CS4351-DZZ

ADCs/DACs - Special Purpose Overview

The CS4351-DZZ is a stereo digital-to-analog converter (DAC) from Cirrus Logic, designed for high-fidelity audio applications. It features 24-bit resolution and supports sample rates up to 192 kHz. The device utilizes a fifth-order multi-bit delta-sigma modulator architecture, achieving a dynamic range of 112 dB and -100 dB THD+N. It integrates digital interpolation, de-emphasis, volume control with soft ramp, and channel mixing capabilities. The DAC provides a 2 Vrms line-level output into a 5 kΩ AC load. It operates with +3.3 V, +9 to 12 V, and VL power supplies and is housed in a 20-pin TSSOP package suitable for the automotive temperature range of -40°C to +85°C.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with support for sample rates up to 192 kHz
• 112 dB A-weighted dynamic range and -100 dB THD+N
• Integrated digital volume control with 1/2 dB step size and zero-crossing mute
• ATAPI mixing capability and Popguard® technology for transient control

ADCs/DACs - Special Purpose Applications

• DVD players
• A/V receivers
• Set-top boxes
• Digital TVs
• Mixing consoles

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix DZZ confirms the automotive grade (-40°C to +85°C) and 20-pin TSSOP package configuration against the manufacturer's ordering guide. Confirm current availability status as product lifecycles may change. Ensure power supply requirements (+3.3V, +9-12V, VL) align with system design constraints before procurement.

ADCs/DACs - Special Purpose Selection Notes

Select the CS4351-DZZ for systems requiring high dynamic range and low distortion in a compact form factor. The integrated volume control and ATAPI mixing reduce external component count. Ensure the host interface supports the required serial audio formats (I2S, Left-Justified, Right-Justified) and control port protocols (I²C or SPI). Verify that the available power rails match the specified VA_H, VA, VD, and VL requirements.

ADCs/DACs - Special Purpose Part Context

The CS4351 belongs to Cirrus Logic's family of complete stereo digital-to-analog systems. It shares architectural similarities with the CS4350 and CS4352 but offers specific integration levels for volume control and mixing. The -DZZ suffix denotes the automotive temperature grade variant within the broader CS4351 product line, distinguishing it from commercial grade options.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material. Evaluate alternative Cirrus Logic models such as the CS4350 or CS4352 based on pin compatibility and feature overlap, ensuring thermal and electrical specifications meet the application requirements.