PCM56UG4 Equivalent & Substitute Parts

Part Overview

The PCM56UG4 is a 16-bit audio digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for audio signal processing applications. It features a single-channel PCM interface with dual supply voltage operation and is housed in a 16-SOIC surface mount package. The PCM56UG4 is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and component procurement.

Substiute Parts

PCM56UG4

Texas InstrumentsIn Stock: 976PCM56UG4 Datasheet

Current PartRFQ

PCM56U

Texas InstrumentsIn Stock: 1635PCM56U Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCM56UG4 is based on strict equivalence across the following critical parameters:

• Resolution and Channel Configuration: 16-bit, single-channel audio DAC
• Data Interface: PCM protocol compatibility
• Electrical Specifications: Dual ± supply voltage with identical operating range (±4.75V ~ 13.2V)
• Operating Temperature Range: -25°C ~ 70°C
• Package Compatibility: 16-SOIC surface mount package with identical physical dimensions (0.295", 7.50mm Width)
• Compliance Standards: ROHS3 compliance and identical moisture sensitivity level (MSL 3)

The PCM56U is identified as a manufacturer-recommended substitute. It maintains full electrical and mechanical compatibility with the PCM56UG4 while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The PCM56U is the appropriate substitute for the discontinued PCM56UG4. Both components are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters. The PCM56U offers the advantage of active product status, ensuring continued availability and manufacturing support. Both parts comply with ROHS3 standards and carry identical moisture sensitivity ratings, confirming full compatibility for direct replacement in existing designs. The PCM56U is supplied in standard tube packaging, which is suitable for production environments.

Frequently Asked Questions (FAQ)

Q: Can the PCM56U be used as a direct replacement for the PCM56UG4?

A: Yes. The PCM56U is electrically and mechanically equivalent to the PCM56UG4. Both components feature identical 16-bit audio DAC specifications, PCM data interface, dual ± supply voltage operation, 16-SOIC package dimensions, and compliance certifications. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The PCM56UG4 is discontinued at DiGi Electronics. The PCM56U provides an active, manufacturer-recommended alternative with identical performance characteristics and full pin-for-pin compatibility.

Q: Are the package dimensions identical?

A: Yes. Both the PCM56UG4 and PCM56U use the 16-SOIC package with identical physical dimensions of 0.295" × 7.50mm width. They are mechanically interchangeable on PCBs designed for either part.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the PCM56UG4 and PCM56U are ROHS3 compliant with identical moisture sensitivity levels (MSL 3, 168 Hours). They meet the same environmental and regulatory requirements.

Q: What is the difference in packaging between the two parts?

A: The PCM56UG4 packaging specification is not defined in available data. The PCM56U is supplied in tube packaging, which is standard for production quantities and automated assembly processes.

Q: Are the operating temperature ranges the same?

A: Yes. Both parts operate across the identical temperature range of -25°C to 70°C, ensuring equivalent thermal performance in the same application environments.