PCM3793RHBT Equivalent & Substitute Parts

Part Overview

The PCM3793RHBT is a stereo audio codec interface manufactured by Texas Instruments, designed for 16-bit serial audio applications. This device integrates dual ADCs and DACs with Sigma-Delta conversion architecture, supporting analog supply voltages from 2.4V to 3.6V and digital supply from 1.71V to 3.6V. The component is housed in a 32-VQFN (5x5) package with exposed pad for surface mount applications.

The PCM3793RHBT carries a product status of "Not For New Designs," indicating that Texas Instruments has discontinued active development for this part. This status necessitates identification of equivalent alternatives for ongoing production requirements, maintenance applications, or legacy system support where the original specification must be maintained.

Substiute Parts

PCM3793RHBT

Texas InstrumentsIn Stock: 1210PCM3793RHBT Datasheet

Current PartRFQ

PCM3793ARHBT

Burr BrownIn Stock: 8756PCM3793ARHBT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PCM3793RHBT is determined by strict equivalence across the following critical parameters:

• Audio codec type and channel configuration (stereo, 2 ADCs / 2 DACs)
• Resolution specification (16-bit)
• Serial data interface architecture
• Sigma-Delta conversion methodology
• Signal-to-noise ratio and dynamic range performance (90 dB ADC / 93 dB DAC minimum)
• Analog and digital supply voltage ranges (2.4V ~ 3.6V analog; 1.71V ~ 3.6V digital)
• Operating temperature range (-40°C ~ 85°C)
• Physical package format (32-VQFN 5x5 with exposed pad)
• Surface mount mounting type
• Regulatory compliance (ROHS3, EAR99 classification)

The PCM3793ARHBT meets all substitution criteria as a direct functional equivalent within the PCM3793 base product family.

Parameter Comparison

Engineering Selection Recommendations

The PCM3793ARHBT is a direct functional substitute for the PCM3793RHBT. Both components share identical electrical specifications, package geometry, and regulatory classifications. The primary distinction is product lifecycle status: the PCM3793RHBT is designated "Not For New Designs," while the PCM3793ARHBT maintains "Active" status from Burr Brown.

For applications requiring the PCM3793RHBT specification, the PCM3793ARHBT provides continuity of supply and ongoing manufacturer support. Both parts comply with ROHS3 requirements and carry identical export classifications (EAR99). The identical package format (32-VQFN 5x5 with exposed pad) and electrical performance characteristics ensure direct PCB-level compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can the PCM3793ARHBT replace the PCM3793RHBT in existing designs?

A: Yes. The PCM3793ARHBT is electrically and mechanically equivalent to the PCM3793RHBT. Both components feature identical 16-bit stereo audio codec architecture, dual ADC/DAC configuration, signal-to-noise ratios (90 dB ADC / 93 dB DAC), supply voltage ranges, operating temperature specifications, and 32-VQFN package format. No design changes are required.

Q: What is the significance of the "Not For New Designs" status on the PCM3793RHBT?

A: This designation indicates that Texas Instruments has concluded active development and support for the PCM3793RHBT. The part remains available from existing inventory but will not receive design updates or long-term supply guarantees. The PCM3793ARHBT, with "Active" status, provides an alternative with ongoing manufacturer commitment.

Q: Are there packaging differences between these parts?

A: Both the PCM3793RHBT and PCM3793ARHBT use identical 32-VQFN (5x5) surface mount packages with exposed pads. Moisture sensitivity levels and handling requirements are equivalent. No PCB layout modifications are necessary for substitution.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are ROHS3 compliant and carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. Regulatory documentation and compliance certifications are equivalent.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is based on matching: 16-bit resolution, stereo audio codec type with 2 ADCs and 2 DACs, serial data interface, Sigma-Delta architecture, 90 dB ADC and 93 dB DAC signal-to-noise ratios, 2.4V to 3.6V analog supply, 1.71V to 3.6V digital supply, and -40°C to 85°C operating temperature range. The PCM3793ARHBT meets all these criteria.