This document contains information for a new product, describing its features and characteristics.
The CS6422 is a single‑chip, full‑duplex speakerphone IC that provides echo cancellation, programmable attenuation, dual‑channel AGC, and optional microphone pre‑amplifier. It integrates telephone and audio interfaces, two codecs and an echo‑cancelling DSP, enabling high‑quality hands‑free communication.
The document includes absolute maximum ratings, recommended operating conditions, analog and digital characteristics, switching timing, package dimensions and ordering information for various temperature‑rated versions of the device.
| Supply voltage (absolute max) | -0.3 V to 6.0 V |
|---|---|
| Supply voltage (recommended) | 4.5 V to 5.5 V (typical 5.0 V) |
| Ambient operating temperature (industrial) | -40 °C to 85 °C |
| Analog supply current (RST=0) | 1 mA |
| Analog supply current (RST=1) | 10 mA to 20 mA |
| Digital supply current (RST=0) | 1 mA |
| Digital supply current (RST=1) | 50 mA to 80 mA |
| Microphone amplifier gain | 34 dB |
The recommended supply voltage is 4.5 V to 5.5 V, with a typical value of 5.0 V.
It can operate from –40 °C up to 85 °C in industrial environments.
The microphone amplifier provides a gain of 34 dB.