ADAU1977 Datasheet Quad ADC

Manufacturer: Analog Devices

Datasheet Details

The ADAU1977 incorporates four high performance analogto-digital converters (ADCs) with direct-coupled inputs capable of 10 V rms.

The ADC uses multibit sigma-delta (Σ-Δ) architecture with continuous time front end for low EMI.

The ADCs can be connected to the electret microphone (ECM) directly and provide the bias for powering the microphone.

Data Sheet.

Programmable microphone bias (5 V to 9 V) with diagnostics Four 10 V rms capable direct-coupled differential inputs On-chip PLL for master clock Low EMI design 109 dB ADC dynamic range.
95 dB THD + N Selectable digital high-pass filter 24-bit ADC with 8 kHz to 192 kHz sample rates Digital volume control with autoramp function I2C/SPI control Software-controllable clickless mute Software power-down Right justified, left justified, I2S justified, and TDM modes Master and slave operation mo.

Part Number	Description
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