CS5351-DZZ Equivalent & Substitute Parts

Part Overview

The CS5351-DZZ is a 24-bit audio ADC (Analog-to-Digital Converter) manufactured by Cirrus Logic Inc., designed for high-resolution audio acquisition at sampling rates up to 192 kHz. This component features dual-channel audio conversion with serial data interface capability and operates across both 3.3V and 5V supply rails. The CS5351-DZZ is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design considerations.

Substiute Parts

CS5351-DZZ

Cirrus Logic Inc.In Stock: 2025CS5351-DZZ Datasheet

Current PartRFQ

CS5351K-DZZ

Cirrus Logic Inc.In Stock: 1504CS5351K-DZZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS5351-DZZ is determined by the following critical parameters:

• Resolution and Sampling Rate: Both main and substitute parts must support 24-bit resolution at 192 kHz sampling rate
• Channel Configuration: Dual-channel (2-channel) audio conversion capability
• Package Compatibility: Identical 24-TSSOP surface-mount package ensures PCB layout compatibility
• Data Interface: Serial interface support is mandatory; I2S interface support is acceptable as an enhancement
• Supply Voltage Compatibility: Operating voltage ranges must overlap with system requirements
• Operating Temperature Range: Must maintain -40°C to 85°C specification
• Compliance Standards: RoHS3 compliance and MSL rating must be maintained

The CS5351K-DZZ qualifies as a direct substitute based on these parameters. Both parts share identical channel count, resolution, sampling rate, package form factor, and operating temperature specifications. The CS5351K-DZZ extends data interface capability by supporting both I2S and Serial protocols, while maintaining full backward compatibility with serial-only implementations.

Parameter Comparison

Engineering Selection Recommendations

The CS5351K-DZZ serves as the manufacturer-recommended substitute for the obsolete CS5351-DZZ. Both components maintain identical core specifications for audio acquisition: 24-bit resolution, 192 kHz sampling rate, dual-channel configuration, and 24-TSSOP package form factor.

The CS5351K-DZZ provides enhanced flexibility through dual data interface support (I2S and Serial), while the CS5351-DZZ supports Serial interface only. This enhancement does not compromise backward compatibility; systems designed for serial-only operation function identically with the substitute part.

Supply voltage specifications show improved flexibility in the CS5351K-DZZ, with wider operating ranges (4.75V ~ 5.25V and 3.1V ~ 5.25V) compared to the discrete 3.3V and 5V specifications of the CS5351-DZZ. Both parts maintain identical operating temperature range (-40°C to 85°C) and compliance certifications (ROHS3, MSL 3).

Both components carry legacy product status: CS5351-DZZ is classified as Obsolete, while CS5351K-DZZ is classified as Not For New Designs. For applications requiring long-term component availability, evaluation of current-generation audio ADC alternatives from Cirrus Logic or other manufacturers is recommended.

Frequently Asked Questions (FAQ)

Q: Can the CS5351K-DZZ directly replace the CS5351-DZZ without PCB modifications?

A: Yes. Both parts use identical 24-TSSOP packaging with matching pinout and footprint. No PCB layout changes are required for physical substitution.

Q: What is the primary difference between these two parts?

A: The CS5351K-DZZ adds I2S interface capability alongside the serial interface supported by both parts. All other specifications—resolution, sampling rate, channel count, supply voltage, and operating temperature—remain identical.

Q: Are there supply voltage compatibility concerns when substituting?

A: The CS5351K-DZZ operates across wider voltage ranges (4.75V ~ 5.25V and 3.1V ~ 5.25V) compared to the CS5351-DZZ (3.3V and 5V discrete levels). Systems designed for 3.3V or 5V operation are fully compatible with the substitute part.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both the CS5351-DZZ and CS5351K-DZZ are ROHS3 compliant with identical Moisture Sensitivity Level 3 (168 Hours) ratings and operating temperature ranges of -40°C to 85°C.

Q: Why is the CS5351-DZZ classified as Obsolete?

A: The CS5351-DZZ has reached end-of-life status. The CS5351K-DZZ, classified as Not For New Designs, represents the final iteration of this product line before discontinuation.

Q: Should new designs use the CS5351K-DZZ?

A: The CS5351K-DZZ is classified as Not For New Designs, indicating it is also in legacy status. For new audio ADC implementations, current-generation alternatives from Cirrus Logic or competing manufacturers should be evaluated.