbol VOF X360 = "X", XHD = "H" (1M mode) T1 X360 = "X", XHD = "L" (1.6M/2M mode) Conditions
(Ta = 25C, VCC = 5V) Measurement Measurement Min. Typ. Max. Unit circuit point 1 1 1 1 IOL = 2mA IOH = -0.4mA RL = 2k CL = 20pF RL = 2k CL = 20pF VI = 0.25mVp-p to 3.5mVp-p X360 = "H", XHD = "L" OTF = "L" f = 125kHz, 2M/inner track mode 1 1 1 1 A, B C, D C, D D D D D D 1.4 -- -- Vp-p
2.25 2.50 2.75 s 1.16 1.29 1.42 s 300 400 500 -- 2.8 -- -- -- -- -- -- 0.5 -- 100 100 ns V V ns ns
T2
Read data output low VOL output voltage Read data output high output voltage Read data output1 rise time Read data output1 fall time VOH
tr tf
Peak shift2
PS
1
D
--
--
1
%
1 Read data output: 0.5V to 2.4V 2 Signal input level 1M, 1.6M, 2M/outer track: VI = 0.25mVp-p to 5mVp-p 1M, 1.6M, 2M/inner track: VI = 0.25mVp-p to 3.5mVp-p
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CXA3071N
External Comparator Output (Measurement point C)
Read data output (Measurement point D)
1.4V T1 T2 TA TB
Fig. 1. 1st and 2nd monostable multivibrator pulse width precision and peak shift measurement conditions * 1st monostable multivibrator pulse width precision When X360 = "X" and XHD = "H": ETM1 = ( T1 -1) x 100 [%] 2.5s
When X360 = "X" and XHD = "L": ETM1' = ( T1 -1) x 100 [%] 1.29s
* 2nd monostable multivibrator pulse width = T2 * Peak shift PS = 1 2 TA - TB TA + TB x 100 [%]
-8-
CXA3071N
Read System (Filters) Item Peak frequency 1M outer track Peak voltage gain3 Frequency response (1) Frequency response (2) Peak frequency 1M inner track Peak voltage gain3 Frequency response (1) Frequency response (2) Peak frequency 1.6M/ 2M outer track Peak voltage gain3 Frequency response (1) Frequency response (2) Peak frequency 1.6M/ 2M inner track Peak voltage gain3 Frequency response (1) Frequency response (2) Symbol Conditions WG = "Z", X360 = "X" XHD = "H" OTF = "H" Refer to Fig. 1 at f01 Refer to Fig. 1 at 1/3f01 Refer to Fig. 1 at 3f01 WG = "Z", X360 = "X" XHD = "H" OTF = "L" Refer to Fig. 1 at f02 Refer to Fig. 1 at 1/3f02 Refer to Fig. 1 at 3f02 WG = "Z", X360 = "X" XHD = "L" OTF = "H" Refer to Fig. 1 at f03 Refer to Fig. 1 at 1/3f03 Refer to Fig. 1 at 3f03 WG = "Z", X360 = "X" XHD = "L" OTF = "L" Refer to Fig. 1 at f04 Refer to Fig. 1 at 1/3f04 Refer to Fig. 1 at 3f04 Measurement Measurement circuit point 1 A, B
