ZXCW6100S28

Overview

The ZXCW6100S28 is a 24-bit stereo direct drive digital audio amplifier from Diodes Incorporated (formerly Zetex). It converts digital audio data to loudspeaker signals with minimal external components. Key performance metrics include a dynamic range of 101dB, a noise floor of -110dB, and THD+N of 0.05% at 1W into 4Ω. It supports sampling rates up to 192kHz and features a 3-wire SPI interface for control. The device operates on a 3.3V supply within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates 24-bit conversion and digital filtering with direct drive PWM outputs for complete audio interfacing.
• Supports all common digital audio standards including I2S, Left Justify, and Right Justify formats.
• Includes proprietary NOVALOAD™ system for clipping control and user-definable digital volume, bass, and treble adjustments.
• Features ZTA filter system and noise shaper stability up to full modulation for high-fidelity output.

Applications

• 5.1 Integrated DVD amplifiers
• Home theatre systems
• Mini Hi-fi systems
• Automotive audio
• PC audio

Procurement Notes

Verify the manufacturer origin as Diodes Incorporated acquired the Zetex portfolio. Confirm the package type is 28-pin SSOP. Ensure the datasheet version matches the required specifications for digital audio processing and SPI control interfaces.

Selection Notes

Select this component for applications requiring high-performance digital-to-analog conversion integrated with power amplification. It is suitable for designs needing low distortion and high dynamic range without complex external DSP. Consider the 3.3V logic compatibility and SPI interface requirements for system integration.

Part Context

This part belongs to the Acoustar™ range of digital audio power devices. It represents a solution that combines digital signal processing with power amplification in a single IC, reducing the bill of materials for high-end audio equipment compared to discrete solutions.

Replacement Considerations

Check for equivalent stereo digital audio amplifiers with similar SPI control and PWM output capabilities. Verify pinout compatibility if substituting directly. Ensure the replacement supports the required sampling rates and voltage levels.

FAQ

What digital audio input formats are supported?

The device supports 24-bit I2S, 24-bit Left Justify, 16-bit Right Justify, and 24-bit Right Justify formats.

How is the device controlled?

It is controlled via a bi-directional 3-wire SPI interface using an 8-bit control and 64-bit data string written to internal registers.

What is the function of NOVALOAD™?

NOVALOAD™ is an overload management system that modifies volume or tone to prevent clipping, with programmable attack and decay rates.