CS5376A-IQZ

Overview

The CS5376A-IQZ is a multi-channel digital decimation filter designed for geophysical and sonar applications. It supports up to four concurrent channels with selectable output word rates ranging from 4000 SPS down to 1 SPS. The device integrates cascaded SINC, FIR, and IIR filters with programmable coefficients for custom responses. Key specifications include a 64-pin TQFP package, power consumption of 9 mW per channel at 500 SPS, and flexible supply voltages: 3.0 V/3.3 V/5.0 V for the digital logic core and 3.3 V or 5.0 V for I/O interfaces.

Feature Summary

• Supports synchronous operation for simultaneous sampling across multiple sensor channels.
• Integrates digital gain correction and automatic offset calibration engines.
• Includes a test bit stream generator capable of producing sine waves for system verification.
• Features a high-speed serial data port with an internal FIFO for telemetry connections.

Applications

• Geophysical measurement systems
• Sonar signal processing
• Multi-channel sensor data acquisition

Procurement Notes

Verify the specific suffix IQZ against current manufacturer documentation to confirm pinout and voltage compatibility. Confirm availability status as this component may be subject to lifecycle changes. Ensure the design accommodates the required 64-pin TQFP footprint and bypass capacitor placement.

Selection Notes

Select this component when designing systems requiring precise digital filtering for delta-sigma modulators like the CS5371A/72A. Consider the low-power standby mode and flexible configuration options via microcontroller or EEPROM if system reconfiguration during operation is required.

Part Context

The CS5376A serves as the digital filtering stage in Cirrus Logic's measurement ecosystem. It complements differential amplifiers such as the CS3301A/CS3302A and delta-sigma modulators like the CS5371A/72A. Together, these components form a complete, self-testing, high-resolution multi-channel measurement solution.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.