(Ta = 25C, VCC = 5V) Min. Typ. Max. Unit
fo1
165.6 184.0 202.4 kHz
Gp1 G11 G12
1 1 1
A, B A, B A, B
4.1 -7.4
6.0 -6.9
7.6 -6.4
dB dB
-24.9 -23.0 -21.4 dB
fo2
1
A, B
177.2 196.9 216.6 kHz
Gp2 G21 G22
1 1 1
A, B A, B A, B
4.1 -7.4
6.0 -6.9
7.6 -6.4
dB dB
-24.9 -23.0 -21.4 dB
fo3
1
A, B
311.3 345.9 380.5 kHz
Gp3 G31 G32
1 1 1
A, B A, B A, B
4.2 -7.4
6.1 -6.9
7.7 -6.4
dB dB
-25.3 -23.4 -21.8 dB
fo4
1
A, B
346.2 384.6 423.0 kHz
Gp4 G41 G42
1 1 1
A, B A, B A, B
5.8 -8.3
7.7 -7.8
9.3 -7.3
dB dB
-37.8 -35.9 -34.3 dB
3 Gpn = 20 Log10 (VFilterout/VPreout) VFilterout = Filter differential output voltage (N = 1 to 4).
-9-
CXA3071N
[dB]
Gpn Gn1 Gn2
1/3fon (n = 1 to 4)
fon
3fon
f [Hz]
Fig. 2. Filter frequency response measurement conditions
Write/Erase System Item Damping resistor precision Symbol RD Conditions VCC = 0V SW1 = b
(Ta = 25C, VCC = 5V) Measurement Measurement Min. Typ. Max. circuit point 2 2 2 2 2 2 2 2 2 A', B' C', D' A, B C, D A, B C, D A, B C, D A, B C, D A, B C, D A, B C, D A, B C, D A, B C, D A, B C, D E, F E, F -20 -- +20 Unit %
1M/outer track write WG = "H", OTF = "H" IWLO current XHD = "H", X360 = "X" 1M/inner track write IWLI current 1.6M/outer track write current 1.6M/inner track write current IWMO IWMI WG = "H", OTF = "L" XHD = "H", X360 = "X" WG = "H", OTF = "H" XHD = "L", X360 = "L" WG = "H", OTF = "L" XHD = "L", X360 = "L"
8.83 9.5 10.17 mA0-p 6.62 7.12 7.62 mA0-p 7.44 8.0 8.56 mA0-p 5.95 6.4 6.85 mA0-p 4.18 4.5 4.82 mA0-p 2.76 2.97 3.18 mA0-p -1 -- -- -- +1 10 % A
2M/outer track write WG = "H", OTF = "H" IWHO current XHD = "L", X360 = "H" 2M/inner track write IWHI current Write current output DW unbalance Head I/O pin leak current for writes ILKW WG = "H", OTF = "L" XHD = "L", X360 = "H" WG = "H" WG = "H" WG = "H", OTF = "H" XHD = "H", X360 = "X" VSW = 1V, SW2 = b XEG = "L" XEG = "L"
Write head pin ISW current at saturation Erase current IE
2 2 2
8.45 9.5 10.55 mA0-p 5.40 6.0 6.60 -- -- 10 mA A
Erase current output ILKE pin leak current
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CXA3071N
Logic Input Block Item Digital signal input low input voltage Digital signal input high input voltage Symbol VLD VHD Conditions Measurement Measurement circuit point 2 2 I, J, K, L, M I, J, K, L, M Min. -- 2.0
(Ta = 25C, VCC = 5V) Typ. -- -- Max. 0.8 -- Unit V V
Schmitt-type digital signal input low input VLSD voltage Schmitt-type digital signal input high input voltage WG pin digital signal input high input voltage WG pin digital signal input low input voltage Digital signal input low input current Digital signal input high input current VHSD
2
G
--
--
0.8
V
2
G
2.0
--
--
V
VMHD
2
H
0.7VCC
--
--
V
VMLD
2
H G, H, I, J, K, L, M G, H, I, J, K, L, M
--
--
0.3VCC
V
ILD IHD
VL = 0V VH = 5V
2 2
-100 --
-- --
-- 100
A A
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CXA3071N
Electrical Characteristics Measurement Circuit 1
D 5V
10k
b
ab SW5
ab SW4 17
ab SW3 16
a SW2 15 14 13 12 11
20
19
18
X360
XS1
OTF
VCC
WG
RD
SETR
HEAD0A
ERA0
1
2
3 b - 1 Vi 2
4
5
6
MONITORA
HEAD1A
HEAD0B
ERA1
7
8
9
10 3300p 12k C
SW1
b
a 1 Vi 2
a
MONITORB
HEAD1B
GND
PONOUT
XWD
XHD
XEG
3300p External Comparator
A
B
Note) Unless otherwise specified, switches are assumed to be set to "a". CR time constant of external comparator input stage is equivalent to the time constant of comparator input stage within the IC.
