CS5330A-KSZ Equivalent & Substitute Parts

Part Overview

The CS5330A-KSZ is an 18-bit sigma-delta analog-to-digital converter manufactured by Cirrus Logic Inc., designed for dual-channel data acquisition applications. This component features simultaneous sampling capability with a 48 kHz sampling rate and operates from a single 5V supply. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

CS5330A-KSZ

Cirrus Logic Inc.In Stock: 10156CS5330A-KSZ Datasheet

Current PartRFQ

CS5343-DZZ

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CS5343-DZZ serves as the manufacturer-recommended substitute for the CS5330A-KSZ. Substitution eligibility is determined by the following critical parameters:

• Resolution: Both devices support multi-bit analog-to-digital conversion (18-bit primary vs. 24-bit substitute)
• Channel Configuration: Both provide dual-channel input capability
• Architecture: Both employ sigma-delta conversion topology
• Data Interface: Both utilize serial communication protocols
• Supply Voltage Compatibility: The CS5343-DZZ supports dual supply ranges (3.1V–4.6V and 4.75V–5.25V), encompassing the CS5330A-KSZ's 5V requirement
• Mounting Type: Both are surface-mount devices
• Manufacturer: Both are Cirrus Logic Inc. products within the audio/data acquisition product line

The CS5343-DZZ represents an enhanced specification alternative with higher resolution (24-bit vs. 18-bit) and increased sampling rate capability (96 kHz vs. 48 kHz), making it suitable for applications requiring improved performance headroom.

Parameter Comparison

Engineering Selection Recommendations

The CS5343-DZZ is the manufacturer-designated substitute for the obsolete CS5330A-KSZ. Selection of this alternative is supported by the following factors:

Product Status Alignment: The CS5343-DZZ carries a "Last Time Buy" status, indicating continued availability with a defined end-of-life window, whereas the CS5330A-KSZ is already obsolete with no further production planned.

Compliance and Certifications: The CS5343-DZZ meets ROHS3 compliance requirements and maintains REACH Unaffected status, matching the regulatory framework of the original part. Both components carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Supply Voltage Compatibility: The CS5343-DZZ's dual supply voltage range (3.1V–4.6V and 4.75V–5.25V) encompasses the CS5330A-KSZ's 5V operating point, ensuring direct compatibility in existing 5V supply designs.

Performance Enhancement: The substitute provides higher resolution (24-bit vs. 18-bit) and increased sampling rate (96 kHz vs. 48 kHz), delivering improved signal fidelity for data acquisition applications without requiring fundamental circuit redesign.

Package Transition Consideration: The CS5343-DZZ uses a 10-TSSOP package versus the original 8-SOIC package. PCB layout modifications are required to accommodate the different pin count and footprint geometry.

Frequently Asked Questions (FAQ)

Q: Can the CS5343-DZZ directly replace the CS5330A-KSZ without circuit modifications?

A: The CS5343-DZZ is electrically compatible with the CS5330A-KSZ in terms of supply voltage and functional operation. However, the package change from 8-SOIC to 10-TSSOP requires PCB layout redesign. Pin-to-pin functional mapping must be verified against device datasheets before implementation.

Q: What are the key differences in performance between these two devices?

A: The CS5343-DZZ offers enhanced specifications: 24-bit resolution versus 18-bit, 96 kHz sampling rate versus 48 kHz, and an extended operating temperature range (-40°C to 105°C versus -10°C to 70°C). These improvements provide greater signal resolution and temperature stability for demanding applications.

Q: Why is the CS5330A-KSZ classified as obsolete?

A: The CS5330A-KSZ has reached end-of-life status and is no longer manufactured by Cirrus Logic Inc. The CS5343-DZZ represents the current-generation alternative within the manufacturer's product portfolio.

Q: Are there any supply voltage considerations when substituting these parts?

A: Both devices operate at 5V within their specified supply ranges. The CS5343-DZZ additionally supports 3.1V–4.6V operation, providing flexibility for lower-voltage system designs. Existing 5V designs require no supply circuit modifications.

Q: What is the moisture sensitivity level for both components?

A: Both the CS5330A-KSZ and CS5343-DZZ carry MSL 2 (1 Year) classification, indicating identical moisture handling and storage requirements.

Q: How does the package change affect board design?

A: The transition from 8-SOIC to 10-TSSOP involves a different footprint, pin count increase from 8 to 10, and reduced package width (5.30mm to 3.00mm). Complete PCB redesign of the component area is necessary, including trace routing and decoupling capacitor placement adjustments.