This document introduces CS4271 24-Bit, 192 kHz Stereo Audio CODEC. The chip has high performance, high sampling rate, differential analog architecture, soft start volume control, optional digital filters, ATAPI mixing functions, optional serial audio interface formats, control output for external muting, optional 50/15μs de-emphasis etc.
The CS4271 is a high‑performance 24‑bit stereo audio CODEC that integrates both analog‑to‑digital and digital‑to‑analog conversion up to 192 kHz. It offers selectable digital filters, volume control with soft‑ramp, and on‑chip oscillator for flexible system designs.
The document includes detailed pin descriptions for software and stand‑alone modes, full electrical and analog characteristics, register tables, typical connection diagrams, and application notes for consumer, automotive, and professional audio equipment.
| Dynamic Range (D/A) | 114 dB |
|---|---|
| THD+N (D/A) | 100 dB |
| Dynamic Range (A/D) | 108 dB |
| THD+N (A/D) | 98 dB |
| Maximum Sampling Rate | 192 kHz |
| Volume Control Step Size | 1 dB |
| Operating Temperature – Commercial Grade | -10°C to +70°C |
| Operating Temperature – Automotive Grade | -40°C to +85°C |
| On‑Chip Oscillator | Included |
The volume control operates with a 1 dB step size.
It supports sampling rates up to 192 kHz.
Yes, the device contains an on‑chip oscillator for clock generation.