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CXA3071N
Electrical Characteristics Measurement Circuit 2
M
L
K
J
I
H
G
5V 10k
20
19
18
17
16
15
14
13
12
11
OTF
VCC
WG
SETR
X360
HEAD0A
1
2
3
4
5
6
ERA0
7
8
9
MONITORA
HEAD1A
HEAD0B
ERA1
10
SW1 a
b A'
a
b B'
a
b C'
a
b D'
A
B
C
D
SW2 VSW
a b
E
F
Note) Unless otherwise specified, switches are assumed to be set to "a".
- 13 -
MONITORB
HEAD1B
GND
PONOUT
XWD
XHD
XEG
XS1
RD
CXA3071N
Description of Operation (1) Read system Preamplifier The preamplifier amplifies input signals. The voltage gain can be switched depending on the settings of Pins 16, 17 and 18. Filter The filter differentiates the signals amplified by the preamplifier. The high-band noise components are attenuated by the low-pass filter. The filters can be switched among four modes, depending on the settings of Pins 16, 17 and 18. In 1M/outer track mode, the peak frequency f01 is fixed and used as a reference (1.00), and f0 for the other three modes is switched by the internal settings of the IC.
Active filter block
9 Preamplifier output BPF LPF HPF Amp 10 Secondary fOB = 1.2 x fC Q = 0.577 Tertiary fc: variable Primary fCH = 5kHz Gain: 8dB
MONITORA MONITORB
Filter block
The center frequency f0B of the BPF is fixed to 1.2 times the cutoff frequency f0 of the LPF. The LPF characteristics are set to Chebyshev (1dB ripple) for 1.6M, 2M/inner track mode only, and the Butterworth for all other modes. Pin16 OTF H L H L H L Pin17 XHD H H L L L L Pin18 X360 X X L L H H LPF characteristics 1M/outer track: Butterworth 1M/inner track: Butterworth 1.6M/outer track: Butterworth 1.6M/inner track: Chebyshev 1dB ripple 2M/outer track: Butterworth 2M/inner track: Chebyshev 1dB ripple f0 ratio 1.00 1.07 1.88 2.09 1.88 2.09
- 14 -
CXA3071N
Monitor switching
VCC refR 20 SETR REF AMP LATCH "L" pulse SW switching signal
FILTER PREAMP COMP
TDF
FILA PREA FILB PREB SW 10 MONITORB 9 MONITORA
Monitor block configuration
The monitor pins are used for both the preamplifier output and filter output. These pins are set to filter output during normal read mode, but the preamplifier output can be monitored by temporarily setting the SETR pin (Pin 20) to Low. The monitored contents are returned from the preamplifier output to the filter output by switching to write mode (WG = Z High). Note that the specifications for inputting a low signal to the SETR pin are the same as for the TTL input pin, but an open collector output (or open drain output) should be used while inputting the signal. SETR (Pin 20) Z MONITORA (Pin 9) FILOUTA PREOUTA MONITORB (Pin 10) FILOUTB PREOUTB Monitor mode Filter output Preamplifier output
- 15 -
CXA3071N
Comparator The comparator detects the crosspoint of the filter differential output. Time domain filter The time domain filter converts the comparator output to read data. This filter is equipped with two monostable multivibrators. 1st monostable multivibrator eliminates unnecessary pulses, and 2nd monostable multivibrator determines the pulse width of the read data. Note that the 1st monostable multivibrator pulse width T1 is fixed internally. T1 can be switched as follows by the settings of Pins 17 and 18: When XHD = "H" and X360 = "X": T1 (1M) = 2500 [ns] When XHD = "L" and X360 = "L" or XHD = "L" and X360 = "H": T1(1.6M/2M) = 1290 [ns] The pulse width for 2nd monostable multivibrator is fixed at 400 [ns]. (2) Write system Write data input through Pin 11 is frequency-divided by the T flip-flop and generates the recording current for the head. The recording current can be switched by the settings of Pins 17 and 18. Note that the write current IW is fixed internally for each mode. Furthermore, the inner/outer track write current IW can be changed for each mode by switching Pin 16. However, the current ratio between the inner and outer tracks is fixed. (3) Erase current The erase current IE is fixed internally. Pins 6 and 7 are constant current outputs. (4) Power ON/OFF detection system The power ON/OFF detection system detects a reduced voltage in the supply voltage. When VCC is below the specified value, the write system and erase system cease operation, disabling the write and erase functions.
