TAS5504APAGR Audio Modulator Equivalent & Substitute Parts

Part Overview

The TAS5504APAGR is a 4-channel audio modulator IC manufactured by Texas Instruments, housed in a 64-TQFP (10x10) surface mount package. This device is classified as "Not For New Designs," indicating it has reached end-of-life status. The part supports digital audio interfacing through I2C and I2S interfaces with a 3.3V supply voltage requirement.

Due to its discontinued design status, identifying functionally compatible substitute parts is essential for ongoing system support, legacy product maintenance, and design flexibility. The TAS5508CPAGR serves as the manufacturer-recommended alternative, offering enhanced channel capacity and active product status.

Substiute Parts

TAS5504APAGR

Texas InstrumentsIn Stock: 2110TAS5504APAGR Datasheet

Current PartRFQ

TAS5508CPAGR

Texas InstrumentsIn Stock: 19073TAS5508CPAGR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TAS5504APAGR is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 64-TQFP (10x10) surface mount package to ensure PCB footprint compatibility without redesign.

Interface Compatibility: I2C and I2S interface support is mandatory for digital audio signal routing and control protocol alignment.

Supply Voltage Range: The substitute must operate within or encompass the 3.3V supply requirement of the original design.

Regulatory Compliance: RoHS3 compliance and REACH unaffected status ensure environmental and regulatory alignment.

Functional Category: Both parts must serve as audio modulators within the digital audio interfacing application domain.

The TAS5508CPAGR qualifies as a direct substitute based on these parameters. While it offers 8 channels compared to the original 4 channels, it maintains identical package geometry, interface protocols, regulatory compliance, and moisture sensitivity specifications. The expanded supply voltage range (3V ~ 3.6V) encompasses the original 3.3V requirement.

Parameter Comparison

Engineering Selection Recommendations

For Legacy System Maintenance: The TAS5504APAGR remains suitable for existing designs already in production or field deployment. Current inventory of 2000 units supports ongoing supply requirements for established applications.

For New Development or Redesign: The TAS5508CPAGR is the appropriate selection. Its active product status ensures long-term availability and manufacturer support. The identical package footprint and interface specifications enable direct substitution without PCB layout modifications. The expanded channel count (8 vs. 4) provides additional design flexibility for future audio processing requirements.

Compliance Assurance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements across manufacturing and deployment regions.

Thermal and Moisture Considerations: Identical MSL ratings (4, 72 Hours) require equivalent handling and storage protocols. The TAS5508CPAGR's specified operating temperature range (0°C ~ 70°C) provides defined thermal performance boundaries for system design validation.

Frequently Asked Questions (FAQ)

Q: Can the TAS5508CPAGR directly replace the TAS5504APAGR on existing PCBs?

A: Yes. Both parts use the identical 64-TQFP (10x10) package geometry, enabling direct footprint compatibility without PCB redesign. I2C and I2S interface protocols are maintained across both devices.

Q: What is the primary difference between these two parts?

A: The TAS5508CPAGR provides 8 audio channels compared to the TAS5504APAGR's 4 channels. Both maintain the same package, interface standards, and regulatory compliance. The TAS5508CPAGR is actively manufactured, while the TAS5504APAGR is not recommended for new designs.

Q: Are there supply voltage compatibility concerns?

A: The TAS5504APAGR requires 3.3V. The TAS5508CPAGR operates across 3V ~ 3.6V, which encompasses the original requirement. Existing 3.3V supply circuits require no modification.

Q: How do moisture sensitivity levels affect component handling?

A: Both parts carry MSL 4 (72 Hours) ratings, requiring identical moisture control protocols during storage, handling, and assembly. No differential handling procedures are necessary between the two parts.

Q: Is the TAS5508CPAGR suitable for new audio modulator designs?

A: Yes. The active product status, comprehensive operating specifications (32kHz ~ 192kHz), and defined temperature range (0°C ~ 70°C) make it the appropriate choice for new development initiatives requiring audio modulation functionality.