TAS5012IPFB Equivalent & Substitute Parts

Part Overview

The TAS5012IPFB is a 2-channel audio signal processor manufactured by Texas Instruments, housed in a 48-TQFP package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The device operates within a 3V to 3.6V supply range and supports DSP and I2S interfaces for audio signal processing applications.

Substiute Parts

TAS5012IPFB

Texas InstrumentsIn Stock: 1373TAS5012IPFB Datasheet

Current PartRFQ

TAS5558DCA

Texas InstrumentsIn Stock: 1242TAS5558DCA Datasheet

MFR RecommendedRFQ

TAS5086DBT

Texas InstrumentsIn Stock: 1463TAS5086DBT Datasheet

MFR RecommendedRFQ

Z87L1016ASGR2961

ZilogIn Stock: 1065Z87L1016ASGR2961 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TAS5012IPFB is determined by the following critical parameters:

Primary Compatibility Criteria:

• Voltage supply range: 3V ~ 3.6V (all substitutes must operate within this range)
• Interface support: I2S capability (mandatory for audio data communication)
• Mounting type: Surface Mount (PCB integration compatibility)
• RoHS3 compliance (regulatory requirement)
• REACH unaffected status (regulatory requirement)

Functional Considerations:

• Audio processing capability (signal processor or modulator function)
• Channel configuration (2-channel minimum for direct replacement)
• Operating temperature range compatibility

The substitute parts identified—TAS5086DBT, TAS5558DCA, and Z87L1016ASGR2961—meet the core electrical and interface requirements. However, they differ in channel count, package configuration, and functional specialization (modulator vs. signal processor), requiring engineering evaluation for specific application contexts.

Parameter Comparison

Engineering Selection Recommendations

TAS5086DBT is the primary substitute for applications requiring direct functional replacement. This Texas Instruments modulator operates within the identical voltage and temperature range as the TAS5012IPFB, maintains ROHS3 compliance, and supports I2S interface communication. The 6-channel configuration provides expanded processing capability while maintaining the same MSL rating. The 38-TSSOP package requires PCB layout modification compared to the original 48-TQFP footprint.

TAS5558DCA is suitable for applications requiring higher channel density (8 channels) and extended operating temperature range (0°C ~ 85°C). This part maintains voltage compatibility and I2S interface support. The extended temperature range and higher MSL rating (3) indicate different environmental handling requirements during assembly and storage.

Z87L1016ASGR2961 from Zilog provides an alternative audio processor with 2-channel configuration matching the original part's channel count. This substitute offers extended operating temperature range (-25°C ~ 70°C) and maintains voltage and compliance requirements. The Serial interface differs from the DSP/I2S configuration of the main part, requiring firmware and interface protocol adaptation.

All substitutes are currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete TAS5012IPFB.

Frequently Asked Questions (FAQ)

Q: Can TAS5086DBT directly replace TAS5012IPFB without PCB modification?

A: No. While both parts meet core electrical requirements (3V ~ 3.6V supply, I2S interface, ROHS3 compliance), the package types differ (38-TSSOP vs. 48-TQFP). PCB layout and footprint redesign is required. Additionally, the 6-channel configuration of TAS5086DBT differs from the 2-channel TAS5012IPFB, requiring firmware adaptation.

Q: What is the significance of MSL rating differences between substitutes?

A: MSL (Moisture Sensitivity Level) rating indicates moisture handling requirements during storage and assembly. TAS5012IPFB and TAS5086DBT both carry MSL 2 (1 Year), allowing standard moisture control procedures. TAS5558DCA and Z87L1016ASGR2961 carry MSL 3 (168 Hours), requiring more stringent moisture control and shorter shelf life after packaging opening.

Q: Is the Z87L1016ASGR2961 compatible with existing I2S interface designs?

A: No. The Z87L1016ASGR2961 uses Serial interface, while TAS5012IPFB uses DSP and I2S interfaces. Substitution requires interface protocol redesign and firmware modification. This part is suitable only for applications where Serial interface communication is acceptable.

Q: Which substitute offers the best thermal performance?

A: TAS5558DCA supports the widest operating temperature range (0°C ~ 85°C) compared to TAS5012IPFB (0°C ~ 70°C). For applications requiring extended high-temperature operation, TAS5558DCA is the appropriate selection. Z87L1016ASGR2961 extends the lower temperature limit to -25°C for cold environment applications.

Q: Are all substitutes available in the same packaging format?

A: No. Each substitute uses a different package type: TAS5086DBT (38-TSSOP), TAS5558DCA (56-HTSSOP), and Z87L1016ASGR2961 (44-LQFP). Package selection impacts PCB design, thermal management, and assembly process compatibility.