HA12188AF データシートの表示（PDF） - Hitachi -> Renesas Electronics

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HA12188AF

Pre-amplifier and servo IC for quadruple-speed CD-ROM

Hitachi -> Renesas Electronics 

Pin Descriptions and Equivalent Circuits

Pin No. Symbol Equivalent Circuit

1

FH

470 k

3

TH

2

TSI

56

FSI

4

FLS

90 k

5

FLS

30 k

6

SGND —

7

FPS

8

FPS

9

FSA

20 k

10

FS1

11

TLS

20 k

33 k

HA12188AF

Function

Focus error hold signal output

Tracking error hold signal output

Tracking servo input

Focus servo input

Focus-servo low-frequency filter

resistor & capacitor connection

(FLS on)

Focus-servo low-frequency filter

capacitor connection (FLS off)

Servo ground

Resistor connection for programming

focus-servo phase compensation

(FPS off)

Resistor connection for programming

focus-servo phase compensation

(FPS on)

Focus servo output

FS1 voltage output

Tracking servo low-frequency filter

capacitor connection (TLS off)

Rev.1, Oct. 1995, page 3 of 35

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