PCM1730E/2K Audio DAC Equivalent & Substitute Parts

Part Overview

The PCM1730E/2K is a 24-bit audio digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for high-resolution audio applications with I2S digital interface support. This component operates at a 200 kHz sampling rate and supports dual-channel audio output with flexible supply voltage options (3V–3.6V and 5V). The PCM1730E/2K is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

PCM1730E/2K

Texas InstrumentsIn Stock: 1248PCM1730E/2K Datasheet

Current PartRFQ

PCM1730E

Texas InstrumentsIn Stock: 985PCM1730E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCM1730E/2K is determined by strict equivalence across the following critical parameters:

• Resolution and Sampling Rate: 24-bit resolution at 200 kHz sampling rate
• Channel Configuration: Dual-channel (2-channel) audio output
• Digital Interface: I2S protocol compatibility
• Supply Voltage Compatibility: Support for both 3V–3.6V and 5V supply rails
• Package and Pinout: 28-SSOP surface-mount package with identical mechanical and electrical pinout
• Operating Temperature Range: −25°C to +85°C
• Compliance Standards: ROHS3 compliance and REACH unaffected status

The PCM1730E represents the direct substitute for the PCM1730E/2K. Both parts share identical electrical specifications, functional performance, and package configuration. The primary distinction is product status: PCM1730E/2K is obsolete, while PCM1730E maintains active production status.

Parameter Comparison

Engineering Selection Recommendations

The PCM1730E is the appropriate substitute for the obsolete PCM1730E/2K in all applications requiring 24-bit audio DAC functionality with I2S interface support. Selection of PCM1730E is justified on the following basis:

• Product Status: PCM1730E maintains active production status with confirmed inventory availability (928 units), ensuring long-term supply chain reliability compared to the obsolete PCM1730E/2K.
• Electrical Equivalence: All electrical parameters, including resolution, sampling rate, supply voltage ranges, and operating temperature specifications, are identical between the two parts.
• Mechanical Compatibility: Both parts utilize the 28-SSOP package with identical pinout and mechanical dimensions, enabling direct board-level substitution without PCB redesign.
• Compliance Alignment: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and system updates.
• Packaging Availability: PCM1730E is supplied in tube packaging, supporting standard manufacturing and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can PCM1730E be used as a direct replacement for PCM1730E/2K without circuit modifications?

A: Yes. PCM1730E is electrically and mechanically equivalent to PCM1730E/2K. Both parts share identical pinout, package configuration, and electrical specifications. Direct substitution on existing PCBs is supported without circuit redesign.

Q: What is the primary reason for substituting PCM1730E/2K with PCM1730E?

A: PCM1730E/2K is classified as obsolete, limiting future availability and procurement options. PCM1730E maintains active production status, ensuring reliable supply chain access and long-term component availability.

Q: Are there any differences in supply voltage requirements between PCM1730E/2K and PCM1730E?

A: No. Both parts support identical supply voltage ranges: 3V–3.6V and 5V. System designs utilizing either voltage configuration can transition to PCM1730E without modification.

Q: Do both parts support the same operating temperature range?

A: Yes. Both PCM1730E/2K and PCM1730E operate across the temperature range of −25°C to +85°C, maintaining functional equivalence across all specified environmental conditions.

Q: Is the 28-SSOP package identical between both parts?

A: Yes. Both parts utilize the 28-SSOP package with 0.209" width and 5.30mm physical dimensions. Pinout and mechanical specifications are identical, supporting direct board-level substitution.

Q: What compliance certifications apply to PCM1730E?

A: PCM1730E maintains ROHS3 compliance and REACH unaffected status, identical to PCM1730E/2K. Both parts satisfy current regulatory requirements for electronic component manufacturing and distribution.