ADAU1979WBCPZ

ANALOG DEVICES  ADAU1979WBCPZ  模数转换器, AEC-Q100, 24 bit, 192 kSPS, 单, 3 V, 3.6 V, LFCSP

Product Details

The ADAU1979 incorporates four high performance, analog-to-digital converters ADCs with 4.5 V rms capable ac-coupled inputs. The ADCs use a multibit sigma-delta Σ-Δ architecture with continuous time front end for low EMI. An I2C/serial peripheral interface SPI control port is included that allows a microcontroller to adjust volume and many other parameters. The ADAU1979 uses only a single 3.3 V supply. The device internally generates the required digital DVDD supply. The low power architecture reduces the power consumption. The on-chip PLL can derive the master clock from an external clock input or frame clock sample rate clock. When fed with the frame clock, it eliminates the need for a separate high frequency master clock in the system. The ADAU1979 is available in a 40-lead LFCSP package.

Note that throughout this data sheet, multifunction pins, such as SCL/CCLK, are referred to either by the entire pin name or by a single function of the pin, for example, CCLK, when only that function is relevant.

**Applications**

.

Automotive audio systems

.

Active noise cancellation systems

### Features and Benefits

.

Four 4.5 V rms typical differential inputs

.

On-chip phase-locked loop PLL for master clock

.

Low electromagnetic interference EMI design

.

109 dB typical analog-to-digital converter ADC dynamic range

.

Total harmonic distortion + noise THD + N: −95 dB typical

.

Selectable digital high-pass filter

.

24-bit stereo ADC with 8 kHz to 192 kHz sample rates

.

Digital volume control with autoramp function

.

See data sheet for additional features