adau1381 Analog Devices, Inc., adau1381 Datasheet - Page 78

• Manufacturer Part Number: adau1381
• Description: Low-noise Stereo Codec With Enhanced Recording And Playback Processing
• Manufacturer: Analog Devices, Inc.

ADAU1381
Register 16513 (0x4081), Digital Power-Down 1
Bit 3, Output Precharge
The output precharge system allows the outputs to be biased before
they are enabled and prevents pops or clicks from appearing on
the output. This bit should be set to 1 at all times.
Bit 2, Zero-Crossing Detector
Setting this bit to 0 disables the zero-crossing detector for beep
playback.
Table 66. Digital Power-Down 1 Register
Bits
[7:4]
3
2
1
0
Description
Reserved
Output precharge
0: disabled
1: enabled
Zero-crossing detector
0: disabled
1: enabled
Digital microphone
0: disabled
1: enabled
DAC engine
0: disabled
1: enabled
Rev. A | Page 78 of 84
Bit 1, Digital Microphone
Setting this bit to 0 disables the digital microphone input.
Bit 0, DAC Engine
Setting this bit to 0 disables the DACs.
Default
1
1
0
0