CS5344-DZZ Equivalent & Substitute Parts

Part Overview

The CS5344-DZZ is a 24-bit audio analog-to-digital converter manufactured by Cirrus Logic Inc., designed for data acquisition applications requiring serial interface communication. This device operates at a 96 kHz sampling rate with dual-channel audio processing capability and supports both 3.1V–4.6V and 4.75V–5.25V supply voltages. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute components is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this ADC.

Substiute Parts

CS5344-DZZ

Cirrus Logic Inc.In Stock: 1749CS5344-DZZ Datasheet

Current PartRFQ

CS5361K-DZZ

Cirrus Logic Inc.In Stock: 2353CS5361K-DZZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS5344-DZZ is determined by the following critical parameters:

• Resolution and Channel Count: Both the main part and substitute must maintain 24-bit resolution with 2-channel audio processing to preserve signal fidelity and system architecture.
• Sampling Rate Compatibility: The substitute must support the required sampling frequency or higher to maintain or exceed audio bandwidth specifications.
• Data Interface: The interface protocol (Serial, I2S, or equivalent) must be compatible with the host system's digital audio interface requirements.
• Supply Voltage Range: The substitute must operate within the system's available power supply rails.
• Package and Mounting: Surface mount packages must be compatible with existing PCB layouts and assembly processes.
• Operating Temperature Range: The substitute must cover the required temperature specification for the application environment.
• Compliance and Certifications: RoHS and REACH compliance status must meet regulatory requirements.

The CS5361K-DZZ qualifies as a substitute based on matching resolution, channel count, and core compliance certifications, while offering enhanced sampling rate capability and alternative interface options.

Parameter Comparison

Engineering Selection Recommendations

The CS5361K-DZZ is the manufacturer-recommended substitute for the CS5344-DZZ. Both devices are manufactured by Cirrus Logic Inc. and maintain ROHS3 compliance and identical MSL ratings, ensuring regulatory and environmental compatibility.

The CS5361K-DZZ offers active product status, providing long-term availability and supply chain stability compared to the Last Time Buy status of the CS5344-DZZ. The substitute supports an enhanced sampling rate of 192 kHz, which exceeds the original 96 kHz specification and provides additional performance headroom for audio applications.

Design integration requires evaluation of the following factors: the CS5361K-DZZ uses I2S interface protocol rather than Serial interface, necessitating firmware or hardware interface adaptation; the package footprint increases from 10-TSSOP to 24-TSSOP, requiring PCB layout modification; the maximum operating temperature is reduced from 105°C to 85°C, which must be verified against application thermal requirements; and the supply voltage range is expanded to 3.1V–5.25V, offering broader compatibility with mixed-signal power domains.

Frequently Asked Questions (FAQ)

Q: Can the CS5361K-DZZ directly replace the CS5344-DZZ without design changes?

A: Direct pin-for-pin replacement is not possible. The CS5361K-DZZ uses a 24-pin package compared to the 10-pin package of the CS5344-DZZ, and the data interface protocol differs (I2S versus Serial). PCB layout redesign and interface firmware modification are required.

Q: What is the primary difference in sampling rate between these devices?

A: The CS5344-DZZ operates at 96 kHz, while the CS5361K-DZZ supports 192 kHz sampling. The higher sampling rate of the substitute provides extended audio bandwidth and improved signal fidelity for high-resolution audio applications.

Q: Are both devices compliant with environmental and regulatory standards?

A: Yes. Both the CS5344-DZZ and CS5361K-DZZ are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: How do the operating temperature ranges compare?

A: The CS5344-DZZ operates from −40°C to +105°C, while the CS5361K-DZZ operates from −40°C to +85°C. Applications requiring operation above 85°C must retain the original CS5344-DZZ or identify alternative solutions.

Q: What interface protocol changes are required when migrating to the CS5361K-DZZ?

A: The CS5344-DZZ uses a Serial interface, while the CS5361K-DZZ uses I2S (Inter-IC Sound) protocol. Host system firmware and digital audio interface logic must be adapted to support I2S communication standards.

Q: Are the supply voltage requirements compatible?

A: Both devices support the 4.75V–5.25V range. The CS5361K-DZZ additionally supports 3.1V–5.25V operation, providing expanded flexibility for mixed-voltage system designs. Verify that the application's power supply configuration aligns with the selected device's voltage specifications.