CS5343-DZZ Equivalent & Substitute Parts

Part Overview

The CS5343-DZZ is a 24-bit audio ADC (Analog-to-Digital Converter) manufactured by Cirrus Logic Inc., designed for data acquisition applications requiring dual-channel audio digitization at 96 kHz sampling rate. This component operates with flexible dual supply voltage options (3.1V–4.6V or 4.75V–5.25V) and is housed in a compact 10-TSSOP surface mount package.

The CS5343-DZZ has reached Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for new designs or legacy system replacements.

Substiute Parts

CS5343-DZZ

Cirrus Logic Inc.In Stock: 1685CS5343-DZZ Datasheet

Current PartRFQ

CS5361K-DZZ

Cirrus Logic Inc.In Stock: 2353CS5361K-DZZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS5343-DZZ is determined by the following critical parameters:

• Resolution: 24-bit audio ADC capability
• Number of Channels: Dual-channel (2-channel) configuration
• Sampling Rate: Minimum 96 kHz support
• Data Interface: Serial or I2S protocol compatibility
• Mounting Type: Surface mount technology
• Supply Voltage Compatibility: Operating voltage ranges that overlap or encompass the original design requirements
• Operating Temperature Range: Support for industrial temperature range (-40°C to 105°C or equivalent)
• RoHS Compliance: ROHS3 Compliant status for regulatory alignment

The CS5361K-DZZ qualifies as a substitute based on matching core audio ADC functionality (24-bit resolution, 2-channel configuration) and exceeding the sampling rate requirement (192 kHz vs. 96 kHz). Both components are manufactured by Cirrus Logic Inc., share ROHS3 compliance, and support surface mount integration.

Parameter Comparison

Engineering Selection Recommendations

The CS5361K-DZZ is an active product with ongoing manufacturer support, making it suitable for new designs and long-term supply chain continuity. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and consumer applications.

Key considerations for component selection:

CS5343-DZZ: Appropriate only for legacy system maintenance or existing inventory utilization. Last Time Buy status indicates limited future availability.

CS5361K-DZZ: Recommended for new designs requiring audio ADC functionality. Active product status ensures sustained availability, technical support, and supply chain reliability. The higher sampling rate (192 kHz) and I2S interface provide enhanced performance headroom for advanced audio applications.

Design integration requires verification of PCB layout compatibility due to package size difference (10-TSSOP vs. 24-TSSOP) and supply voltage architecture changes (single supply vs. separate analog/digital supplies).

Frequently Asked Questions (FAQ)

Q: Can CS5361K-DZZ directly replace CS5343-DZZ in existing designs?

A: Functional substitution is possible based on matching 24-bit resolution and 2-channel configuration. However, physical and electrical integration changes are required: the CS5361K-DZZ uses a larger 24-TSSOP package, requires separate analog and digital supply voltages, and implements I2S interface instead of Serial. PCB redesign and firmware adaptation are necessary.

Q: What is the impact of the different data interfaces (Serial vs. I2S)?

A: Serial and I2S are distinct digital audio protocols. I2S (Inter-IC Sound) is a standardized interface widely used in modern audio systems, while Serial represents a proprietary or legacy protocol. Interface compatibility depends on the host processor or audio codec. System-level integration testing is required to confirm compatibility.

Q: Why does CS5361K-DZZ have a lower maximum operating temperature (-40°C to 85°C vs. -40°C to 105°C)?

A: Operating temperature range is determined by component design and manufacturing specifications. The CS5343-DZZ supports extended high-temperature operation to 105°C, while CS5361K-DZZ is rated to 85°C. For applications requiring operation above 85°C, the CS5343-DZZ remains the only qualified option.

Q: What does the different Moisture Sensitivity Level (MSL) mean for handling and storage?

A: MSL 2 (CS5343-DZZ) allows 1 year of dry storage before reflow soldering. MSL 3 (CS5361K-DZZ) requires reflow within 168 hours of moisture exposure. The CS5361K-DZZ demands more stringent moisture control during manufacturing and assembly. Proper baking procedures must be followed before soldering if storage time exceeds the specified limit.

Q: Is the CS5361K-DZZ suitable for applications currently using CS5343-DZZ?

A: Suitability depends on specific application requirements. The CS5361K-DZZ exceeds performance specifications (192 kHz sampling vs. 96 kHz) and maintains core audio ADC functionality. However, package size, supply voltage architecture, and interface protocol differences require design validation before implementation in production systems.