TAS5508APAG Equivalent & Substitute Parts

Part Overview

The TAS5508APAG is an 8-channel audio modulator IC manufactured by Texas Instruments, designed for digital audio interfacing applications. It operates across a wide frequency range of 32kHz to 192kHz and is housed in a 64-TQFP surface mount package. The device is currently classified as obsolete, which necessitates identification of active equivalent parts to ensure continued design support and procurement availability for new production runs and legacy system maintenance.

Substiute Parts

TAS5508APAG

Texas InstrumentsIn Stock: 2330TAS5508APAG Datasheet

Current PartRFQ

TAS5508CPAG

Texas InstrumentsIn Stock: 108230TAS5508CPAG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The TAS5508CPAG is identified as a direct substitute for the TAS5508APAG based on the following critical parameters that determine functional and mechanical compatibility:

Substitution Criteria:

• Identical channel count (8 channels)
• Identical interface protocols (I2C, I2S)
• Identical supply voltage range (3V ~ 3.6V)
• Identical operating temperature range (0°C ~ 70°C)
• Identical frequency specification (32kHz ~ 192kHz)
• Identical package and pinout (64-TQFP 10x10)
• Identical mounting type (Surface Mount)
• Identical RoHS and REACH compliance status
• Identical MSL rating (4, 72 Hours)

The primary distinction between these parts is product status: the TAS5508APAG is obsolete, while the TAS5508CPAG is active production. The TAS5508CPAG is supplied in Tray packaging versus the original part's unspecified packaging format.

Parameter Comparison

Engineering Selection Recommendations

The TAS5508CPAG is the appropriate substitute for the obsolete TAS5508APAG. Both parts maintain identical electrical specifications, interface protocols, and package configurations. The substitute part is in active production status, ensuring long-term availability and supply chain continuity.

Both parts satisfy ROHS3 compliance requirements and REACH regulatory status, making them suitable for applications requiring environmental and regulatory adherence. The MSL rating of 4 (72 Hours) applies to both parts and must be observed during storage and handling procedures.

Selection of the TAS5508CPAG eliminates obsolescence risk while maintaining full functional and mechanical compatibility with existing designs utilizing the TAS5508APAG.

Frequently Asked Questions (FAQ)

Q: Can the TAS5508CPAG be used as a direct replacement for the TAS5508APAG in existing designs?

A: Yes. The TAS5508CPAG is a direct substitute. Both parts share identical pinout, package dimensions (64-TQFP 10x10), electrical specifications, and interface protocols. No design modifications are required.

Q: Are there differences in the I2C and I2S interface implementations between these parts?

A: No. Both the TAS5508APAG and TAS5508CPAG implement identical I2C and I2S interface protocols. Signal timing, protocol compliance, and communication specifications are equivalent.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The TAS5508APAG is no longer manufactured by Texas Instruments. The TAS5508CPAG is the active production equivalent. For new designs and ongoing production, the TAS5508CPAG should be specified to ensure supply availability and manufacturer support.

Q: Do both parts require identical PCB layout and thermal management considerations?

A: Yes. Both parts use the same 64-TQFP package with identical pin assignments and thermal characteristics. PCB layout, trace routing, and thermal design considerations remain unchanged between the two parts.

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

A: No. Both parts maintain identical ROHS3 compliance and REACH status. Regulatory and environmental certifications are equivalent.

Q: What is the MSL rating and how does it affect component handling?

A: Both parts carry an MSL rating of 4 with a 72-hour floor life. Components must be stored in controlled humidity environments and used within 72 hours of exposure to ambient conditions exceeding the specified moisture limits.