CS5344-CZZR Equivalent & Substitute Parts

Part Overview

The CS5344-CZZR is a 24-bit audio ADC (Analog-to-Digital Converter) manufactured by Cirrus Logic Inc., designed for data acquisition applications requiring serial audio interface capability. This device operates at a 96 kHz sampling rate with dual-channel audio input and is available in a 10-TSSOP surface mount package. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure continued design support, maintain supply chain continuity, and evaluate alternative solutions for new designs or production transitions.

Substiute Parts

CS5344-CZZR

Cirrus Logic Inc.In Stock: 839CS5344-CZZR Datasheet

Current PartRFQ

CS5361K-DZZR

Cirrus Logic Inc.In Stock: 11679CS5361K-DZZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Resolution and Bit Depth: Both parts maintain 24-bit resolution, ensuring equivalent audio fidelity and dynamic range.
• Number of Channels: Both parts provide 2-channel audio input, maintaining system architecture compatibility.
• Operating Temperature Range: Both parts support −40°C to +85°C, ensuring equivalent thermal performance across industrial and commercial applications.
• Voltage Supply Compatibility: Both parts support overlapping supply voltage ranges (4.75V–5.25V common range), allowing operation in equivalent power supply configurations.
• RoHS and Compliance Status: Both parts are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements.

The CS5361K-DZZR is identified as a manufacturer-recommended substitute. While it introduces differences in sampling rate (192 kHz vs. 96 kHz), data interface (I2S vs. Serial), and package size (24-TSSOP vs. 10-TSSOP), these represent functional enhancements rather than incompatibilities. The substitute part offers higher sampling capability and an enhanced digital interface, suitable for applications requiring higher audio bandwidth or improved digital connectivity.

Parameter Comparison

Engineering Selection Recommendations

For Existing Designs Using CS5344-CZZR:

The CS5361K-DZZR serves as a manufacturer-recommended substitute and is currently in Active product status, ensuring long-term availability and supply chain stability. Both parts maintain ROHS3 compliance and equivalent operating temperature ranges. Selection of the substitute requires verification of PCB layout compatibility due to package size increase (10-TSSOP to 24-TSSOP) and confirmation that the I2S digital interface aligns with system requirements.

For New Designs:

The CS5361K-DZZR is the preferred selection due to its Active product status, higher sampling rate capability (192 kHz), and enhanced digital interface (I2S). The substitute part provides superior audio bandwidth and improved digital connectivity while maintaining equivalent bit resolution and channel count.

Supply Chain Considerations:

The CS5344-CZZR is in Last Time Buy status with 812 units in stock. The CS5361K-DZZR is in Active status with 11,601 units available, providing significantly greater supply security for production and future orders.

Frequently Asked Questions (FAQ)

Q: Can the CS5361K-DZZR directly replace the CS5344-CZZR in existing designs?

A: Direct replacement requires PCB layout modification due to package size change (10-TSSOP to 24-TSSOP) and digital interface verification. The I2S interface on the substitute differs from the Serial interface on the original part, requiring firmware or digital signal processing adjustments.

Q: Are the voltage supply requirements compatible between these parts?

A: Both parts support the 4.75V–5.25V supply range. The CS5344-CZZR additionally supports 3.1V–4.6V operation, while the CS5361K-DZZR supports 3.1V–5.25V. Systems operating at 4.75V–5.25V are fully compatible with either part.

Q: What is the impact of the higher sampling rate on system design?

A: The CS5361K-DZZR operates at 192 kHz versus 96 kHz on the CS5344-CZZR. This requires higher digital interface bandwidth and increased data throughput. Systems must support I2S protocol and accommodate doubled audio data rates.

Q: How do the package differences affect PCB design?

A: The CS5344-CZZR uses a 10-TSSOP package (0.118" width, 3.00mm), while the CS5361K-DZZR uses a 24-TSSOP package (0.173" width, 4.40mm). PCB footprint redesign is required for substitution, including trace routing and component placement adjustments.

Q: What are the moisture sensitivity implications?

A: The CS5344-CZZR has MSL 2 rating (1 Year shelf life), while the CS5361K-DZZR has MSL 3 rating (168 Hours shelf life). The substitute part requires more stringent moisture control during storage and handling.

Q: Why is the CS5361K-DZZR recommended as a substitute despite interface differences?

A: The substitute is manufacturer-recommended and offers enhanced specifications (higher sampling rate, I2S interface) while maintaining equivalent bit resolution, channel count, and operating temperature range. Its Active product status ensures long-term availability compared to the Last Time Buy status of the original part.