ES9219C datasheet(39/67 Pages) ESS

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ES9219 Datasheet

CONFIDENTIAL ADVANCE INFORMATION 1.0.4

February 27, 2020

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

I2C Slave Access:

I2S Sync Slave Access:

Clock Domain:

Bits

[7]

[6:5]

[4]

[3:0]

Mnemonic

MASTER_MODE

MASTER_DIV

128fs_MODE

LOCK_SPEED

Bits

Mnemonic

Description

[7]

MASTER_MODE

Enables master mode which causes the Sabre to drive the DATA_CLK and DATA1 signals when in I2S mode

Can also be enabled when in DSD mode to enable DATA_CLK only.

1’b0: Disables master mode (default).

1’b1: Enables master mode.

[6:5]

MASTER_DIV

Sets the frame clock (DATA1) and DATA_CLK frequencies when in master mode.

This register is used when in normal synchronous operation.

2’b00: DATA_CLK frequency = MCLK/2 (default).

2’b01: DATA_CLK frequency = MCLK/4.

2’b10: DATA_CLK frequency = MCLK/8.

2’b11: DATA_CLK frequency = MCLK/16.

[4]

128fs_MODE

Enables operation of the DAC while in synchronous mode with a 128*fs MCLK.

1’b0: Disables MCLK = 128*fs mode (default).

1’b1: Enables MCLK = 128*fs mode.

[3:0]

LOCK_SPEED

Sets the number of audio samples required before the DPLL and ASRC lock to the incoming signal.

More audio samples give a better initial estimate of the MCLK/FS ratio at the expense of a longer locking

interval.

4’d0: 16384 FS edges

4’d1: 8192 FS edges

4’d2: 5461 FS edges (default)

4’d3: 4096 FS edges

4’d4: 3276 FS edges

4’d5: 2730 FS edges

4’d6: 2340 FS edges

4’d7: 2048 FS edges

4’d8: 1820 FS edges

4’d9: 1638 FS edges

4’d10: 1489 FS edges

4’d11: 1365 FS edges

4’d12: 1260 FS edges

4’d13: 1170 FS edges

4’d14: 1092 FS edges

4’d15: 1024 FS edges

I2C Slave Access:

I2S Sync Slave Access:

Clock Domain:

Bits

[7]

[6:4]

[3:0]

Mnemonic

OC_SD_EN

OC_SD_GAIN

RESERVED

Bits

Mnemonic

Description

[7]

OC_SD_EN

Enable an automatic detection circuit to mute the DAC (and disable the headphone amplifier) when an overcurrent

event is detected.

1’b0: Automatic overcurrent shutdown is disabled (default).

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