PCM2707CPJT Equivalent & Substitute Parts

Part Overview

The PCM2707CPJT is a 16-bit stereo audio codec with integrated USB and SPI interfaces, designed for audio data acquisition applications. Manufactured by Texas Instruments, this component operates at a 48 kHz sampling rate and supports dual supply voltages (3V–3.6V and 5V). The device is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

PCM2707CPJT

Texas InstrumentsIn Stock: 1105PCM2707CPJT Datasheet

Current PartRFQ

PCM2705CDB

Burr BrownIn Stock: 3348PCM2705CDB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PCM2707CPJT is determined by the following critical parameters:

• Audio Codec Functionality: 16-bit stereo audio processing capability
• Sampling Rate: 48 kHz operation
• Data Interface Compatibility: SPI and USB support
• Supply Voltage Range: Dual supply operation (3V–3.6V and 5V)
• Channel Configuration: 2-channel stereo
• Surface Mount Packaging: Compatible with PCB assembly processes

The PCM2705CDB, manufactured by Burr Brown, meets these core functional requirements. Both devices provide identical audio resolution, sampling rate, channel count, and interface protocols. The primary differences are package form factor and operating temperature range, which do not preclude functional substitution in applications where the PCM2705CDB's specifications are acceptable.

Parameter Comparison

Engineering Selection Recommendations

The PCM2705CDB is a functional equivalent for the obsolete PCM2707CPJT in applications requiring 16-bit stereo audio codec functionality with USB and SPI interfaces at 48 kHz sampling rate.

Selection Considerations:

• Product Status: The PCM2705CDB maintains active production status, ensuring long-term availability and supply chain stability compared to the obsolete PCM2707CPJT.
• Operating Temperature: The PCM2705CDB operates within −25°C to +85°C. Applications requiring the extended lower temperature range (−40°C) of the original part require thermal analysis to confirm compatibility.
• Package Transition: The PCM2705CDB uses a 28-SSOP package versus the 32-TQFP of the original part. PCB layout redesign is required; pin-to-pin compatibility is not guaranteed.
• Compliance: Both devices support RoHS requirements. The PCM2705CDB's full compliance status should be verified with the manufacturer for specific regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the PCM2705CDB directly replace the PCM2707CPJT without PCB modification?

A: No. The PCM2705CDB uses a 28-SSOP package while the PCM2707CPJT uses a 32-TQFP package. Pin assignments differ, requiring PCB layout redesign and re-evaluation of signal routing.

Q: Are the audio specifications identical between these parts?

A: Yes. Both devices provide 16-bit stereo audio processing at 48 kHz sampling rate with SPI and USB interface support. Audio performance characteristics are equivalent for this functional class.

Q: What is the impact of the different operating temperature ranges?

A: The PCM2705CDB operates from −25°C to +85°C, compared to the PCM2707CPJT's −40°C to +125°C range. Applications requiring operation below −25°C or above +85°C must verify thermal performance through testing or thermal modeling.

Q: Is the PCM2705CDB suitable for new designs?

A: Yes. The PCM2705CDB maintains active production status and meets current RoHS compliance requirements, making it appropriate for new product development requiring 16-bit stereo audio codec functionality.

Q: Are there pin-count differences between these devices?

A: Yes. The PCM2707CPJT is a 32-pin device (32-TQFP), while the PCM2705CDB is a 28-pin device (28-SSOP). Pin mapping must be verified during design transition.