PCM1850APJTR Equivalent & Substitute Parts

Part Overview

The PCM1850APJTR is a 24-bit stereo audio analog-to-digital converter manufactured by Texas Instruments, designed for audio data acquisition applications. This device features a 96 kHz sampling rate and SPI digital interface, operating across dual voltage supply ranges (2.7V–3.6V and 4.5V–5.5V). The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

PCM1850APJTR

Texas InstrumentsIn Stock: 2075PCM1850APJTR Datasheet

Current PartRFQ

PCM1807PWR

Burr BrownIn Stock: 15681PCM1807PWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PCM1850APJTR is determined by the following critical parameters:

• Channel Configuration: 2-channel stereo audio input
• Resolution: 24-bit digital output
• Sampling Rate: 96 kHz maximum
• Digital Interface: SPI protocol compatibility
• Voltage Supply Ranges: Dual supply operation (2.7V–3.6V and 4.5V–5.5V)
• Package Form Factor: 32-TQFP surface mount package
• Operating Temperature Range: −40°C to +85°C

The PCM1807PWR qualifies as a substitute based on matching audio ADC functionality, 24-bit resolution, stereo channel configuration, and compatible operating specifications. Packaging differences (bulk versus tape & reel) do not affect electrical or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The PCM1807PWR serves as the primary substitute for the obsolete PCM1850APJTR. Both devices share identical core specifications: 24-bit stereo audio ADC functionality, 96 kHz sampling capability, SPI interface, and 32-TQFP surface mount packaging. The PCM1807PWR maintains active product status, ensuring ongoing availability and manufacturer support.

The PCM1850APJTR carries ROHS3 compliance certification. When selecting the PCM1807PWR as a replacement, verify that system-level compliance requirements are satisfied through the complete bill of materials assessment.

Frequently Asked Questions (FAQ)

Q: Can the PCM1807PWR directly replace the PCM1850APJTR in existing designs?

A: Yes. Both devices feature identical channel count (2), resolution (24 bits), sampling rate (96 kHz), digital interface (SPI), and package form factor (32-TQFP). Pin-level compatibility and functional equivalence support direct substitution in PCB layouts and firmware implementations.

Q: Are there voltage supply differences between these devices?

A: The PCM1850APJTR operates across 2.7V–3.6V and 4.5V–5.5V supply ranges. Specific voltage supply specifications for the PCM1807PWR were not provided in the available data. Confirm voltage compatibility with the PCM1807PWR datasheet prior to implementation.

Q: Does packaging format affect substitution?

A: The PCM1850APJTR is supplied in tape & reel format, while the PCM1807PWR is supplied in bulk packaging. Both use identical 32-TQFP (7×7 mm) surface mount packages. Packaging format does not affect electrical performance or PCB assembly compatibility.

Q: What is the significance of the PCM1850APJTR obsolete status?

A: Obsolete classification indicates the manufacturer has discontinued production. The PCM1807PWR, with active product status, provides a supported alternative for new designs and ongoing component procurement.