PCM1774RGPTG4 Equivalent & Substitute Parts

Part Overview

The PCM1774RGPTG4 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 with DSP and I2S interface support. The device operates across a supply voltage range of 1.7V to 3.6V and is housed in a 20-pin QFN package with exposed pad.

This part is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and replacement applications.

Substiute Parts

PCM1774RGPTG4

Texas InstrumentsIn Stock: 1089PCM1774RGPTG4 Datasheet

Current PartRFQ

PCM1774RGPT

Texas InstrumentsIn Stock: 1239PCM1774RGPT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCM1774RGPTG4 is determined by strict equivalence across the following critical parameters:

• Functional Type: DAC, Audio with dual-channel configuration
• Resolution & Sampling Rate: 16-bit resolution at 50 kHz sampling rate
• Data Interface: DSP and I2S protocol support
• Electrical Specifications: Supply voltage range 1.7V to 3.6V, operating temperature -40°C to 85°C
• Package & Mounting: 20-VFQFN Exposed Pad, surface mount configuration
• Compliance: ROHS3 compliance, MSL 2 rating

The substitute part PCM1774RGPT maintains identical electrical, functional, and mechanical specifications. The primary distinction is packaging format: the main part is supplied in tube packaging, while the substitute is available in Tape & Reel (TR) format. Both parts share the same base product number (PCM1774) and are manufactured by Texas Instruments.

Parameter Comparison

Engineering Selection Recommendations

The PCM1774RGPT is a direct functional and electrical equivalent to the PCM1774RGPTG4. Both parts are manufactured by Texas Instruments and maintain identical specifications across all critical parameters: 16-bit resolution, 50 kHz sampling rate, dual-channel audio DAC functionality, DSP/I2S interface support, and 1.7V to 3.6V supply voltage range.

The primary distinction is product status and packaging format. The PCM1774RGPTG4 is discontinued, while the PCM1774RGPT maintains active status with higher inventory availability (1227 units in stock versus 1026 units for the main part). The substitute part is supplied in Tape & Reel format, which is standard for automated assembly processes.

Both parts carry ROHS3 compliance and identical MSL 2 ratings, ensuring compatibility with current manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can PCM1774RGPT be used as a direct replacement for PCM1774RGPTG4?

A: Yes. Both parts are electrically and functionally identical. They share the same base product number, manufacturer, package type, and all critical specifications including resolution, sampling rate, interface protocols, and supply voltage range.

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

A: The primary difference is packaging format. PCM1774RGPTG4 is supplied in tube packaging, while PCM1774RGPT is supplied in Tape & Reel (TR) format. The TR format is optimized for automated pick-and-place assembly. Both parts are otherwise identical.

Q: Why is the main part discontinued?

A: PCM1774RGPTG4 is discontinued at DiGi Electronics. The substitute part PCM1774RGPT remains in active production and is the recommended source for new orders.

Q: Are there any compatibility concerns when switching to the substitute part?

A: No. The substitute part maintains identical electrical characteristics, pinout, package dimensions, and functional specifications. PCB layout and circuit design require no modification.

Q: Do both parts meet the same compliance standards?

A: Yes. Both PCM1774RGPTG4 and PCM1774RGPT are ROHS3 compliant with MSL 2 ratings and identical REACH and ECCN classifications.

Q: Which part should be selected for new designs?

A: PCM1774RGPT should be selected for new designs due to active product status and standard Tape & Reel packaging format suitable for production assembly.