CS42L52-CNZ Equivalent & Substitute Parts

Part Overview

The CS42L52-CNZ is a stereo audio codec manufactured by Cirrus Logic Inc., designed for headphone and speaker interface applications. This 24-bit serial audio interface integrates a single ADC and DAC with sigma-delta conversion technology in a 40-QFN surface mount package. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs and long-term product support.

Substiute Parts

CS42L52-CNZ

Cirrus Logic Inc.In Stock: 41724CS42L52-CNZ Datasheet

Current PartRFQ

WM8962BECSN/R

Cirrus Logic Inc.In Stock: 6197WM8962BECSN/R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS42L52-CNZ is determined by the following critical parameters:

• Audio Resolution: 24-bit processing capability
• Stereo Configuration: Dual-channel audio input and output
• Sigma-Delta Architecture: Required for audio quality and noise performance
• Supply Voltage Compatibility: Operating ranges for both analog and digital supplies
• Operating Temperature Range: -40°C to 85°C industrial specification
• Surface Mount Packaging: QFN or equivalent ball grid array packages
• Compliance Standards: RoHS3 and REACH compliance

The WM8962BECSN/R meets these core substitution criteria while offering enhanced specifications in certain areas, including dual ADC/DAC configuration and extended digital supply voltage range.

Parameter Comparison

Engineering Selection Recommendations

The WM8962BECSN/R is an active substitute for the CS42L52-CNZ based on the following engineering criteria:

Compliance & Availability: Both parts maintain ROHS3 and REACH compliance. The WM8962BECSN/R carries Active product status with current inventory availability, whereas the CS42L52-CNZ is in Last Time Buy status with limited future supply.

Functional Compatibility: Both devices provide 24-bit stereo audio processing with sigma-delta conversion and identical operating temperature ranges (-40°C to 85°C). The WM8962BECSN/R offers dual ADC/DAC channels compared to the single ADC/DAC configuration of the CS42L52-CNZ, providing enhanced audio channel capacity.

Supply Voltage Considerations: The WM8962BECSN/R digital supply voltage range (1.62V ~ 3.6V) is broader than the CS42L52-CNZ (1.65V ~ 2.63V), offering greater design flexibility. The analog supply ranges differ slightly; verify that your system's 1.7V ~ 2V analog supply specification aligns with the WM8962BECSN/R requirement.

Package & Moisture Sensitivity: The WM8962BECSN/R uses a 49-CSP package versus the 40-QFN package of the CS42L52-CNZ. The WM8962BECSN/R has MSL rating 1 (Unlimited), providing superior moisture tolerance compared to the CS42L52-CNZ MSL rating 3 (168 Hours).

Interface Protocol: The WM8962BECSN/R supports I2C and SPI interfaces, whereas the CS42L52-CNZ uses Serial interface. Confirm that your system firmware and PCB layout can accommodate the different interface protocols.

Frequently Asked Questions (FAQ)

Q: Can the WM8962BECSN/R directly replace the CS42L52-CNZ without PCB modifications?

A: Direct pin-for-pin replacement is not possible due to different package types (40-QFN versus 49-CSP) and pin configurations. PCB layout redesign is required. Additionally, the interface protocol difference (Serial versus I2C/SPI) requires firmware updates.

Q: What are the key electrical differences between these parts?

A: The primary differences are the dual ADC/DAC configuration in the WM8962BECSN/R versus single ADC/DAC in the CS42L52-CNZ, and the extended digital supply voltage range (1.62V ~ 3.6V) of the WM8962BECSN/R. Analog supply ranges differ slightly and must be verified against your system design.

Q: Is the WM8962BECSN/R suitable for applications requiring the exact CS42L52-CNZ specifications?

A: The WM8962BECSN/R meets the core 24-bit stereo audio codec requirements with sigma-delta conversion and identical operating temperature range. However, the enhanced dual-channel configuration and different interface protocols require system-level evaluation to confirm functional equivalence for your specific application.

Q: What is the impact of the different MSL ratings?

A: The CS42L52-CNZ has MSL rating 3 (168 hours maximum floor life), while the WM8962BECSN/R has MSL rating 1 (unlimited floor life). The WM8962BECSN/R provides superior moisture tolerance and reduced handling constraints during manufacturing and assembly.

Q: Are both parts compliant with current regulatory standards?

A: Yes, both the CS42L52-CNZ and WM8962BECSN/R are ROHS3 compliant and REACH unaffected, meeting current electronic component regulatory requirements.