FEDL2280XFULL-04

ML22808/ML22804/Ml22802-XXX

3.

PDWN1 command

• command

0

0

1

0

⎯

⎯

⎯

⎯

The PDWN1 command is used to shift the ML22804/ML22808-xxx from a command wait state (both NCR and

BUSY are “H”) to a power down state. However, this command is disabled during playback.

To resume playback after the ML22804/ML22808-xxx has shifted to the power down state, first input the PUP1

or PUP2 command and then input the PLAY command.

CS

Status

Command is being

processed

Power down

SCK

DI

NCR

BUSY

Awaiting command

XT

•XT

Oscillating

Oscillation

stopped

AOUT

GND

1V

After the PDWN1 command is input and after an elapse of command processing time, the oscillation stops and

the AOUT output abruptly changes from approx. 1 V level to GND level.

This abrupt change in the AOUT

output will cause generation of pop noise if the AOUT output is not processed outside.

To suppress pop noise,

input the PDWN2 command.

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