Notes on Operation * Select the voltage gain so that the preamplifier output amplitude is 1Vp-p or less. If the preamplifier output amplitude exceeds 1Vp-p, the filter output waveform becomes distorted. * Observe the following point when mounting this device. * The GND should be as large as possible. * Connect a VCC decoupling capacitor of about 0.1F as close to the device as possible.
- 16 -
CXA3071N
Application Circuit
10k
SETR
X360
XHD
OTF
VCC
XS1
XEG
WG
20
19
18
17
16
15
14
13
RD
12
WRITE DRIVER
CONTROL LOGIC
TIME DOMAIN FILTER
COMP
PREAMP
FILTER DIFF + LPF (BPF)
ERASE DRIVER
POWER MONITOR
1
2
3
4
5
6
7
8
9
HEAD0B
VCC
Note) When using two modes (1M and 2M), connect X360 (Pin 18) to VCC and set XHD (Pin 17) high or low to switch modes.
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
- 17 -
MONITORA
MONITORB
PONOUT
HEAD1A
HEAD1B
HEAD0A
ERA0
ERA1
GND
XWD
11 10
CXA3071N
Filter Frequency Response The LPF characteristics are set to Chebyshev (1dB ripple) for 1.6M, 2M/inner track mode only, and to Butterworth for other modes. The 1.6M and 2M characteristics and fc ratio are identical.
B.P.F Q = 0.577 (Differential characteristics)
fOB
1M/outer track, inner track 1.6M, 2M/outer track L.P.F Tertiary Butterworth
1.6M, 2M/inner track L.P.F Tertiary Chebyshev 1dBRp (High-band noise cutoff)
fcn (n = 1, 2, 3)
fc4
(Comprehensive characteristics)
fon
fo4
The BPF center frequency f0B is fixed at 1.2 times the LPF cutoff frequency. f0B = 1.2fc In the comprehensive characteristics, the relationship between the peak frequencies f0 and fc is as follows, depending on the differences of the LPF type: Butterworth characteristics fcn = 1.28f0n (n = 1, 2, 3) Chebyshev (1dB ripple characteristics) fC4 = 1.09f04 - 18 -
CXA3071N
Custom Selection of Filters The LPF cutoff frequency fc in 1M/outer track mode can be customized. In addition, assuming the LPF cutoff frequency value as 1.00, the fc ratio can be selected for the other three modes. In addition, the LPF characteristics are set to Chebyshev (1dB ripple) for 1.6M, 2M/inner track mode only, and to Butterworth for the other modes. However, a custom selection can be made between Chebyshev (1dB ripple) and Butterworth for 1.6M, 2M/inner track mode only. (However, the 1.6M and 2M characteristics and fc ratio are identical.) Note that the BPF center frequency f0B is fixed at 1.2 times fc. Mode 1M/outer track 1M/inner track 1.6M, 2M/outer track 1.6M, 2M/inner track LPF type Butterworth Butterworth Butterworth Butterworth Chebyshev (1dB ripple) 1.0 1.07 , 1.14, 1.23, 1.33, 1.45, 1.60, 2.00 1.23, 1.33, 1.39, 1.45, 1.52, 1.60, 1.68, 1.78, 1.88 , 2.00, 2.13, 2.29, 2.46, 2.67 1.23, 1.33, 1.39, 1.45, 1.52, 1.60, 1.68, 1.78 , 1.88, 2.00, 2.13, 2.29, 2.46, 2.67 fc ratio when fC1 is assumed as 1
The boxed ratio indicates the setting for the CXA3071N.
