CXA1782 View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA1782

RF Signal Processing Servo Amplifier for CD players

Sony Semiconductor 

CXA1782CQ/CR

Pin

No.

Symbol

I/O

Equivalent circuit

32k

37 FE_BIAS I

164k

37

25p

8µ

Description

Bias adjustment of focus error

amplifier.

38 F

39 E

12p

260k

F I-V and E I-V amplifier inverted

I

147

I

38

input.

Connect these pins to photo diodes

39

513

F and E.

10µ

40 EI

6.8k 102k 57k 28k

260k

—

40

20.3k

I-V amplifier E gain adjustment.

(When not using automatic balance

adjustment)

147

12k 23k 11k 4.8k

42 TEO

O

42

150k

10k

150k

Tracking error amplifier output.

E-F signal is output.

43 LPFI

I

147

43

Comparator input for balance

adjustment.

(Input from TEO through LPF)

–7–

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