PCM4104PFBTG4 Equivalent & Substitute Parts

Part Overview

The PCM4104PFBTG4 is a 24-bit audio digital-to-analog converter (DAC) with 4 channels, designed for high-fidelity audio applications requiring 216 kHz sampling rate capability. 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 discontinued at DiGi Electronics, making identification of equivalent substitute components essential for ongoing production, maintenance, and design continuity. The PCM4104PFBTG4 differs from its substitute primarily in packaging configuration, with the substitute available in standard Tape & Reel format and active product status.

Substiute Parts

PCM4104PFBTG4

Texas InstrumentsIn Stock: 846PCM4104PFBTG4 Datasheet

Current PartRFQ

PCM4104PFBT

Texas InstrumentsIn Stock: 20241PCM4104PFBT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The PCM4104PFBT qualifies as a direct substitute for the PCM4104PFBTG4 based on the following substitution criteria:

Identical Electrical Parameters:

• 4-channel audio DAC architecture
• 24-bit resolution
• 216 kHz maximum sampling rate
• PCM digital interface
• Dual supply voltage operation (3V–3.6V and 5V)
• Operating temperature range (−10°C to +70°C)

Identical Mechanical Parameters:

• 48-pin TQFP package (7×7 mm footprint)
• Surface-mount technology
• Pin-compatible layout

Compliance Equivalence:

• ROHS3 compliant
• MSL 2 rating (1 Year)
• REACH unaffected status
• EAR99 export classification

The substitution is valid across all functional and physical dimensions. The primary difference is packaging format (Tape & Reel for the substitute versus the original packaging) and product lifecycle status (Active versus Discontinued).

Parameter Comparison

Engineering Selection Recommendations

The PCM4104PFBT is the appropriate substitute for the discontinued PCM4104PFBTG4. Both devices share identical electrical specifications, pin configurations, and compliance certifications. The substitute maintains ROHS3 compliance and MSL 2 moisture sensitivity rating, ensuring compatibility with existing assembly and storage protocols.

The PCM4104PFBT is currently in active production status with substantial inventory availability (20,150 units), providing supply continuity for new designs and production runs. The Tape & Reel packaging format is standard for high-volume manufacturing and automated assembly processes.

No design modifications, PCB layout changes, or firmware adjustments are required when transitioning from the PCM4104PFBTG4 to the PCM4104PFBT. The devices are functionally and mechanically interchangeable.

Frequently Asked Questions (FAQ)

Q: Are the PCM4104PFBTG4 and PCM4104PFBT pin-compatible?

A: Yes. Both devices use the 48-pin TQFP (7×7 mm) package with identical pin assignments. No PCB redesign is necessary.

Q: What is the difference between the original part and the substitute?

A: The primary differences are product lifecycle status (Discontinued versus Active) and packaging format (standard packaging versus Tape & Reel). All electrical, mechanical, and compliance specifications are identical.

Q: Can the PCM4104PFBT be used in existing designs specified for the PCM4104PFBTG4?

A: Yes. The substitute is a direct replacement with no design modifications required. Electrical performance, supply voltage requirements, operating temperature range, and package footprint are identical.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Tape & Reel is a standard packaging and handling format for surface-mount components. It does not affect electrical performance or reliability. The device itself is identical to the original.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the PCM4104PFBTG4 and PCM4104PFBT are ROHS3 compliant with MSL 2 (1 Year) moisture sensitivity rating.

Q: What is the inventory status of the substitute?

A: The PCM4104PFBT is in active production with 20,150 units currently in stock, ensuring reliable supply availability.