Write Current Setting Method Assuming the outer track as 1.00, the write current ratio is fixed within the IC for each mode. The write current for the outer track is fixed within the IC. The setting is for the outer track current when OTF is High, and for the inner track current when OTF is Low. Track 1M mode 1.6M mode 2M mode Write current inner track setting ratio 1.00, 0.92, 0.86, 0.80, 0.75 , 0.71, 0.66, 0.63 1.00, 0.92, 0.86, 0.80 , 0.75, 0.71, 0.66, 0.63 1.00, 0.92, 0.86, 0.80 , 0.75, 0.71, 0.66 , 0.63
The boxed ratio indicates the setting for the CXA3071N.
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CXA3071N
Example of Representative Characteristics
Normalized preamplifier voltage gain and phase vs. Frequency
Normalized preamplifier voltage gain [dB]
180
Voltage gain 0
90 -4 Phase -8 -90 -12 VCC = 5V, Ta = 25C -180 -16 100k 1M f -- Frequency [Hz] 10M 0
1M/outer track
20 Phase 180 20
1M/inner track
Phase 180
Normalized filter voltage gain [dB]
0 Voltage gain 90 -20 0 -40 -90 -60 VCC = 5V, Ta = 25C R = 10k -80 10k 40k 100k 400k 1M 4M -180
Normalized filter voltage gain [dB]
0 Voltage gain -20 0 -40 -90 -60 VCC = 5V, Ta = 25C R = 10k -80 10k 40k 100k 400k 1M 4M -180 90
Phase [deg]
f01 = 184.0 [kHz] Frequency [Hz]
Phase [deg]
f02 = 196.9 [kHz] Frequency [Hz]
1.6M, 2M/outer track
20 Phase 180 20
1.6M, 2M/inner track
180
Normalized filter voltage gain [dB]
Normalized filter voltage gain [dB]
0 Voltage gain 90
0
Voltage gain Phase
90
Phase [deg]
-20 0 -40 -90 -60 VCC = 5V, Ta = 25C R = 10k -80 10k 40k 100k 400k 1M 4M -180
-20 0 -40 -90 -60 VCC = 5V, Ta = 25C R = 10k -80 10k 40k 100k 400k 1M 4M -180
f03 = 345.9 [kHz] Frequency [Hz]
f04 = 384.6 [kHz] Frequency [Hz]
- 20 -
Phase [deg]
Phase [deg]
CXA3071N
NGv -- Normalized preamplifier voltage gain + filter voltage gain
Normalized preamplifier voltage gain + filter voltage gain NGv vs. Ambient temperature Ta
1.50
NGv -- Normalized preamplifier voltage gain + filter voltage gain
Normalized preamplifier voltage gain + filter voltage gain NGv vs. Supply voltage Vcc
1.50
1.00
1.00
20 VCC = 5V f = 100kHz NGV = GV/GV (Ta = 25C) 0.50 -20 10k VCC 0 20 40 60 Ta -- Ambient temperature [C] 80
20 Ta = 25C f = 100kHz NGV = GV/GV (VCC = 5V) 0.50 4.0 5.0 Vcc -- Supply voltage [V] 6.0 10k VCC
Normalized filter peak frequency NfO vs. Ambient temperature Ta
1.05 1.05
Normalized filter peak frequency NfO vs. Supply voltage Vcc
NfO -- Normalized filter peak frequency
NfO -- Normalized filter peak frequency
1.00
1.00
20 VCC = 5V Nf0 = f0/f0 (Ta = 25C) 10k VCC 0 20 40 60 80 Ta -- Ambient temperature [C]
20 Ta = 25C Nf0 = f0/f0 (VCC = 5V) 10k VCC 0.95 4.0 5.0 Vcc -- Supply voltage [V] 6.0
