ADAU1381BCPZ Analog Devices Inc, ADAU1381BCPZ Datasheet - Page 78

• Manufacturer Part Number: ADAU1381BCPZ
• Description: IC AUDIO CODEC STEREO LN 32LFCSP
• Manufacturer: Analog Devices Inc
• Type: Stereo Audior

Specifications of ADAU1381BCPZ

• Data Interface: Serial, SPI™
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: No
• S/n Ratio, Adcs / Dacs (db) Typ: 97 / 100
• Dynamic Range, Adcs / Dacs (db) Typ: 96.5 / 100
• Voltage - Supply, Analog: 1.8 V ~ 3.65 V
• Voltage - Supply, Digital: 1.63 V ~ 3.65 V
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN, CSP Exposed Pad
• Audio Codec Type: Stereo
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 3
• No. Of Output Channels: 3
• Adc / Dac Resolution: 24bit
• Adcs / Dacs Signal To Noise Ratio: 100dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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. B | 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