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TAS5518PAGR Audio Modulator Equivalent & Substitute Parts
Part Overview
The TAS5518PAGR is an 8-channel audio modulator IC in 64-TQFP surface mount packaging designed for digital audio interfacing applications. This device operates across a supply voltage range of 3V to 3.6V and supports audio sampling rates from 32kHz to 192kHz with I2C and I2S interface protocols.
The TAS5518PAGR carries a "Not For New Designs" product status designation. This status necessitates identification of equivalent substitute components for ongoing production requirements, maintenance applications, and new design implementations where compatible alternatives are required.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Function | Modulator |
| Number of Channels | 8 |
| Interface | I2C, I2S |
| Voltage - Supply | 3V ~ 3.6V |
| Operating Temperature Range | -20°C ~ 70°C (TA) |
| Audio Specifications | 32kHz ~ 192kHz |
| Package / Case | 64-TQFP (10x10) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) |
Substitute Part Grouping Explanation
Substitution eligibility for the TAS5518PAGR is determined by the following critical parameters:
- Functional Equivalence: Device must perform audio modulation with 8-channel capability
- Interface Compatibility: I2C and I2S protocol support required
- Electrical Compatibility: Supply voltage range 3V to 3.6V
- Package Compatibility: 64-TQFP (10x10) surface mount form factor
- Audio Specifications: Support for 32kHz to 192kHz sampling rates
- Environmental Compliance: ROHS3 compliance and MSL 4 rating
The TAS5508CPAGR meets all substitution criteria as a direct equivalent. This part maintains identical channel count, interface protocols, package geometry, and audio frequency specifications while offering active product status and expanded temperature operating range.
Parameter Comparison
| Parameter | TAS5518PAGR (Main Part) | TAS5508CPAGR (Substitute) |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Function | Modulator | Modulator |
| Number of Channels | 8 | 8 |
| Interface | I2C, I2S | I2C, I2S |
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V |
| Operating Temperature Range | -20°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Audio Specifications | 32kHz ~ 192kHz | 32kHz ~ 192kHz |
| Package / Case | 64-TQFP (10x10) | 64-TQFP (10x10) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) | 4 (72 Hours) |
| Product Status | Not For New Designs | Active |
Engineering Selection Recommendations
The TAS5508CPAGR is the qualified substitute for the TAS5518PAGR based on the following engineering criteria:
Functional Compatibility: Both devices provide identical 8-channel audio modulation with I2C and I2S interface support, ensuring seamless integration into existing circuit designs without modification.
Electrical Equivalence: Supply voltage specifications (3V to 3.6V) and audio frequency range (32kHz to 192kHz) are identical across both parts, confirming direct electrical substitution capability.
Package Compatibility: Both components utilize the 64-TQFP (10x10) surface mount package, permitting direct PCB layout reuse without redesign.
Compliance Status: Both parts maintain ROHS3 compliance and identical MSL 4 ratings, satisfying regulatory and manufacturing process requirements.
Product Status Advantage: The TAS5508CPAGR carries active product status, providing long-term availability and supply chain stability compared to the "Not For New Designs" designation of the TAS5518PAGR.
Temperature Operating Range: The TAS5508CPAGR operates from 0°C to 70°C, which covers the upper portion of the TAS5518PAGR range (-20°C to 70°C). Applications requiring operation below 0°C must retain the TAS5518PAGR.
Frequently Asked Questions (FAQ)
Q: Can the TAS5508CPAGR replace the TAS5518PAGR in all applications?
A: The TAS5508CPAGR is functionally and electrically equivalent for applications operating within the 0°C to 70°C temperature range. Applications requiring operation below 0°C must use the TAS5518PAGR due to its extended lower temperature limit of -20°C.
Q: Are PCB layout modifications required when substituting to TAS5508CPAGR?
A: No. Both parts use identical 64-TQFP (10x10) surface mount packaging, permitting direct component substitution without PCB redesign or layout changes.
Q: What is the significance of the "Not For New Designs" status on the TAS5518PAGR?
A: This designation indicates the manufacturer is not recommending this part for new product development. The TAS5508CPAGR, with active product status, is the recommended choice for new designs requiring 8-channel audio modulation functionality.
Q: Are there differences in interface protocol support between these parts?
A: No. Both the TAS5518PAGR and TAS5508CPAGR support identical I2C and I2S interface protocols, ensuring firmware and software compatibility.
Q: Do moisture sensitivity and RoHS compliance differ between these parts?
A: No. Both parts carry MSL 4 (72 Hours) ratings and ROHS3 compliance, maintaining identical handling and environmental requirements.
Q: What audio sampling rates are supported by the TAS5508CPAGR?
A: The TAS5508CPAGR supports audio sampling rates from 32kHz to 192kHz, identical to the TAS5518PAGR specification.
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