CS4226-BQ

Audio Special Purpose Overview

The CS4226-BQ is a single-chip surround sound codec manufactured by Cirrus Logic Inc. It integrates stereo analog-to-digital converters and six digital-to-analog converters using Delta-Sigma conversion techniques. The device operates on a +5V supply with a voltage range of 4.75V to 5.25V. It features independent volume control for all six D/A channels and includes an S/PDIF receiver for digital input. The component supports I2C and SPI interfaces and is housed in a 44-TQFP package. It is qualified for automotive applications and functions within a temperature range of -40°C to +85°C.

Audio Special Purpose Feature Summary

• Integrates stereo 20-bit A/D converters and six 20-bit D/A converters
• Includes S/PDIF receiver with AC-3 and MPEG auto-detect capability
• Provides independent programmable volume control for each D/A channel
• Features on-chip anti-aliasing, output smoothing filters, and de-emphasis

Audio Special Purpose Applications

• Dolby Pro-logic home theater systems
• Dolby Digital AC-3 home theater systems
• THX home theater systems
• DTS home theater systems
• DSP-based car audio systems

Audio Special Purpose Procurement Notes

Verify the specific suffix BQ indicates automotive grade qualification and extended temperature range (-40°C to +85°C) compared to commercial variants. Confirm the 44-TQFP (10x10) package dimensions match the target PCB footprint. Ensure interface compatibility with the host controller's I2C or SPI configuration before integration.