PCM3793RHBR Equivalent & Substitute Parts

Part Overview

The PCM3793RHBR is a stereo audio codec interface manufactured by Texas Instruments, designed for 16-bit serial audio applications. This device integrates two analog-to-digital converters (ADCs) and two digital-to-analog converters (DACs) with Sigma-Delta modulation architecture. The PCM3793RHBR carries a product status of "Not For New Designs," which necessitates identification of equivalent substitute components for ongoing production and new development initiatives. The active product variant PCM3793ARHBR provides a direct functional replacement with current manufacturing support.

Substiute Parts

PCM3793RHBR

Texas InstrumentsIn Stock: 1697PCM3793RHBR Datasheet

Current PartRFQ

PCM3793ARHBR

Texas InstrumentsIn Stock: 1803PCM3793ARHBR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PCM3793RHBR is determined by strict equivalence across the following critical parameters:

• Stereo audio codec architecture with 16-bit resolution
• Serial data interface configuration
• Dual ADC and dual DAC topology with Sigma-Delta modulation
• Identical signal-to-noise ratio specifications (90 dB ADC / 93 dB DAC)
• Identical dynamic range specifications (90 dB ADC / 93 dB DAC)
• Matching analog supply voltage range (2.4V ~ 3.6V)
• Matching digital supply voltage range (1.71V ~ 3.6V)
• Operating temperature range of -40°C ~ 85°C
• 32-VFQFN package with exposed pad configuration
• Surface mount mounting type
• ROHS3 compliance and MSL 2 rating

The PCM3793ARHBR meets all substitution criteria as a direct equivalent component manufactured by Texas Instruments with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The PCM3793ARHBR is the direct substitute for the PCM3793RHBR. Both components share identical electrical specifications, mechanical packaging, and compliance certifications. The primary distinction is product lifecycle status: the PCM3793RHBR is designated "Not For New Designs," while the PCM3793ARHBR maintains "Active" status with current manufacturing support.

For applications currently using the PCM3793RHBR, transition to the PCM3793ARHBR is supported without circuit modification or design revision. Both components are ROHS3 compliant and carry identical MSL 2 ratings, ensuring compatibility with standard surface mount assembly processes and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the PCM3793ARHBR directly replace the PCM3793RHBR in existing designs?

A: Yes. The PCM3793ARHBR is a direct functional equivalent with identical electrical performance, signal-to-noise specifications, dynamic range, supply voltage requirements, operating temperature range, and 32-VFQFN package configuration. No circuit modifications are required.

Q: What is the significance of the "Not For New Designs" status on the PCM3793RHBR?

A: This designation indicates that Texas Instruments does not recommend the PCM3793RHBR for new product development. The PCM3793ARHBR, with "Active" status, is the recommended component for new designs and ongoing production.

Q: Are the package dimensions and pin configurations identical between these parts?

A: Yes. Both the PCM3793RHBR and PCM3793ARHBR use the 32-VFQFN (5x5) package with exposed pad configuration. Pin assignments and mechanical dimensions are identical, enabling direct PCB layout compatibility.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both components are ROHS3 compliant, carry MSL 2 (1 Year) moisture sensitivity ratings, and are REACH unaffected. They meet identical environmental and regulatory requirements.

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

A: Substitution is based on matching 16-bit stereo audio codec architecture, serial data interface, dual ADC/DAC configuration with Sigma-Delta modulation, 90 dB ADC and 93 dB DAC signal-to-noise ratios, 90 dB ADC and 93 dB DAC dynamic range, analog supply voltage range of 2.4V ~ 3.6V, digital supply voltage range of 1.71V ~ 3.6V, and -40°C ~ 85°C operating temperature range.