CXA2557 View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA2557

RF Amplifier for CD Player/CD-ROM

Sony Semiconductor 

Pin

No.

Symbol

I/O

36 APC ON I

Equivalent circuit

124

40k

36

100k

10k

40k

80k

CXA2557R

Description

Switching pin for RF DC

amplifier offset setting.

No addition to RF DC amplifier

when Medium (VC).

VCC/6 added to RF DC amplifier

when Low (GND).

80k

20k

40k 10k

37

MIRR

CNT

I

37

12k

12k

38 FE CNT I

38

21k

21k

39 TE CNT I

39

21k

21k

40 AL CNT I

40

21k

21k

–9–

Mirror circuit LPF cut-off

frequency setting input.

Focus error amplifier gain

adjustment input.

Tracking error amplifier gain

adjustment input.

Alignment amplifier gain

adjustment input.

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