PCM4104IPFBREP Equivalent & Substitute Parts

Part Overview

The PCM4104IPFBREP is a 24-bit audio digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for audio applications requiring 216 kHz sampling rate capability with 4-channel output. The device operates with dual supply voltages (3V–3.6V and 5V) and is housed in a 48-pin TQFP surface-mount package.

This part is classified as obsolete. Identifying equivalent and substitute components is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance of systems utilizing this DAC architecture.

Substiute Parts

PCM4104IPFBREP

Texas InstrumentsIn Stock: 995PCM4104IPFBREP Datasheet

Current PartRFQ

PCM4104PFBT

Texas InstrumentsIn Stock: 20241PCM4104PFBT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCM4104IPFBREP is determined by strict equivalence across the following critical parameters:

• Functional equivalence: Type (DAC, Audio), number of channels (4), resolution (24 bits), and sampling rate (216 kHz)
• Interface compatibility: PCM data interface
• Electrical compatibility: Dual supply voltage support (3V–3.6V and 5V)
• Physical compatibility: 48-TQFP package form factor
• Compliance alignment: RoHS3 compliance and MSL rating

The PCM4104PFBT meets all these criteria and is identified as the manufacturer-recommended substitute. This part maintains functional and electrical equivalence while offering improved product status (Active vs. Obsolete) and enhanced supply availability.

Parameter Comparison

Engineering Selection Recommendations

The PCM4104PFBT is the direct substitute for the PCM4104IPFBREP based on functional and electrical equivalence. Selection of the substitute is supported by the following factors:

• Product lifecycle: The substitute maintains Active status, ensuring long-term availability and manufacturer support, whereas the main part is Obsolete
• Compliance certification: Both parts maintain ROHS3 compliance and identical MSL ratings, confirming environmental and handling equivalence
• Supply continuity: The substitute offers significantly higher inventory availability (20,150 units vs. 922 units), reducing procurement risk
• Functional parity: All critical electrical and functional parameters are identical, enabling direct replacement without circuit redesign

For new designs or production transitions, the PCM4104PFBT is the appropriate selection. For existing systems using the PCM4104IPFBREP, substitution is electrically and mechanically valid.

Frequently Asked Questions (FAQ)

Q: Can the PCM4104PFBT be used as a direct replacement for the PCM4104IPFBREP?

A: Yes. Both parts are functionally and electrically equivalent across all critical parameters: 24-bit resolution, 216 kHz sampling rate, 4-channel PCM audio DAC architecture, dual supply voltage support, and 48-TQFP package form factor. No circuit modifications are required.

Q: What is the difference between the PCM4104IPFBREP and PCM4104PFBT?

A: The primary differences are product status (Obsolete vs. Active) and packaging format (not specified vs. Tape & Reel). The substitute offers improved supply availability and manufacturer support. Electrical and functional specifications are identical.

Q: Are there any operating temperature differences between these parts?

A: Yes. The PCM4104IPFBREP operates across –40°C to +85°C, while the PCM4104PFBT operates across –10°C to +70°C. Applications requiring extended low-temperature operation below –10°C must retain the original part or verify system requirements against the substitute's temperature range.

Q: Is the 48-TQFP package identical between both parts?

A: Yes. Both parts use the 48-TQFP (7×7 mm) package with identical pinout and footprint. PCB layout and assembly processes require no modification.

Q: What is the significance of the Tape & Reel packaging for the substitute?

A: Tape & Reel (TR) packaging is standard for high-volume surface-mount assembly operations. It provides improved handling efficiency and cost-effectiveness for production environments compared to alternative packaging formats.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the PCM4104IPFBREP and PCM4104PFBT are ROHS3 compliant with identical Moisture Sensitivity Level (MSL) ratings of 2 (1 Year), confirming equivalent environmental and handling requirements.