CS42L52-CNZR Equivalent & Substitute Parts

Part Overview

The CS42L52-CNZR is a stereo audio codec interface manufactured by Cirrus Logic Inc., designed for headphone and speaker applications. This device integrates a 24-bit serial audio interface with integrated analog-to-digital and digital-to-analog conversion in a compact 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 continued design flexibility and supply chain continuity for new production runs and long-term product support.

Substiute Parts

CS42L52-CNZR

Cirrus Logic Inc.In Stock: 101367CS42L52-CNZR 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-CNZR is evaluated based on the following critical parameters:

• Audio resolution and bit depth (24-bit requirement)
• Stereo audio codec functionality
• Sigma Delta modulation capability
• Dynamic range performance (ADC ≥99 dB, DAC ≥98 dB)
• Supply voltage compatibility (analog and digital rails)
• Operating temperature range (-40°C to 85°C)
• Surface mount packaging and form factor
• RoHS3 compliance and regulatory status

The WM8962BECSN/R qualifies as a substitute based on matching core audio codec functionality, 24-bit resolution, stereo audio processing, Sigma Delta architecture, and identical operating temperature range. Both parts maintain RoHS3 compliance and REACH unaffected status. However, differences in ADC/DAC count, data interface protocol, supply voltage ranges, and physical package must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The WM8962BECSN/R is an active product from Cirrus Logic Inc. with ongoing manufacturing support, making it suitable for designs requiring long-term component availability. Both parts maintain ROHS3 compliance and REACH unaffected regulatory status, ensuring environmental and safety standard alignment.

Key considerations for selection:

The CS42L52-CNZR features a single ADC/DAC configuration with serial data interface, while the WM8962BECSN/R provides dual ADC/DAC channels with I2C and SPI control interfaces. The WM8962BECSN/R offers superior moisture sensitivity performance (MSL 1 vs. MSL 3), reducing handling and storage constraints. The analog supply voltage range of the WM8962BECSN/R (1.7V ~ 2V) is narrower than the CS42L52-CNZR (1.65V ~ 2.63V), requiring verification against specific power supply design parameters. The digital supply voltage range of the WM8962BECSN/R (1.62V ~ 3.6V) provides greater flexibility compared to the CS42L52-CNZR (1.65V ~ 2.63V).

Physical package differences (40-QFN vs. 49-WLCSP) necessitate PCB layout redesign and footprint modification. ADC dynamic range differs by 5 dB (CS42L52-CNZR: 99 dB vs. WM8962BECSN/R: 94 dB), which may impact audio signal-to-noise performance in noise-sensitive applications.

Frequently Asked Questions (FAQ)

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

A: No. The WM8962BECSN/R uses a 49-WLCSP package versus the CS42L52-CNZR's 40-QFN package. PCB footprint redesign and layout modifications are required. Additionally, the data interface differs (I2C/SPI vs. Serial), requiring firmware and control logic updates.

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

A: The WM8962BECSN/R provides dual ADC/DAC channels compared to the CS42L52-CNZR's single channel configuration. Analog supply voltage ranges differ (1.7V ~ 2V vs. 1.65V ~ 2.63V). ADC dynamic range is 5 dB lower on the WM8962BECSN/R (94 dB vs. 99 dB). Digital supply voltage range is broader on the WM8962BECSN/R (1.62V ~ 3.6V vs. 1.65V ~ 2.63V).

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the CS42L52-CNZR and WM8962BECSN/R are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance restrictions.

Q: What is the moisture sensitivity difference, and why does it matter?

A: The CS42L52-CNZR has MSL 3 (168 hours), while the WM8962BECSN/R has MSL 1 (unlimited). Lower MSL ratings reduce moisture absorption risk during storage and handling, lowering the risk of solder joint failures and improving manufacturing yield in humid environments.

Q: Is the WM8962BECSN/R suitable for applications requiring the CS42L52-CNZR's 99 dB ADC dynamic range?

A: The WM8962BECSN/R's 94 dB ADC dynamic range is 5 dB lower. Applications with stringent noise performance requirements must evaluate whether this reduction is acceptable for the intended use case.

Q: What is the product status difference, and what does it mean for supply chain planning?

A: The CS42L52-CNZR is in Last Time Buy status, indicating end-of-life production with limited future availability. The WM8962BECSN/R is Active, with ongoing manufacturing support and long-term availability assurance, making it preferable for new designs and sustained production.