CS4350-DZZR Equivalent & Substitute Parts

Part Overview

The CS4350-DZZR is a 24-bit audio digital-to-analog converter (DAC) manufactured by Cirrus Logic Inc., designed for high-fidelity audio applications with 192 kHz sampling rate capability. This component operates as a single-supply device with SPI interface connectivity and is packaged in a 24-TSSOP surface-mount configuration. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring 24-bit audio DAC functionality at 192 kHz sampling rates.

Substiute Parts

CS4350-DZZR

Cirrus Logic Inc.In Stock: 2389CS4350-DZZR Datasheet

Current PartRFQ

CS4398K-CZZR

Cirrus Logic Inc.In Stock: 4545CS4398K-CZZR Datasheet

MFR RecommendedRFQ

WM8523GEDT/R

Cirrus Logic Inc.In Stock: 9507WM8523GEDT/R Datasheet

MFR RecommendedRFQ

WM8524CGEDT/R

Cirrus Logic Inc.In Stock: 88411WM8524CGEDT/R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS4350-DZZR is determined by the following core parameters: 24-bit resolution, 192 kHz sampling rate capability, 2-channel audio DAC architecture, and surface-mount packaging. The substitute parts identified maintain these critical functional specifications while accommodating variations in data interface protocols (SPI, I2C, or I2S), supply voltage configurations, operating temperature ranges, and package pin counts.

The three substitute parts are grouped as follows:

CS4398K-CZZR: Maintains 24-bit resolution and 192 kHz sampling rate with dual-channel configuration. Supports both I2C and SPI interfaces, providing interface flexibility. Operates with analog and digital supply voltages (4.75V–5.25V and 3.1V–5.25V). Packaged in 28-TSSOP with narrower operating temperature range (-10°C to 70°C). Product status is Active.

WM8523GEDT/R: Maintains 24-bit resolution and 192 kHz sampling rate with dual-channel configuration. Supports both I2C and SPI interfaces. Single supply operation (2.97V–3.63V). Packaged in 20-TSSOP with extended operating temperature range (-40°C to 85°C). Product status is Active.

WM8524CGEDT/R: Maintains 24-bit resolution and 192 kHz sampling rate with dual-channel configuration. Operates with I2S interface. Single supply operation (2.97V–3.63V). Packaged in 16-TSSOP with extended operating temperature range (-40°C to 85°C). Moisture sensitivity level is 1 (Unlimited). Product status is Active.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the main part. All parts are manufactured by Cirrus Logic Inc., ensuring consistent design philosophy and quality standards.

CS4398K-CZZR is suitable for applications requiring dual interface support (I2C and SPI) with separate analog and digital supply rails. The narrower operating temperature range (-10°C to 70°C) restricts use in extended temperature environments. Active product status ensures long-term availability.

WM8523GEDT/R is suitable for applications requiring single-supply operation (2.97V–3.63V) with dual interface support (I2C and SPI). The extended operating temperature range (-40°C to 85°C) accommodates industrial and automotive environments. Active product status ensures supply continuity.

WM8524CGEDT/R is suitable for applications with I2S interface requirements and single-supply operation (2.97V–3.63V). The extended operating temperature range (-40°C to 85°C) and MSL 1 rating provide superior reliability in moisture-sensitive environments. The smallest package footprint (16-TSSOP) reduces PCB area requirements. Active product status ensures long-term availability.

Frequently Asked Questions (FAQ)

Q: Can CS4398K-CZZR directly replace CS4350-DZZR in existing designs?

A: Direct replacement requires interface protocol verification. CS4398K-CZZR supports both I2C and SPI, while CS4350-DZZR uses SPI only. The 28-TSSOP package differs from the 24-TSSOP, requiring PCB layout modifications. Operating temperature range is narrower (-10°C to 70°C versus -40°C to 105°C).

Q: What are the key differences between WM8523GEDT/R and WM8524CGEDT/R?

A: Both maintain 24-bit resolution and 192 kHz sampling rate. WM8523GEDT/R supports I2C and SPI interfaces with 20-TSSOP packaging. WM8524CGEDT/R uses I2S interface exclusively with 16-TSSOP packaging and superior moisture sensitivity (MSL 1 versus MSL 3).

Q: Are all substitute parts suitable for high-temperature applications?

A: CS4398K-CZZR operates only to 70°C, limiting high-temperature use. WM8523GEDT/R and WM8524CGEDT/R both operate to 85°C. The original CS4350-DZZR operates to 105°C, providing the widest temperature range.

Q: What supply voltage considerations apply to substitution?

A: CS4350-DZZR requires single-supply operation. CS4398K-CZZR requires separate analog and digital supplies (4.75V–5.25V and 3.1V–5.25V). WM8523GEDT/R and WM8524CGEDT/R operate on single supply (2.97V–3.63V), simplifying power distribution design.

Q: How do package differences affect PCB design?

A: CS4350-DZZR uses 24-TSSOP (0.173", 4.40mm width). CS4398K-CZZR uses 28-TSSOP. WM8523GEDT/R uses 20-TSSOP. WM8524CGEDT/R uses 16-TSSOP (smallest footprint). Package changes require complete PCB layout revision and thermal management reassessment.

Q: Which substitute part offers the best long-term availability?

A: All three substitute parts carry Active product status, ensuring ongoing manufacturing and supply. CS4350-DZZR is Last Time Buy, indicating production discontinuation.