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ES9219C 数据表(PDF) 37 Page - ESS Technology,Inc

部件名 ES9219C
功能描述  32-bit Stereo Low Power DAC with Headphone Amplifier, Analog Volume Control, and Output Switch
PDF  67 Pages
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制造商  ESS [ESS Technology,Inc]
网页  http://www.esstech.com
标志 ESS - ESS Technology,Inc

ES9219C 数据表(HTML) 37 Page - ESS Technology,Inc

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ES9219 Datasheet
CONFIDENTIAL ADVANCE INFORMATION 1.0.4
February 27, 2020
37
ESS TECHNOLOGY, INC. 237 South Hillview Drive, Milpitas, CA 95035, USA Tel (408) 643-8800 • Fax (408) 643-8801
Register 4: AUTOMUTE TIME
I2C Slave Access:
I2S Sync Slave Access:
Clock Domain:
Bits
[7:0]
Mnemonic
AUTOMUTE_TIME
Bits
Mnemonic
Description
[7:0]
AUTOMUTE_TIME
Configures the amount of time the audio data must remain below the automute_level before an automute
condition is flagged. Defaults to 0 which disables automute.
Note: DATA_CLK should be provided with a unit of Hz
���������������� �������� ���������������������������� =
2096896
������������������������������������������������ ∗ ����������������������������
Register 5: AUTOMUTE LEVEL
I2C Slave Access:
I2S Sync Slave Access:
Clock Domain:
Bits
[7]
[6:0]
Mnemonic
RESERVED
AUTOMUTE_LEVEL
Bits
Mnemonic
Description
[7]
RESERVED
NA
[6:0]
AUTOMUTE_LEVEL
Configures the threshold which the audio must be below before an automute condition is flagged.
The level is measured in decibels (dB) and defaults to -104dB.
Note: This register works in tandem with automute_time to create the automute condition.
Register 6: DOP AND VOLUME RAMP RATE
I2C Slave Access:
I2S Sync Slave Access:
Clock Domain:
Bits
[7:4]
[3]
[2:0]
Mnemonic
RESERVED
DOP_ENABLE
VOLUME_RATE
Bits
Mnemonic
Description
[7:4]
RESERVED
NA
[3]
DOP_ENABLE
Selects whether the DSD over PCM (DoP) logic is enabled.
1’b0: disables the DoP logic (default).
1’b1: enables the DoP logic.
[2:0]
VOLUME_RATE
Selects a volume ramp rate to use when transitioning between different volume levels.
The volume ramp rate is measured in decibels per second (dB/s).
���������������� (
��������
����
) =
0.0078125 ∗ ��������
2(2−����������������������������������������)



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