Audio codec CS4271

The CS4271 is a highly integrated audio codec that utilizes a single-ended input and differential output architecture to deliver high analog performance and to maximize system flexibility with an on-chip oscillator, output volume control with soft ramp and zero crossing, selectable digital filter response, and integrated level shifters for direct interface to logic levels from 2.5 V to 5 V. The on-chip oscillator eliminates the need for an external crystal oscillator circuit, thereby reducing overall design cost and conserving circuit board space. The CS4271 automatically uses the on-chip oscillator in the absence of an applied main clock, simplifying system design. Features Complete stereo codec 24-bit conversion System sampling rates up to 192 kHz 108 dB A/D converter dynamic range 114 dB D/A converter dynamic range -98 dB A/D converter/-105 dB D/A converter THD+N Output digital volume control with soft ramp Low-latency digital filter Selectable digital filter response High-pass filter or DC offset calibration Single-ended input architecture Differential output architecture On-chip oscillator Supports main or secondary mode operations 5 V analog power supply 3.3 V or 5 V digital power supply Supports direct interface to logic levels from 2.5 V to 5.0 V Footprint-compatible with the CS4272 Package: 28-pin TSSOP; lead-free assembly Consumer and automotive D-grade availability