TAS3004PFB Equivalent & Substitute Parts

Part Overview

The TAS3004PFB is a 2-channel audio signal processor manufactured by Texas Instruments, designed for digital audio interfacing applications. This component features a 48-TQFP package and operates across a 3V to 3.6V supply voltage range with an operating temperature range of 0°C to 70°C. The TAS3004PFB is classified as obsolete, making identification of suitable substitute components essential for ongoing system design and maintenance.

Substiute Parts

TAS3004PFB

Texas InstrumentsIn Stock: 1639TAS3004PFB Datasheet

Current PartRFQ

PCM3070IRHBT

Texas InstrumentsIn Stock: 1611PCM3070IRHBT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAS3004PFB is determined by the following critical parameters:

• Audio Processing Capability: The component must support stereo audio signal processing with a minimum of 2 channels
• Interface Protocol: I2C compatibility is required for control and configuration
• Supply Voltage Compatibility: Operating voltage range must overlap or encompass the 3V to 3.6V requirement
• Resolution: Minimum 24-bit resolution for audio data processing
• Regulatory Compliance: RoHS3 compliance and REACH unaffected status must be maintained
• Package Compatibility: Surface mount technology with appropriate pin count and footprint considerations

The PCM3070IRHBT qualifies as a substitute based on these parameters. While it offers enhanced specifications including 32-bit resolution, dual ADC/DAC architecture, and extended operating temperature range, it maintains core compatibility through I2C interface support, overlapping supply voltage range (1.8V ~ 3.6V digital), and equivalent regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The PCM3070IRHBT is an active product from Texas Instruments and represents a viable substitute for the obsolete TAS3004PFB. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The PCM3070IRHBT provides enhanced specifications including 32-bit resolution, extended operating temperature range (-40°C to 85°C), and additional interface options (Serial and SPI™ in addition to I2C). The digital supply voltage range of 1.1V to 3.6V encompasses the TAS3004PFB requirement of 3V to 3.6V. However, the package transition from 48-TQFP to 32-VFQFN requires PCB layout redesign and footprint modification.

Frequently Asked Questions (FAQ)

Q: Can the PCM3070IRHBT directly replace the TAS3004PFB without PCB modifications?

A: No. The PCM3070IRHBT uses a 32-VFQFN (5x5) package compared to the TAS3004PFB's 48-TQFP (7x7) package. PCB layout redesign and footprint modification are required. Pin mapping and signal routing must be verified against both datasheets.

Q: What are the key compatibility factors for substitution?

A: The substitute must support 2-channel stereo audio processing, I2C interface protocol, digital supply voltage compatible with 3V to 3.6V, minimum 24-bit resolution, and maintain ROHS3 and REACH compliance status.

Q: Does the PCM3070IRHBT support the same I2C interface as the TAS3004PFB?

A: Yes. The PCM3070IRHBT supports I2C as one of its three interface options (I2C, Serial, SPI™), ensuring control protocol compatibility.

Q: What is the impact of the extended operating temperature range on system design?

A: The PCM3070IRHBT's operating range of -40°C to 85°C exceeds the TAS3004PFB's 0°C to 70°C range. This provides greater flexibility for applications requiring extended temperature operation, though it does not restrict use in the original temperature range.

Q: Are there supply voltage considerations when substituting?

A: The PCM3070IRHBT's digital supply voltage range (1.1V ~ 3.6V) is broader than the TAS3004PFB (3V ~ 3.6V). Systems designed for 3V to 3.6V operation remain compatible. The analog supply voltage range is 1.8V to 3.6V, which also encompasses the original specification.