ADAU1381BCPZ Analog Devices Inc, ADAU1381BCPZ Datasheet - Page 77

• 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

DIGITAL SUBSYSTEM CONFIGURATION
Register 16512 (0x4080), Digital Power-Down 0
Bit 7, ADC Engine
Setting this bit to 0 disables the ADCs and the digital micro-
phone inputs.
Bit 6, Memory Controller
Setting this bit to 0 disables all memory access, which disables
the sound engine, ADCs, and DACs, as well as prohibits memory
access via the control port.
Bit 5, Clock Domain Transfer
Setting this bit to 0—in conjunction with Bit 4, serial ports—
disables the serial ports.
Bit 4, Serial Ports
Setting this bit to 0—in conjunction with Bit 5, clock domain
transfer—disables the serial ports.
Table 65. Digital Power-Down 0 Register
Bit
7
6
5
4
3
2
1
0
Description
ADC engine
0: disabled
1: enabled
Memory controller
0: disabled
1: enabled
Clock domain transfer (when using the serial ports)
0: disabled
1: enabled
Serial ports
0: disabled
1: enabled
Serial output routing
0: disabled
1: enabled
Serial input routing
0: disabled
1: enabled
Serial port, ADC, DAC, and frame pulse clock generator
0: disabled
1: enabled
Sound engine
0: disabled
1: enabled
Rev. B | Page 77 of 84
Bit 3, Serial Output Routing
Setting this bit to 0 disables the routing paths for the record signal
path, which goes from the sound engine to the serial port output.
Bit 2, Serial Input Routing
Setting this bit to 0 disables the routing paths for the play-
back signal path, which goes from the serial input ports to the
sound engine.
Bit 1, Serial Port, ADC, DAC, and Frame Pulse Clock
Generator
Setting this bit to 0 disables the internal clock generator, which
generates all master clocks for the serial ports, sound engine,
ADCs, and DACs. This bit must be enabled if audio is being
passed through the ADAU1381.
Bit 0, Sound Engine
Setting this bit to 0 disables the sound engine and makes the
memory inaccessible. This bit must be enabled in order to
process audio and change parameter values.
Default
0
0
0
0
0
0
0
0
ADAU1381