PCM1733U/2K Equivalent & Substitute Parts

Part Overview

The PCM1733U/2K is an 18-bit audio digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for audio applications requiring 96 kHz sampling rates with I2S digital interface. The device operates from a single 5V supply and is housed in a 14-SOIC surface mount package. The PCM1733U/2K carries an obsolete product status, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning.

Substiute Parts

PCM1733U/2K

Texas InstrumentsIn Stock: 736PCM1733U/2K Datasheet

Current PartRFQ

PCM1733U

Texas InstrumentsIn Stock: 4682PCM1733U Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PCM1733U/2K is determined by strict equivalence across the following critical parameters:

• Resolution: 18 bits
• Number of Channels: 3
• Sampling Rate: 96 kHz
• Data Interface: I2S
• Voltage Supply: 5V Single Supply
• Package Type: 14-SOIC
• Operating Temperature Range: -25°C to 85°C

The PCM1733U qualifies as a direct substitute based on identical electrical specifications, pin configuration, and package footprint. The primary distinction between the main part and substitute is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The PCM1733U is the appropriate substitute for the obsolete PCM1733U/2K. Both parts maintain identical electrical and mechanical specifications, ensuring direct functional compatibility. The PCM1733U carries active product status with higher inventory availability (4581 units in stock versus 694 units for the PCM1733U/2K), supporting long-term procurement reliability. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, confirming environmental and regulatory equivalence. The PCM1733U is supplied in tube packaging, which is standard for active production components.

Frequently Asked Questions (FAQ)

Q: Can the PCM1733U directly replace the PCM1733U/2K in existing designs?

A: Yes. The PCM1733U provides identical electrical performance, pin configuration, and package footprint. No circuit modifications are required for substitution.

Q: What is the significance of the product status difference?

A: The PCM1733U/2K is classified as obsolete, indicating Texas Instruments has discontinued active production and support. The PCM1733U maintains active status with ongoing availability and manufacturing support.

Q: Are there any compliance or environmental differences between these parts?

A: No. Both parts are ROHS3 compliant with identical moisture sensitivity levels (MSL 1, Unlimited), confirming equivalent environmental and regulatory standing.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (tube versus unspecified) does not affect component functionality or electrical characteristics. The difference reflects production and distribution methods only.

Q: What parameters must remain identical for substitution to be valid?

A: Resolution (18 bits), channel count (3), sampling rate (96 kHz), data interface (I2S), supply voltage (5V), package type (14-SOIC), and operating temperature range (-25°C to 85°C) must all match exactly.