0.95 -20
NT1 -- Normalized 1st monostable multivibrator pulse width
1.05
NT1 -- Normalized 1st monostable multivibrator pulse width
Normalized 1st monostable multivibrator pulse width NT1 vs. Ambient temperature Ta
Normalized 1st monostable multivibrator pulse width NT1 vs. Supply voltage Vcc
1.05
1.00
1.00
20 VCC = 5V NTA = T1/T1 (Ta = 25C) 10k VCC 0.95 -20 0 20 40 60 Ta -- Ambient temperature [C] 80
20 Ta = 25C NTA = T1/T1 (VCC = 5V) 10k VCC 0.95 4.0 5.0 Vcc -- Supply voltage [V] 6.0
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CXA3071N
Normalized read data pulse width NT2 vs. Ambient temperature Ta
1.05
Normalized read data pulse width NT2 vs. Supply voltage Vcc
1.05
NT2 -- Normalized read data pulse width
1.00
NT2 -- Normalized read data pulse width
1.00
20 VCC = 5V NTB = T2/T2 (Ta = 25C) 10k VCC 0 20 40 60 80 Ta -- Ambient temperature [C]
20 Ta = 25C NTB = T2/T2 (VCC = 5V) 10k VCC 4.0 5.0 Vcc -- Supply voltage [V] 6.0
0.95 -20
0.95
Normalized write current NIw vs. Ambient temperature Ta
1.05 1.05
Normalized write current NIw vs. Supply voltage Vcc
NIw -- Normalized write current
1.00
NIw -- Normalized write current
1.00
20 VCC = 5V NIW = IW/IW (Ta = 25C) 10k VCC 0.95 -20
20 Ta = 25C NIW = IW/IW (VCC = 5V) 10k VCC 0.95
0 20 40 60 Ta -- Ambient temperature [C]
80
4.0
5.0 Vcc -- Supply voltage [V]
6.0
Normalized erase current NIE vs. Ambient temperature Ta
1.05 1.05
Normalized erase current NIE vs. Supply voltage Vcc
NIE -- Normalized erase current
1.00
NIE -- Normalized erase current
1.00
20 VCC = 5V NIE = IE/IE (Ta = 25C) 10k VCC 0.95 -20
20 Ta = 25C NIE = IE/IE (VCC = 5V) 10k VCC 0.95
0
20
40
60
80
4.0
5.0 Vcc -- Supply voltage [V]
6.0
Ta -- Ambient temperature [C]
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CXA3071N
VTH -- Power supply ON/OFF detector threshold voltage [V]
Power supply ON/OFF detector threshold voltage VTH vs. Ambient temperature Ta
4.1
4.0
3.9
3.8
3.7
3.6 -20
0 20 40 60 Ta -- Ambient temperature [C]
80
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CXA3071N
Package Outline
Unit: mm
20PIN SSOP (PLASTIC)
6.5 0.1 + 0.2 1.25 - 0.1 0.1 20 11 A
4.4 0.1
1 + 0.1 0.22 - 0.05
10 0.65 0.12 + 0.05 0.15 - 0.02
0.1 0.1
0 to 10 DETAIL A NOTE: Dimension "" does not include mold protrusion.
PACKAGE STRUCTURE
PACKAGE MATERIAL SONY CODE EIAJ CODE JEDEC CODE SSOP-20P-L01 SSOP020-P-0044 LEAD TREATMENT LEAD MATERIAL PACKAGE WEIGHT EPOXY RESIN SOLDER / PALLADIUM PLATING COPPER / 42 ALLOY 0.1g
NOTE : PALLADIUM PLATING This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame).
- 24 -
0.5 0.2
6.4 0.2

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