CS53L21

CS53L21 Low-Power, Stereo Analog-to-Digital Converter FEATURES  98-dB dynamic range (A-weighted)  –88-dB THD+N  Analog gain controls – +32-dB or +16-dB mic preamps – Analog programmable gain amplifier (PGA)  +20-dB digital boost  Programmable automatic level control (ALC) – Noise gate for noise suppression – Programmable threshold and attack/release rates  Independent left/right channel control  Digital volume control  High-pass filter disable for DC measurements  Stereo 3:1 analog input MUX  Dual mic inputs – Programmable, low noise mic bias levels – Differential mic mix for common mode noise rejection  Very low 64 Fs oversampling clock reduces power consumption SYSTEM FEATURES  24-bit conversion  4–96 kHz sample rate  Multibit delta–sigma architecture  Low power operation – Stereo record (ADC): 8.72 mW @ 1.8 V – Stereo record (mic to PGA and ADC): 13.73 mW @ 1.8 V  Variable power supplies – 1.8–2.5-V digital and analog – 1.8–3.3-V interface logic  Power down management – ADC, mic preamplifier, PGA  Software Mode (I²C™ and SPI™ control)  Hardware Mode (standalone control)  Flexible clocking options – Master or slave operation  Digital routing mixes – Mono mixes 1.8 V to 3.3 V 1.8 V to 2.5 V Hardware Mode  or I2C & SPI  Software Mode Control Data Reset Serial Audio  Output Level Translator PCM Serial Interface Digital  Signal  Processing Engine ALC High Pass  Filters Register  Configuration Multibit Oversampling  MUX PGA Volume  Controls ADC ...