PCM1754DBQRG4 Equivalent & Substitute Parts

Part Overview

The PCM1754DBQRG4 is a 24-bit audio digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for high-resolution audio applications requiring I2S interface compatibility. This component features dual-channel output with a 200 kHz sampling rate and operates from a single 5V supply across the industrial temperature range of -40°C to 85°C.

The PCM1754DBQRG4 is discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure project timelines are not compromised due to component unavailability.

Substiute Parts

PCM1754DBQRG4

Texas InstrumentsIn Stock: 1025PCM1754DBQRG4 Datasheet

Current PartRFQ

PCM1754DBQR

Texas InstrumentsIn Stock: 95335PCM1754DBQR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCM1754DBQRG4 is determined by strict equivalence across the following critical parameters:

• Manufacturer & Base Product Number: Both the main part and substitute must be from Texas Instruments and share the base product number PCM1754
• Electrical Specifications: Identical resolution (24 bits), sampling rate (200 kHz), channel count (2), data interface (I2S), and supply voltage (5V)
• Package & Pinout: Both must use the 16-SSOP package with identical mechanical dimensions (0.154", 3.90mm Width)
• Environmental & Compliance: Operating temperature range, RoHS3 compliance, and MSL rating must match
• Packaging Format: The substitute may differ in tape format (Cut Tape & Digi-Reel® versus Tape & Reel) without affecting electrical or mechanical compatibility

The PCM1754DBQR meets all substitution criteria and is the direct equivalent part available in active production status.

Parameter Comparison

Engineering Selection Recommendations

The PCM1754DBQR is the direct substitute for the PCM1754DBQRG4. Both parts are manufactured by Texas Instruments and share identical electrical, mechanical, and environmental specifications. The primary distinction is product status: the PCM1754DBQRG4 is discontinued, while the PCM1754DBQR maintains active production status with significantly higher inventory availability (95,300 units versus 967 units).

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory requirements are satisfied. The packaging format difference (Tape & Reel versus Cut Tape & Digi-Reel®) does not affect component functionality or PCB assembly compatibility, as the physical package dimensions and pinout remain identical.

Frequently Asked Questions (FAQ)

Q: Can the PCM1754DBQR be used as a direct replacement for the PCM1754DBQRG4?

A: Yes. Both parts are electrically and mechanically identical. They share the same base product number, resolution, sampling rate, channel count, data interface, supply voltage, operating temperature range, and 16-SSOP package configuration.

Q: What is the difference between the PCM1754DBQRG4 and PCM1754DBQR?

A: The primary differences are product status and packaging format. The PCM1754DBQRG4 is discontinued and supplied in Tape & Reel format. The PCM1754DBQR is in active production and supplied in Cut Tape & Digi-Reel® format. All electrical and mechanical specifications are identical.

Q: Will the PCM1754DBQR work with existing PCB designs for the PCM1754DBQRG4?

A: Yes. The 16-SSOP package dimensions (0.154", 3.90mm Width) and pinout are identical, ensuring direct compatibility with existing PCB layouts and assembly processes.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts maintain ROHS3 compliance, REACH unaffected status, and identical MSL ratings (1 - Unlimited). Regulatory requirements are satisfied by either part.

Q: What is the inventory status of the substitute part?

A: The PCM1754DBQR has 95,300 units in stock, compared to 967 units for the discontinued PCM1754DBQRG4. The substitute part offers significantly higher availability for immediate procurement.