ADAU1961 Automotive Stereo, Low Power, 96 kHz, 24-Bit Audio Codec with Integrated PLL

Automotive head units Automotive amplifiers Navigation systems Rear-seat entertainment systems

The ADAU1961 is a low power, stereo audio codec that supports stereo 48 kHz record and playback at 35 mW from a 3.3 V analog supply. The stereo audio ADCs and DACs support sample rates from 8 kHz to 96 kHz as well as a digital volume control.

The record path includes an integrated microphone bias circuit and six inputs. The inputs can be mixed and muxed before the ADC, or they can be configured to bypass the ADC. The ADAU1961 includes a stereo digital microphone input.

The ADAU1961 includes five high power output drivers (two differential and three single-ended), supporting stereo head-phones, an earpiece, or other output transducer. AC-coupled or capless configurations are supported. Individual fine level controls are supported on all analog outputs. The output mixer stage allows for flexible routing of audio.

The serial control bus supports the I2C and SPI protocols. The serial audio bus is programmable for I2S, left-/right-justified, and TDM modes. A programmable PLL supports flexible clock generation for all standard integer rates and fractional master clocks from 8 MHz to 27 MHz

Applications

Automotive head units
Automotive amplifiers
Navigation systems
Rear-seat entertainment systems

Features and Benefits

24-bit stereo audio ADC and DAC: >98 dB SNR

Sampling rates from 8 kHz to 96 kHz

Low power: 17 mW record, 18 mW playback, 48 kHz

6 analog input pins, configurable for single-ended or differential inputs

Flexible analog input/output mixers

Stereo digital microphone input

Analog outputs: 2 differential stereo, 2 single-ended stereo, 1 mono headphone output driver

PLL supporting input clocks from 8 MHz to 27 MHz

Analog automatic level control (ALC)

Microphone bias reference voltage

Analog and digital I/O: 3.3 V

I2C and SPI control interfaces

Digital audio serial data I/O: stereo and time-division multiplexing (TDM) modes

Software-controllable clickless mute

32-lead, 5 mm × 5 mm LFCSP

−40°C to +105°C operating temperature

Data Sheets

Document	note
ADAU1961: Stereo, Low Power, 96 kHz, 24-Bit Audio Codec with Integrated PLL Data Sheet (Rev. A)	PDF 864 kB

Application Notes

Document	note
AN-1006: Using the EVAL-ADUSB2EBZ (Rev. A)	PDF 349 kB

User Guides

Document	note
UG-119: Evaluation Board User Guide for ADAU1361	PDF 653 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADAU1961WBCPZ Production	32 ld LFCSP (5x5mm) w/3.5mm exposed pad	OTH 490	-40 to 105C	2.95	2.36	Y
ADAU1961WBCPZ-R7 Production	32 ld LFCSP (5x5mm) w/3.5mm exposed pad	REEL 1500	-40 to 105C	0	2.36	Y
ADAU1961WBCPZ-RL Production	32 ld LFCSP (5x5mm) w/3.5mm exposed pad	REEL 5000	-40 to 105C	0	2.36	Y