cxa1982q Sony Electronics, cxa1982q Datasheet - Page 16

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cxa1982q

Manufacturer Part Number
cxa1982q
Description
Rf Signal Processing Servo Amplifier For Cd Players
Manufacturer
Sony Electronics
Datasheet
Center Voltage Generation Circuit
(Single voltage application; Connect to GND when it’s positive/negative dual power supplies.)
Maximum current is approximately ±3mA. Output impedance is approximately 50 .
APC Circuit
When driving a constant current, the optical output by the laser diode possesses large negative temperature
characteristics. Therefore, the current must be controlled with the monitor photo diode to ensure the output
remains constant.
PD
34
100k
27k
Vcc
V
130k
33k
EE
1.25V
15k
2k
– 16 –
80k
50
60k
VC
4k
8k
48
VC
1k
33
100µ
/6.3V
LD
GND
Vcc
LD
10µH
PD
CXA1982Q
V
EE

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