HA12188AF Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HA12188AF

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

Hitachi -> Renesas Electronics 

HA12188AF

Pin Descriptions and Equivalent Circuits (cont)

Pin No.

12

Symbol

TLS

Equivalent Circuit

100 k

13

TPS

14

TPS

15

SVCC

—

16

TSA

22 k

17

TM2

Function

Tracking servo low-frequency filter

resistor & capacitor connection

(TLS on)

Resistor connection for programming

tracking servo phase compensation

(TPS off)

Resistor connection for programming

tracking servo phase compensation

(TPS on)

Servo power supply

Tracking servo output

Sled servo input

18

SSM

SSA amplifier inverting input

19

SSA

Sled servo output

Rev.1, Oct. 1995, page 4 of 35

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