SAA7374 查看數據表（PDF） - Philips Electronics

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SAA7374

Low voltage digital servo processor and Compact Disc decoder (CD7LV)

Philips Electronics 

Philips Semiconductors

Low voltage digital servo processor and

Compact Disc decoder (CD7LV)

Product specification

SAA7374

PARAMETER

radcontrol

chip_init

xtra_preset

RAM

ADDRESS

59H

−

4AH

AFFECTS

watchdog

set-up

set-up

cd6cmd

interrupt_mask

seq_control

focus_start_time

motor_start_time1

motor_start_time2

radial_init_time

brake_time

RadCmdByte

osc_inc

phase_shift

level1

level2

agc_gain

4DH

53H

42H

5EH

5FH

60H

61H

62H

63H

68H

67H

69H

6AH

6CH

decoder interface

STATUS pin

autosequencer

autosequencer

autosequencer

autosequencer

autosequencer

autosequencer

autosequencer

focus/radial AGC

focus/radial AGC

focus/radial AGC

focus/radial AGC

focus/radial AGC

POR

VALUE

−

−

38H

−

−

−

−

−

−

−

−

−

−

−

−

−

−

DETERMINES

enable/disable automatic radial off feature

VRH level setting

enable/disable decoder interface

laser on/off

RA, FO and SL PDM modulating frequency

microcontroller communication to decoder

part

decoder part commands

enabled interrupts

autosequencer control

focus start time

motor start 1 time

motor start 2 time

radial initialization time

brake time

radial command byte

AGC control

frequency of injected signal

phase shift of injected signal

amplitude of signal injected

amplitude of signal injected

focus/radial gain

1998 Feb 26

42

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