CS47L15-CWZR Equivalent & Substitute Parts

Part Overview

The CS47L15-CWZR is a 24-bit audio codec manufactured by Cirrus Logic Inc., designed for audio interface applications with SPI data connectivity. This component features 3 ADCs and 3 DACs with Sigma Delta modulation, operating across analog supply voltages of 1.71V to 1.89V and digital supply voltages of 1.14V to 1.26V. The device is packaged in a 70-WLCSP (3.01x4.61mm) ball grid array format suitable for surface mount applications.

The CS47L15-CWZR is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this audio codec.

Substiute Parts

CS47L15-CWZR

Cirrus Logic Inc.In Stock: 3897CS47L15-CWZR Datasheet

Current PartRFQ

CS47L24-CWZR

Cirrus Logic Inc.In Stock: 19697CS47L24-CWZR Datasheet

MFR RecommendedRFQ

CS47L35-CWZR

Cirrus Logic Inc.In Stock: 10169CS47L35-CWZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS47L15-CWZR is determined by the following critical parameters:

Primary Substitution Criteria:

• Manufacturer: Cirrus Logic Inc.
• Type: Audio
• Operating Temperature Range: -40°C ~ 85°C
• Mounting Type: Surface Mount
• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Unaffected Status

Secondary Compatibility Factors:

• Data Interface compatibility (SPI primary, but I2C and SLIMbus capable devices may serve alternative roles)
• Supply voltage ranges (analog and digital)
• ADC/DAC channel configuration
• Package form factor (WLCSP variants)

The substitute parts CS47L24-CWZR and CS47L35-CWZR are both manufactured by Cirrus Logic Inc. and share the same operating temperature range, RoHS compliance status, and moisture sensitivity classification. Both devices maintain surface mount packaging in WLCSP format and are currently in active production status, ensuring supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

CS47L24-CWZR Substitution: The CS47L24-CWZR is an active production audio codec from Cirrus Logic Inc. with established supply availability. This device maintains ROHS3 compliance and MSL Level 1 rating consistent with the CS47L15-CWZR. The CS47L24-CWZR operates at fixed supply voltages of 1.8V for both analog and digital domains, simplifying power supply design compared to the variable voltage requirements of the CS47L15-CWZR. The device utilizes I2C data interface and features 1 ADC and 2 DACs with dynamic range specifications of 91dB and 94dB respectively. Package footprint is 63-WLCSP (3.39x2.97mm), requiring PCB layout modification from the original 70-WLCSP design.

CS47L35-CWZR Substitution: The CS47L35-CWZR is an active production audio hub device from Cirrus Logic Inc. classified as an embedded integrated circuit. This component maintains full ROHS3 compliance and MSL Level 1 rating. The CS47L35-CWZR supports multiple data interfaces including I2C, SLIMbus, and SPI, providing interface flexibility. The device operates at 1.26V core voltage and 3.6V I/O voltage with a clock rate of 450 MIPS. Package footprint is 101-WLCSP (4.56x3.65mm), representing a larger form factor than the original CS47L15-CWZR. This device is suitable for applications requiring enhanced processing capability and multi-protocol interface support.

Both substitute parts are manufactured by the same supplier, maintain equivalent environmental and compliance certifications, and operate within the same temperature range as the original component.

Frequently Asked Questions (FAQ)

Q: Can the CS47L24-CWZR directly replace the CS47L15-CWZR without PCB modifications?

A: No. The CS47L24-CWZR uses a 63-WLCSP package (3.39x2.97mm) compared to the CS47L15-CWZR's 70-WLCSP package (3.01x4.61mm). PCB layout and footprint modifications are required. Additionally, the data interface differs (I2C versus SPI), requiring firmware and control circuit adjustments.

Q: What are the key differences in ADC/DAC configuration between these devices?

A: The CS47L15-CWZR provides 3 ADCs and 3 DACs. The CS47L24-CWZR provides 1 ADC and 2 DACs. The CS47L35-CWZR does not specify ADC/DAC channel counts in the provided data. Applications requiring symmetric 3/3 channel configuration must evaluate functional requirements against the reduced channel count of the CS47L24-CWZR.

Q: Are all three devices RoHS3 compliant?

A: Yes. The CS47L15-CWZR, CS47L24-CWZR, and CS47L35-CWZR are all ROHS3 compliant with MSL Level 1 rating and REACH unaffected status.

Q: What is the primary advantage of the CS47L35-CWZR over the CS47L24-CWZR?

A: The CS47L35-CWZR supports multiple data interfaces (I2C, SLIMbus, and SPI) and operates at a higher clock rate of 450 MIPS. The larger 101-WLCSP package accommodates additional functionality. Selection depends on specific interface and processing requirements of the target application.

Q: Are supply voltages compatible across all three devices?

A: No. The CS47L15-CWZR requires 1.71V to 1.89V analog and 1.14V to 1.26V digital supply. The CS47L24-CWZR requires fixed 1.8V supply for both domains. The CS47L35-CWZR requires 1.26V core and 3.6V I/O voltage. Power supply circuit redesign is necessary for substitution.

Q: What is the current inventory status for each device?

A: CS47L15-CWZR: 3,791 pieces (obsolete status). CS47L24-CWZR: 19,662 pieces (active). CS47L35-CWZR: 10,076 pieces (active). Active production devices offer superior long-term supply chain availability.