AK2301A データシートの表示（PDF） - Asahi Kasei Microdevices

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AK2301A

3.3V Single channel PCM CODEC LSI

Asahi Kasei Microdevices 

ASAHI KASEI

RESET and Start up sequence

AK2301A

Reset operation starts by low input.

This function is used for the initialization at the power up. Please use MUTEN together with RSTN to

avoid the popping sound from the output until the AK2301A moves into the stable operation.

- Start up sequence

(1) After the power on, please set the RSTN pin to low level for 10msec or more.

(2) Before the first sequence or less than 250µs after the cancellation of reset, please provide the FS and

the BCLK.

(3) Please set the MUTEN pin to low level during the period of the AK2301A’s initialization which is

less than 200msec after the FS and the BCLK provided. The CODEC voice path is established by

releasing the mute function.

VDD 0.9VDD

less than250usec

10msec or more

200msec or more

RSTN

FS

(1)

(2)

BCLK

MUTEN

(3)

<MS0300-E-00>

17

2004/3

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