CS6422-IS

Audio Special Purpose Overview

The CS6422-IS is an enhanced full-duplex speakerphone IC from Cirrus Logic that enables simultaneous transmit and receive audio paths using integrated echo cancellation and suppression. It features dual channel AGC'ed volume controls, a programmable microphone preamplifier, and speech-trained Network and Acoustic Echo Cancellers. The device supports optional Tx Noise Guard and configurable half-duplex training modes.

Audio Special Purpose Feature Summary

• Single-chip, full-duplex, hands-free operation with echo cancellation
• Dual channel AGC'ed volume controls with mute
• Optional 34 dB microphone preamplifier
• Speech-trained Network and Acoustic Echo Cancellers
• Rx and Tx supplementary echo suppression
• Configurable half-duplex training mode
• Powerdown mode
• Microcontroller Interface

Audio Special Purpose Applications

• Full-duplex speakerphones
• Hands-free communication systems

Audio Special Purpose Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific IS suffix indicates the industrial temperature grade (-40°C to 85°C) and SOIC package variant. Request current production status documentation as legacy components may have limited availability or end-of-life implications.