ES9218PC datasheet(74/101 Pages) ESS

74 / 101 page

ES9218P Datasheet

December 6, 2018

CONFIDENTIAL ADVANCE INFORMATION 1.8

ESS TECHNOLOGY, INC. 237 South Hillview Drive, Milpitas, CA 95035, USA Tel (408) 643-8800 • Fax (408) 643-8801

Bits

[7]

[6:3]

[2]

[1]

[0]

Mnemonic

dig_over_en

reserved

sel1v

shtoutb

shtinb

Default

1’b0

4’b0000

1’b0

Bit

Mnemonic

Description

[7]

dig_over_en

Allows the digital core to override the amp_mode settings via the contents of register 45, 46

and 47.

•

1’b0: Uses the amp_mode setting to control the analog sections (default).

•

1’b1: Allows the digital core to override the amp_mode settings.

[6:3]

reserved

[2]

sel1v

Drops the digital power supply to 1V, which allows the supply to be driven externally.

•

1’b0: Use the internal digital power supply regulator (default).

•

1’b1: Lower the internal digital power supply voltage to 1V for use with external 1.2V

supply.

[1]

shtoutb

Controls the shunt on the output of the amplifier.

•

1’b0: Shunt on the output of the amplifier is engaged, allowing for protection against

clicks while configuring the amplifier (default).

•

1’b1: Shunt on the output of the amplifier is disengaged, allowing the amplifier to drive

an audio signal.

[0]

shtinb

Controls the shunt on the input of the amplifier.

•

1’b0: Shunt on the input of the amplifier is engaged, allowing for protection against

clicks while configuring the amplifier (default).

•

1’b1: Shunt on the input of the amplifier is disengaged.

ES9218PC 数据表(PDF) 74 Page - ESS Technology,Inc

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