TAS5504PAGG4 Equivalent & Substitute Parts

Part Overview

The TAS5504PAGG4 is a 4-channel audio modulator IC manufactured by Texas Instruments, housed in a 64-TQFP (10x10) surface mount package. This device interfaces via I2C and I2S protocols and supports audio sampling rates from 32kHz to 192kHz, operating within a 3V to 3.6V supply voltage range. The TAS5504PAGG4 is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

TAS5504PAGG4

Texas InstrumentsIn Stock: 718TAS5504PAGG4 Datasheet

Current PartRFQ

TAS5508CPAG

Texas InstrumentsIn Stock: 108230TAS5508CPAG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAS5504PAGG4 is determined by the following critical parameters:

• Package Compatibility: Both main and substitute parts must use the 64-TQFP (10x10) surface mount package to ensure PCB layout compatibility without redesign.
• Interface Protocol: I2C and I2S interface support is mandatory for system integration.
• Supply Voltage Range: 3V to 3.6V operating range must be maintained.
• Operating Temperature: 0°C to 70°C specification must be met.
• Sampling Rate Support: 32kHz to 192kHz audio frequency range must be supported.
• Regulatory Compliance: ROHS3 compliance and MSL 4 rating are required for manufacturing and storage compatibility.

The TAS5508CPAG qualifies as a substitute based on these parameters. While it provides 8 channels instead of 4, all electrical, mechanical, and regulatory specifications align with the TAS5504PAGG4 requirements, making it suitable for applications where additional channel capacity is acceptable or beneficial.

Parameter Comparison

Engineering Selection Recommendations

The TAS5508CPAG is the manufacturer-recommended substitute for the obsolete TAS5504PAGG4. Selection of the TAS5508CPAG is supported by the following factors:

• Product Status: The TAS5508CPAG maintains active product status with Texas Instruments, ensuring continued availability and manufacturing support.
• Regulatory Compliance: Both ROHS3 compliance and MSL 4 rating are identical, eliminating compliance-related redesign requirements.
• Electrical Specifications: Supply voltage, operating temperature range, and sampling rate specifications are fully compatible.
• Package Compatibility: Identical 64-TQFP (10x10) package footprint permits direct PCB substitution without layout modification.
• Interface Compatibility: I2C and I2S protocol support matches the original specification.

The primary design consideration is the increase from 4 to 8 channels. Systems utilizing only 4 channels will operate with unused channel capacity. Systems requiring expansion to 8-channel audio processing benefit from this substitution without additional component changes.

Frequently Asked Questions (FAQ)

Q: Can the TAS5508CPAG be used as a direct replacement for the TAS5504PAGG4 on existing PCBs?

A: Yes. Both devices use the identical 64-TQFP (10x10) package footprint and pin configuration. No PCB layout modifications are required for physical substitution.

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

A: The TAS5504PAGG4 provides 4 audio modulation channels, while the TAS5508CPAG provides 8 channels. All other electrical, mechanical, and regulatory specifications are equivalent.

Q: Are the supply voltage and operating temperature ranges identical?

A: Yes. Both parts operate at 3V to 3.6V supply voltage and 0°C to 70°C operating temperature range.

Q: Do both parts support the same audio sampling rates?

A: Yes. Both the TAS5504PAGG4 and TAS5508CPAG support sampling rates from 32kHz to 192kHz.

Q: Are the I2C and I2S interface protocols identical?

A: Yes. Both parts use I2C and I2S interfaces for digital audio communication.

Q: What is the significance of the product status difference?

A: The TAS5504PAGG4 is obsolete and no longer manufactured by Texas Instruments. The TAS5508CPAG is active, ensuring continued availability, technical support, and manufacturing consistency.

Q: Are the RoHS and MSL ratings the same?

A: Yes. Both parts are ROHS3 compliant with MSL 4 (72 Hours) moisture sensitivity rating, ensuring identical handling and storage requirements.

Q: Can unused channels on the TAS5508CPAG be disabled?

A: Channel configuration is determined by firmware and system design. Consult the TAS5508CPAG datasheet for channel enable/disable functionality specific to your application.