TAS5508BPAG Audio Modulator Equivalent & Substitute Parts

Part Overview

The TAS5508BPAG is an 8-channel audio modulator IC manufactured by Texas Instruments, housed in a 64-TQFP (10x10) surface mount package. This component is designed for digital audio interfacing applications, supporting I2C and I2S interfaces with a supply voltage range of 3V to 3.6V and operating temperature range of 0°C to 70°C.

The TAS5508BPAG carries a product status of "Not For New Designs," indicating it has been superseded in Texas Instruments' product portfolio. Identifying equivalent substitute parts is necessary for ongoing maintenance, repair, and legacy system support where this component remains in use.

Substiute Parts

TAS5508BPAG

Texas InstrumentsIn Stock: 1437TAS5508BPAG Datasheet

Current PartRFQ

TAS5508CPAG

Texas InstrumentsIn Stock: 108230TAS5508CPAG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAS5508BPAG is determined by the following critical parameters that must remain constant:

• Function: 8-channel audio modulator
• Interface Protocol: I2C and I2S support
• Supply Voltage Range: 3V to 3.6V
• Operating Temperature Range: 0°C to 70°C
• Audio Frequency Specification: 32kHz to 192kHz
• Package Type: 64-TQFP (10x10) surface mount
• Pin Configuration: Identical pinout required for direct PCB compatibility

The TAS5508CPAG meets all these criteria and serves as a direct functional equivalent. Both parts share the same base product number (TAS5508), identical electrical specifications, and compatible packaging, enabling direct substitution in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The TAS5508CPAG is the recommended substitute for the TAS5508BPAG. Both components are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product lifecycle status: the TAS5508BPAG is designated "Not For New Designs," while the TAS5508CPAG maintains "Active" status.

For applications requiring the TAS5508BPAG, the TAS5508CPAG provides full functional equivalence with the added benefit of ongoing manufacturer support and availability. Both parts comply with ROHS3 and REACH requirements, ensuring regulatory alignment. The identical 64-TQFP package and pinout enable direct PCB-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can the TAS5508CPAG be used as a direct replacement for the TAS5508BPAG?

A: Yes. Both parts share identical electrical specifications, interface protocols, supply voltage requirements, operating temperature range, audio frequency support, and 64-TQFP package configuration. Direct substitution is possible without circuit design changes.

Q: What is the significance of the "Not For New Designs" status on the TAS5508BPAG?

A: This designation indicates that Texas Instruments has transitioned this component to end-of-life status and recommends using the TAS5508CPAG for new applications. Existing systems using the TAS5508BPAG can continue operation, and the TAS5508CPAG serves as the active replacement.

Q: Are there any differences in compliance or certifications between these parts?

A: Both the TAS5508BPAG and TAS5508CPAG are ROHS3 compliant and REACH unaffected. Moisture sensitivity levels are identical at MSL 4 (72 Hours), ensuring equivalent handling and storage requirements.

Q: Is the pinout identical between the TAS5508BPAG and TAS5508CPAG?

A: Yes. Both components use the 64-TQFP (10x10) package with identical pin assignments, enabling direct PCB-level substitution.

Q: What audio frequency range do these modulators support?

A: Both the TAS5508BPAG and TAS5508CPAG support audio frequencies from 32kHz to 192kHz, covering standard and high-resolution audio applications.