CS8420-CSZ

Audio Special Purpose Overview

The CS8420-CSZ is a stereo digital audio sample rate converter (SRC) with AES3-type and serial digital audio inputs/outputs, manufactured by Cirrus Logic Inc. It supports sample rates from 8 kHz to 108 kHz with a maximum input-to-output ratio of 3:1 or 1:3. The device features a complete IEC60958, AES3, S/PDIF, and EIAJ CP1201-compatible transceiver integrated with the SRC. Key performance metrics include a dynamic range of 128 dB and -117 dB THD+N at 1 kHz. It operates on a single 5 V supply (4.75 V to 5.25 V) within a commercial temperature range of -10°C to +70°C.

Audio Special Purpose Feature Summary

• Integrated Asynchronous Sample Rate Converter supporting 8 kHz to 108 kHz input/output rates
• Complete Transceiver compliant with IEC60958, AES3, S/PDIF, and EIAJ CP1201 standards
• High-performance audio specifications including 128 dB dynamic range and excellent clock jitter rejection
• Flexible control via 4-wire microcontroller port

Audio Special Purpose Applications

• CD-R, DAT, MD, DVD, and VTR equipment
• Mixing consoles and digital audio transmission equipment
• High-quality D/A and A/D converters
• Effects processors and computer audio systems

Audio Special Purpose Procurement Notes

This component has reached End-of-Life (EOL). Last Time Buy (LTB) dates have passed. Availability is limited to stock from authorized distributors or third-party suppliers. Verify authenticity carefully as counterfeits exist in the market.

Audio Special Purpose Selection Notes

Select the CS8420-CSZ for applications requiring asynchronous sample rate conversion between different digital audio sources. Ensure the system design accommodates the 28-pin SOIC footprint and provides appropriate power supply decoupling for the 5 V operation. Verify that the required sample rate ratios fall within the 1:3 to 3:1 operational limits.

Audio Special Purpose Part Context

The CS8420 belongs to Cirrus Logic's family of digital audio interface components. The 'CSZ' suffix typically denotes RoHS-compliant packaging without halogenated flame retardants. This specific part number represents the Commercial grade variant (-10°C to +70°C).

Audio Special Purpose Replacement Considerations

Direct pin-to-pin replacements are limited due to specific feature sets. Review datasheet compatibility for any substitute ICs regarding voltage levels, interface protocols, and supported sample rate ranges before integration. Consider newer Cirrus Logic audio interface solutions if available.