CS4341-KSZ Equivalent & Substitute Parts

Part Overview

The CS4341-KSZ is a 24-bit audio digital-to-analog converter (DAC) manufactured by Cirrus Logic Inc., designed for audio applications requiring 96 kHz sampling rate with SPI interface connectivity. The device operates from single supply voltage (3V–3.6V or 5V) and is housed in a 16-SOIC surface mount package.

This part is classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, production continuity, and system maintenance. Substitute parts must maintain core audio processing capabilities while accommodating potential differences in sampling rate, package form factor, and supply voltage specifications.

Substiute Parts

CS4341-KSZ

Cirrus Logic Inc.In Stock: 16387CS4341-KSZ Datasheet

Current PartRFQ

CS4345-CZZ

Cirrus Logic Inc.In Stock: 5141CS4345-CZZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS4341-KSZ is determined by the following critical parameters:

Core Functional Requirements:

• Audio DAC with 24-bit resolution
• 2-channel output configuration
• SPI digital interface
• Single supply voltage operation

Allowable Variations:

• Sampling rate may exceed 96 kHz (higher performance acceptable)
• Supply voltage range may differ within single-supply topology
• Package form factor may change (surface mount alternatives acceptable)
• Product status may vary (Last Time Buy acceptable for obsolete parts)

The CS4345-CZZ qualifies as a substitute based on these criteria: it maintains 24-bit resolution, 2-channel configuration, SPI interface, and single supply operation while offering enhanced sampling rate capability (192 kHz) and alternative packaging (10-TSSOP).

Parameter Comparison

Engineering Selection Recommendations

CS4341-KSZ (Original Part): Product status is Obsolete. Continued sourcing is not recommended for new designs or production restarts. Existing inventory may be available through authorized distributors.

CS4345-CZZ (Substitute Part): Product status is Last Time Buy, indicating limited future availability. This part maintains functional equivalence through identical 24-bit resolution, 2-channel configuration, and SPI interface. The enhanced sampling rate (192 kHz vs. 96 kHz) provides performance headroom for audio applications. The 10-TSSOP package is smaller than the original 16-SOIC, requiring PCB layout modification. Supply voltage range is compatible with 5V operation; 3V operation requires verification of the 3V–3.47V specification against system requirements. RoHS3 compliance of the substitute part meets current regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can CS4345-CZZ directly replace CS4341-KSZ without design changes?

A: Functional substitution is possible. The SPI interface, 24-bit resolution, and 2-channel configuration are identical. However, the package change from 16-SOIC to 10-TSSOP requires PCB layout modification. Pin-to-pin compatibility must be verified against the respective datasheets before implementation.

Q: What is the impact of the higher sampling rate (192 kHz vs. 96 kHz)?

A: The CS4345-CZZ supports 192 kHz sampling, which exceeds the original 96 kHz specification. Systems designed for 96 kHz operation will function correctly with the substitute part; the higher capability does not create incompatibility. Digital interface timing and clock requirements must remain consistent with system design.

Q: Are there supply voltage compatibility concerns?

A: Both parts operate from single supply voltage. The CS4341-KSZ supports 3V–3.6V and 5V. The CS4345-CZZ supports 3V–3.47V and 5V. For 5V operation, both parts are compatible. For 3V operation, the CS4345-CZZ specification (3V–3.47V) is narrower; system voltage stability must be confirmed within this range.

Q: What are the package footprint differences?

A: CS4341-KSZ uses 16-SOIC (0.154" width, 3.90mm). CS4345-CZZ uses 10-TSSOP (0.118" width, 3.00mm). The substitute part has fewer pins and a smaller footprint. PCB redesign is required; existing footprints are not compatible.

Q: Is the substitute part still available?

A: CS4345-CZZ is classified as Last Time Buy, indicating limited production and availability. Procurement should be prioritized if this part is selected for design implementation.

Q: Are regulatory and compliance certifications equivalent?

A: Both parts are REACH Unaffected. The CS4345-CZZ is RoHS3 Compliant, meeting current environmental standards. Moisture sensitivity level is identical (MSL 2, 1 Year) for both parts.