CS8427-DZZR

Audio Special Purpose Overview

The CS8427-DZZR is a digital audio transceiver from Cirrus Logic designed for AES3 and S/PDIF applications. It integrates AES3/S/PDIF receivers and transmitters alongside flexible 3-wire serial digital I/O ports. The device supports adjustable sample rates up to 96 kHz with low-jitter clock recovery mechanisms. It operates on a +5.0 V analog supply (VA+) and a +3.3 V or +5.0 V digital interface (VL+). Control is managed via a 4-wire microcontroller port supporting SPI and I²C protocols. The component is housed in a 28-TSSOP package and functions within an operating temperature range of -10°C to +70°C.

Audio Special Purpose Feature Summary

• Complete EIAJ CP1201, IEC-60958, AES3, and S/PDIF-compatible transceiver functionality
• Low-jitter clock recovery mechanism yielding clean recovered clocks from incoming AES3 streams
• On-chip Channel Status and User Data Buffer Memories permitting block reads and writes
• Supports Microcontroller and Standalone modes with pin and microcontroller access to control registers

Audio Special Purpose Applications

• A/V receivers
• CD-R and DVD receivers
• Multimedia speakers
• Digital mixing consoles
• Automotive audio systems

Audio Special Purpose Procurement Notes

This part is currently End-of-Life (EOL) / Obsolete. Verify the specific suffix DZZR against current manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 28-TSSOP package before procurement.

Audio Special Purpose Selection Notes

Select this component for designs requiring integrated AES3/S/PDIF transmission and reception with serial audio interfaces. Verify that the system power supplies align with the required +5.0 V analog and +3.3 V/+5.0 V digital rails. Consider the operating temperature range of -10°C to +70°C for environmental suitability.

Audio Special Purpose Part Context

The CS8427 belongs to the Cirrus Logic CS84xx series of digital audio interface transceivers. This family provides solutions for professional and consumer digital audio equipment. The DZZR suffix typically denotes the TSSOP package variant with commercial temperature grading, distinguishing it from SOIC or automotive-grade alternatives.

Audio Special Purpose Replacement Considerations

Direct replacements include other CS8427 variants such as CS8427-CSZ or CS8427-CZ, which share identical electrical specifications but differ in package style or temperature rating. Cross-reference datasheets to ensure pinout and register compatibility.