CS4226-BQZR

Codecs Overview

The CS4226-BQZR is a single-chip audio codec manufactured by Cirrus Logic, designed for multi-channel surround sound applications. It integrates stereo analog-to-digital converters and six digital-to-analog converters utilizing Delta-Sigma conversion techniques. The device operates at +5V and includes an S/PDIF receiver with AC-3 and MPEG auto-detect capabilities. Key specifications include 20-bit resolution for both ADCs and DACs, a DAC signal-to-noise ratio of 108 dB (EIAJ), and independent volume control for each D/A channel. It features programmable input gain, output attenuation, on-chip anti-aliasing filters, de-emphasis for standard sample rates, and supports Dolby Pro-logic, Dolby Digital AC-3, THX, and DTS formats.

Codecs Feature Summary

• Integrates stereo A/D and six D/A converters with S/PDIF reception
• Includes AC-3 and MPEG auto-detect functionality
• Provides independent volume control per D/A channel
• Features on-chip anti-aliasing and smoothing filters

Codecs Applications

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

Codecs Procurement Notes

Verify the specific suffix BQZR against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with +5V power supply requirements and check for RoHS compliance status in current production notices. Confirm availability as this component may be subject to discontinuation or lifecycle changes.

Codecs Selection Notes

Select this component for designs requiring integrated multi-channel decoding and conversion in a single package. Consider the 20-bit resolution and 108 dB SNR for high-fidelity audio paths. Verify interface compatibility with the host processor for S/PDIF and I2C/SPI control. Evaluate thermal performance within the intended operating temperature range.

Codecs Part Context

The CS4226 series belongs to Cirrus Logic's surround sound codec family, targeting premium audio processing needs. The BQZR variant typically denotes a specific packaging configuration, often QFN, suitable for surface-mount assembly. This part consolidates multiple discrete functions into one chip, reducing board space and component count for complex audio architectures.

Codecs Replacement Considerations

Direct pin-compatible replacements are not explicitly listed in public documentation for the BQZR suffix. Review the broader CS4226 family (e.g., CS4226-BQ) for potential alternatives, ensuring voltage levels and feature sets match. Consult Cirrus Logic for current recommended upgrades if the part is discontinued.