CS8416-CNZR Equivalent & Substitute Parts

Part Overview

The CS8416-CNZR is an audio receiver IC manufactured by Cirrus Logic Inc., designed for digital audio interfacing applications. This 28-QFN surface mount device supports 8-channel audio reception with I2C and SPI interface capabilities, operating across a 3.3V to 5V supply range and supporting audio specifications from 32kHz to 192kHz.

The CS8416-CNZR carries an Obsolete product status, making identification of suitable substitute components essential for ongoing system support, maintenance, and new production alternatives. The availability of equivalent parts ensures design continuity and supply chain flexibility.

Substiute Parts

CS8416-CNZR

Cirrus Logic Inc.In Stock: 1364CS8416-CNZR Datasheet

Current PartRFQ

CS8416K-CNZR

Cirrus Logic Inc.In Stock: 6925CS8416K-CNZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS8416-CNZR is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 28-QFN (5x5) package format to ensure PCB footprint compatibility and assembly process alignment.

Interface Protocol: I2C and SPI interface support is required to maintain system-level communication compatibility with existing host controllers and firmware implementations.

Operating Temperature Range: The substitute must support the -10°C to 70°C operating temperature specification to function within the same environmental constraints.

Supply Voltage Range: The substitute must operate within or encompass the 3.3V to 5V supply voltage window to ensure compatibility with existing power distribution architectures.

Audio Frequency Support: The substitute must support the 32kHz to 192kHz audio specification range to maintain digital audio interfacing capability.

Compliance Standards: RoHS3 compliance and REACH unaffected status are required to meet regulatory and environmental requirements.

The CS8416K-CNZR qualifies as a manufacturer-recommended substitute based on these parameters, though with specific operational constraints noted in the parameter comparison.

Parameter Comparison

Engineering Selection Recommendations

The CS8416K-CNZR is the manufacturer-recommended substitute for the obsolete CS8416-CNZR. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for electronic component deployment.

Critical Operational Constraints:

The CS8416K-CNZR operates within a narrower supply voltage range (3.13V ~ 3.46V) compared to the CS8416-CNZR (3.3V ~ 5V). System designs must verify that power supply architecture can maintain voltage within the tighter specification window of the substitute part.

The CS8416K-CNZR provides single-channel audio reception, whereas the CS8416-CNZR supports 8-channel operation. Applications requiring multi-channel audio reception must evaluate whether single-channel operation meets functional requirements or if alternative multi-channel solutions are necessary.

The CS8416K-CNZR carries a "Not For New Designs" status, indicating that while it functions as a substitute for legacy system support, it is not recommended for new product development initiatives. For new designs, consultation with Cirrus Logic Inc. regarding current-generation audio receiver components is advised.

The improved moisture sensitivity level (MSL 2 vs. MSL 3) of the CS8416K-CNZR provides extended shelf life and reduced handling risk during storage and assembly operations.

Frequently Asked Questions (FAQ)

Q: Can the CS8416K-CNZR directly replace the CS8416-CNZR in existing designs?

A: Direct replacement is possible only if the system design operates within the CS8416K-CNZR supply voltage range (3.13V ~ 3.46V) and requires only single-channel audio reception. The 28-QFN (5x5) package footprint is identical, enabling PCB-level compatibility. However, firmware and system architecture must accommodate the reduced channel count.

Q: What are the key differences between these parts?

A: The primary differences are supply voltage range (CS8416-CNZR: 3.3V ~ 5V; CS8416K-CNZR: 3.13V ~ 3.46V), channel count (8 vs. 1), and product status (Obsolete vs. Not For New Designs). Both maintain identical package format, interface protocols, and operating temperature range.

Q: Are both parts RoHS compliant?

A: Yes, both the CS8416-CNZR and CS8416K-CNZR are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and deployment.

Q: What is the significance of the MSL rating difference?

A: The CS8416K-CNZR has MSL 2 (1 Year shelf life) compared to the CS8416-CNZR MSL 3 (168 Hours). This indicates the CS8416K-CNZR has superior moisture resistance and longer allowable storage duration before assembly, reducing risk of moisture-induced failures during manufacturing.

Q: Can I use the CS8416K-CNZR in a new product design?

A: The CS8416K-CNZR carries a "Not For New Designs" status. While technically functional, it is not recommended for new product development. Current-generation Cirrus Logic audio receiver components should be evaluated for new designs to ensure long-term product support and availability.

Q: What supply voltage should I use with the CS8416K-CNZR?

A: The CS8416K-CNZR requires operation within 3.13V ~ 3.46V. This narrower range requires precise power supply regulation compared to the broader 3.3V ~ 5V range of the CS8416-CNZR. Verify your system's voltage regulation capability before substitution.