LA74303FN 查看數據表（PDF） - SANYO -> Panasonic

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LA74303FN

Audio Interface for DSC

SANYO -> Panasonic 

LA74303FN

POWER ON Condition (SERIAL communication)

H

VCCA (9PIN)

&

STANDBY (4PIN)

L

H

Power-on pulse

(IC inside)

L

Approx.

2ms

c

d

Dummy DATA

It is recommended to send DATA

the same as in the initial state.

Main DATA

2 to 3ms

1ms

C.S.

e

1ms

First Data

communication

Delay of several hundreds NS

Approx. 500ns

Power on reset

(IC inside)

Power on reset condition

First DATA hold

f

SERIAL communication condition

CLOCK and DATA not necessary

CS, CLOCK, and DATA necessary

The POWER ON RESET state covers a period up to the rise e of the second C.S. input after fall d of POWER ON

PULSE c generated inside IC when the power is applied and the STANDBY control is canceled. e is the dummy

communication. (It is recommended to send DATA the same as in the initial state.)

Actually, because of delay of several hundreds ns in the IC, the first DATA condition begins in f and the normal

SERIAL communication condition begins after f.

No.A1181-5/18

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