PCM1727E Audio DAC Equivalent & Substitute Parts

Part Overview

The PCM1727E is a 24-bit audio digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for high-fidelity audio applications with 96 kHz sampling rate capability. This component operates as a 3-channel DAC with I2S digital interface and dual analog/digital power supply architecture. The PCM1727E is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

PCM1727E

Texas InstrumentsIn Stock: 2443PCM1727E Datasheet

Current PartRFQ

PCM1723E

Burr BrownIn Stock: 1961PCM1723E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the PCM1727E are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Number of Channels: 3
• Resolution: 24 bits
• Sampling Rate: 96 kHz
• Data Interface: I2S
• Voltage Supply: 5V (Analog and Digital)
• Operating Temperature Range: -25°C to 85°C
• Package Type: 24-SSOP (0.209", 5.30mm Width)
• Mounting Type: Surface Mount

The PCM1723E meets all specified electrical and mechanical parameters, establishing it as a direct substitute for the obsolete PCM1727E.

Parameter Comparison

Engineering Selection Recommendations

The PCM1723E is the qualified substitute for the PCM1727E based on complete parameter alignment across all electrical and mechanical specifications. The PCM1723E maintains active product status with Burr Brown as manufacturer, providing supply continuity for applications currently using the obsolete PCM1727E.

Both components share identical functional specifications: 24-bit resolution, 96 kHz sampling rate, 3-channel configuration, I2S interface, 5V dual supply architecture, and 24-SSOP surface mount packaging. The operating temperature range and physical footprint are equivalent, ensuring direct compatibility in existing PCB layouts and thermal management designs.

The transition from PCM1727E to PCM1723E requires no circuit modifications, as pin configuration, signal levels, and supply requirements are matched. Both components comply with ROHS3 standards and operate within the same environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can the PCM1723E directly replace the PCM1727E without PCB modifications?

A: Yes. The PCM1723E is electrically and mechanically equivalent to the PCM1727E. Both components use identical 24-SSOP packaging, pin configuration, and electrical specifications. No PCB layout changes are required.

Q: What is the primary reason for substitution?

A: The PCM1727E is classified as obsolete. The PCM1723E is an active product offering equivalent functionality and specifications, ensuring long-term supply availability.

Q: Are there differences in audio performance between these components?

A: Both components meet identical specifications for resolution (24-bit), sampling rate (96 kHz), and channel count (3). Performance characteristics are equivalent within the specified operating parameters.

Q: Do both components require the same power supply configuration?

A: Yes. Both the PCM1727E and PCM1723E require 5V dual supply (analog and digital), with identical voltage supply architecture and operating current specifications.

Q: Is the 24-SSOP package identical for both parts?

A: Yes. Both components use the 24-SSOP package with 0.209" width (5.30mm). Package dimensions, pin pitch, and thermal characteristics are identical.

Q: What is the operating temperature range for both components?

A: Both the PCM1727E and PCM1723E operate across -25°C to 85°C, supporting identical thermal specifications for industrial and consumer audio applications.

Q: Are there any compliance or certification differences?

A: The PCM1727E is ROHS3 compliant with MSL 1 rating. The PCM1723E maintains equivalent compliance standards, ensuring regulatory compatibility in replacement scenarios.