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AS3418

Datasheet

• PUBLIC

DS000507

• v4-00 • 2020-Jan-23

│ 68

7.2.6

Operation Mode Control Register

Figure 92:

MODE_SWITCH_CONTROL Register Description

Addr: 0x1A

MODE_SWITCH_CONTROL

Bit

Bit Name

Default

Access

Bit Description

6:5

SHUTDOWN_

DELAY

R/W

This register controls the shutdown delay function of

AS3418.

00: 10ms(default after reset)

01: 80ms

10: 200ms

11: 400ms

3:2

MODE_SWIT

CH_DELAY

R/W

Defines the time switching from ANC to PBO and

PBO to MONITOR operation mode. During this mode

switching delay the headphone amplifier multiplexer

is not connected to any source.

00: 5ms

01: 100ms

10: 200ms

11: 400ms

GAIN_JUMP_

UP_EN

R/W

This bit is independent of AGC_EN bit. The gain after

a gain register write is not immediately set but is

stepped up from old to new value if it is lower than

the old gain setting. Gain change will follow

AGC_RELEASE_TIME register setting.

0: Gain Jump up disabled

1: The gain is immediately set after a gain register

write if it is higher than the old gain setting

GAIN_JUMP_

DOWN_EN

R/W

This bit is independent of AGC_EN bit. The gain after

a gain register write is not immediately set but is

stepped down from old to new value if it’s lower than

the old gain setting. Gain change will follow

AGC_ATTACK_TIME register setting.

0: Gain Jump down disabled

1: Gain jump down enabled

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