CXA1992AR 查看數據表（PDF） - Sony Semiconductor

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CXA1992AR

RF Signal Processing Servo Amplifier

Sony Semiconductor 

CXA1992AR

Pin

No.

Symbol

I/O

Equivalent circuit

Description

17 ISET

I

147

17

Connect an external capacitance to

set the current which determines

the Focus search, Track jump, and

Sled kick heights.

50µ

18 VCC

I

19 LOCK

I

20 CLK

I

22 DATA

I

21 XLT

I

23 XRST

I

18

VCC

20µ

19

147 1k

20

22

20µ

147 2k

21

23

5p

Positive power supply.

The sled overrun prevention circuit

operates when this pin is Low.

(no pull-up resistance)

Serial data transfer clock input from

CPU. (no pull-up resistance)

Serial data input from CPU.

(no pull-up resistance)

Latch input from CPU.

(no pull-up resistance)

Reset input; resets at Low.

(no pull-up resistance)

24 C. OUT O

25 SENS1 O

26 SENS2 O

24

20k

147

25

26

100k

Track number count signal output.

Outputs FZC, DFCT1, TZC, BALH,

TGH, FOH, ATSC, and others

according to the command from CPU.

Outputs DFCT2, MIRR, BALL, TGL,

FOL, and others according to the

command from the CPU.

27 FOK

O

20k

147

27

40k

100k

Focus OK comparator output.

–5–

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