PCM1774RGPRG4 Equivalent & Substitute Parts

Part Overview

The PCM1774RGPRG4 is a 16-bit audio digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for audio applications requiring dual-channel conversion at 50 kHz sampling rate. The device integrates DSP and I2S digital audio interfaces, operating from a dual supply voltage range of 1.7V to 3.6V. This part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements.

Substiute Parts

PCM1774RGPRG4

Texas InstrumentsIn Stock: 2771PCM1774RGPRG4 Datasheet

Current PartRFQ

PCM1774RGPR

Texas InstrumentsIn Stock: 45517PCM1774RGPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCM1774RGPRG4 is determined by strict equivalence across the following critical parameters:

• Functional Specifications: 16-bit resolution, 2-channel audio DAC, 50 kHz sampling rate capability
• Digital Interface Compatibility: DSP and I2S protocol support
• Electrical Characteristics: Dual supply voltage range 1.7V to 3.6V, operating temperature -40°C to 85°C
• Physical Package: 20-VFQFN Exposed Pad surface mount package (4x4 mm footprint)
• Compliance Standards: ROHS3 compliance, MSL 2 rating, REACH unaffected status

The PCM1774RGPR variant meets all these criteria and is identified as the manufacturer-recommended substitute. The primary distinction between the main part and substitute is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The PCM1774RGPR is the direct functional equivalent of the PCM1774RGPRG4 and is suitable for substitution in all applications requiring a 16-bit, 2-channel audio DAC with DSP and I2S interface support. The substitute part maintains identical electrical specifications, package footprint, and compliance certifications.

The primary advantage of selecting PCM1774RGPR is its active product status, ensuring continued availability and supply chain reliability. Both parts are ROHS3 compliant and carry identical moisture sensitivity ratings, making them interchangeable from a manufacturing and assembly perspective.

The packaging difference (Tube versus Tape & Reel) affects only procurement and assembly processes; the component itself is electrically and mechanically identical.

Frequently Asked Questions (FAQ)

Q: Are PCM1774RGPRG4 and PCM1774RGPR electrically identical?

A: Yes. Both parts share identical specifications for resolution (16-bit), channel count (2), sampling rate (50 kHz), data interfaces (DSP, I2S), supply voltage (1.7V to 3.6V), operating temperature range (-40°C to 85°C), and package type (20-VFQFN Exposed Pad).

Q: What is the difference between these two part numbers?

A: The primary differences are product status and packaging format. PCM1774RGPRG4 is discontinued; PCM1774RGPR is active. PCM1774RGPRG4 is supplied in Tube packaging, while PCM1774RGPR is supplied in Tape & Reel format.

Q: Can I use PCM1774RGPR as a direct replacement on existing PCBs designed for PCM1774RGPRG4?

A: Yes. The physical package footprint (20-VFQFN Exposed Pad, 4x4 mm) is identical, and all electrical specifications match. No PCB redesign is required.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical ROHS3 compliance, MSL 2 rating, REACH unaffected status, and ECCN/HTSUS classifications.

Q: Which part should I specify for new designs?

A: PCM1774RGPR should be specified for new designs due to its active product status and assured long-term availability.