CS5346-CQZR Equivalent & Substitute Parts

Part Overview

The CS5346-CQZR is a 24-bit audio ADC (Analog-to-Digital Converter) with 192 kHz sampling rate, manufactured by Cirrus Logic Inc. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates with dual supply voltages (3.3V and 5V) and is housed in a 48-LQFP surface mount package. Due to its obsolete status, the CS5346K-CQZR serves as the primary manufacturer-recommended substitute.

Substiute Parts

CS5346-CQZR

Cirrus Logic Inc.In Stock: 5774CS5346-CQZR Datasheet

Current PartRFQ

CS5346K-CQZR

Cirrus Logic Inc.In Stock: 2688CS5346K-CQZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS5346-CQZR is determined by the following critical parameters:

• Channel Count: 6 channels (fixed requirement)
• Resolution: 24 bits (fixed requirement)
• Sampling Rate: 192 kHz (fixed requirement)
• Package Type: 48-LQFP (7x7) surface mount (fixed requirement)
• Operating Temperature Range: -40°C to 85°C (fixed requirement)
• Compliance Standards: ROHS3 Compliant, MSL 3 rating (fixed requirement)

The CS5346K-CQZR meets all these core parameters while offering enhanced data interface options (I2C and SPI in addition to Serial) and refined voltage supply specifications. Both parts share identical channel configuration, resolution, sampling rate, package geometry, and environmental ratings, establishing direct substitutability.

Parameter Comparison

Engineering Selection Recommendations

The CS5346K-CQZR is the manufacturer-recommended substitute for the obsolete CS5346-CQZR. Both parts maintain identical core specifications across channel count, resolution, sampling rate, package geometry, and environmental operating range. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

The CS5346K-CQZR provides expanded data interface capabilities (I2C and SPI) compared to the original Serial interface, offering design flexibility for new implementations. Voltage supply specifications are refined to defined ranges rather than nominal values, supporting precise power supply design.

Both parts carry ROHS3 compliance and identical MSL ratings, meeting current regulatory and manufacturing requirements. The identical 48-LQFP package ensures direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the CS5346K-CQZR directly replace the CS5346-CQZR on existing PCBs?

A: Yes. Both parts use the 48-LQFP (7x7) package with identical pinout and footprint. No PCB layout changes are required for physical substitution.

Q: What is the primary reason for substitution?

A: The CS5346-CQZR is obsolete. The CS5346K-CQZR is the manufacturer-recommended active production alternative, ensuring continued availability and supply chain support.

Q: Are the audio specifications identical between these parts?

A: Yes. Both parts provide 6-channel, 24-bit resolution at 192 kHz sampling rate, meeting identical audio performance requirements.

Q: How do the data interfaces differ?

A: The CS5346-CQZR supports Serial interface only. The CS5346K-CQZR supports I2C and SPI interfaces, providing expanded communication options for system integration.

Q: Are voltage supply requirements compatible?

A: Both parts operate across 3.3V and 5V supply ranges. The CS5346K-CQZR specifies tighter voltage ranges (3.13V–3.47V and 4.75V–5.25V), which fall within the nominal operating windows of the original part.

Q: Do both parts meet current compliance standards?

A: Yes. Both parts are ROHS3 compliant with MSL 3 rating (168 hours), meeting current regulatory and manufacturing requirements.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -40°C to 85°C, supporting identical thermal specifications for industrial and commercial applications.