PCM1681PWPRG4 Equivalent & Substitute Parts

Part Overview

The PCM1681PWPRG4 is a 24-bit audio digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for high-resolution audio applications with sampling rates up to 192 kHz. This component integrates 8 channels of audio conversion with DSP and I2S digital interfaces, supporting dual voltage supplies (3V–3.6V and 5V). The PCM1681PWPRG4 is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements.

Substiute Parts

PCM1681PWPRG4

Texas InstrumentsIn Stock: 920PCM1681PWPRG4 Datasheet

Current PartRFQ

PCM1681PWPR

Texas InstrumentsIn Stock: 25275PCM1681PWPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCM1681PWPRG4 is determined by strict equivalence across the following critical parameters:

• Channel Configuration: 8 channels
• Resolution: 24-bit
• Sampling Rate: 192 kHz
• Digital Interface: DSP and I2S support
• Voltage Supply: Dual supply (3V–3.6V and 5V)
• Operating Temperature Range: -40°C to 85°C
• Package Type: 28-PowerTSSOP
• Compliance: ROHS3 Compliant, REACH Unaffected

The PCM1681PWPR is identified as a direct substitute based on identical electrical specifications, package configuration, and compliance certifications. The primary distinction is product status: PCM1681PWPR is active and available in higher inventory quantities.

Parameter Comparison

Engineering Selection Recommendations

The PCM1681PWPR is the recommended substitute for the discontinued PCM1681PWPRG4. Both components are manufactured by Texas Instruments and share identical electrical specifications, package configuration, and compliance certifications (ROHS3 Compliant, REACH Unaffected). The PCM1681PWPR maintains active product status with significantly higher inventory availability (25,200 units versus 870 units), ensuring supply chain continuity for production and design applications requiring 24-bit, 192 kHz audio DAC functionality in the 28-PowerTSSOP package.

Frequently Asked Questions (FAQ)

Q: Can PCM1681PWPR be used as a direct replacement for PCM1681PWPRG4?

A: Yes. Both components are electrically and mechanically identical across all specified parameters, including channel count (8), resolution (24-bit), sampling rate (192 kHz), digital interfaces (DSP, I2S), supply voltages (3V–3.6V and 5V), operating temperature range (-40°C to 85°C), and package type (28-PowerTSSOP). Pin-for-pin compatibility is confirmed.

Q: What is the difference between PCM1681PWPRG4 and PCM1681PWPR?

A: The primary difference is product status. PCM1681PWPRG4 is discontinued at DiGi Electronics, while PCM1681PWPR is active. Both components share identical electrical and mechanical specifications. The packaging designation differs slightly (G4 suffix versus standard), but this does not affect functional compatibility.

Q: Are there any compliance or certification differences?

A: No. Both components maintain identical compliance status: ROHS3 Compliant, REACH Unaffected, with MSL rating of 3 (168 Hours). ECCN and HTSUS classifications are identical.

Q: What is the 28-PowerTSSOP package specification?

A: The 28-PowerTSSOP is a surface-mount package with a width of 0.173 inches (4.40 mm). This package type is identical for both the main part and substitute, ensuring PCB layout and thermal management compatibility.

Q: Is inventory availability a factor in substitution?

A: Inventory availability does not affect functional substitution criteria. However, PCM1681PWPR offers significantly higher stock levels (25,200 units), providing improved supply chain reliability compared to the discontinued PCM1681PWPRG4 (870 units remaining).