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TAS5518CPAG Audio Modulator Equivalent & Substitute Parts
Part Overview
The TAS5518CPAG is an 8-channel audio modulator IC in 64-TQFP surface mount packaging designed for digital audio interfacing applications. This component 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 TAS5518CPAG carries a "Not For New Designs" product status designation. This classification necessitates identification of equivalent substitute components for ongoing production requirements, maintenance applications, and new design implementations where this functionality is required.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Function | Audio Modulator |
| Number of Channels | 8 |
| Interface Protocol | I2C, I2S |
| Voltage Supply Range | 3V ~ 3.6V |
| Audio Sampling Rate | 32kHz ~ 192kHz |
| Package Type | 64-TQFP (10x10) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -20°C ~ 70°C (TA) |
| RoHS Compliance | ROHS3 Compliant |
| Moisture Sensitivity Level | MSL 4 (72 Hours) |
Substitute Part Grouping Explanation
Substitution eligibility for the TAS5518CPAG is determined by strict alignment across the following critical parameters:
- Functional Equivalence: Both components must perform 8-channel audio modulation
- Interface Compatibility: I2C and I2S protocol support required
- Electrical Specifications: Identical supply voltage range (3V ~ 3.6V) and audio sampling rate capability (32kHz ~ 192kHz)
- Package Compatibility: Identical 64-TQFP (10x10) surface mount package
- Compliance Standards: ROHS3 compliance and MSL 4 rating maintained
The TAS5508CPAG meets all substitution criteria as a manufacturer-recommended equivalent. Both components share identical channel count, interface protocols, electrical operating parameters, and physical packaging specifications.
Parameter Comparison
| Parameter | TAS5518CPAG | TAS5508CPAG | Compatibility |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Match |
| Function | Audio Modulator | Audio Modulator | Match |
| Number of Channels | 8 | 8 | Match |
| Interface Protocol | I2C, I2S | I2C, I2S | Match |
| Voltage Supply Range | 3V ~ 3.6V | 3V ~ 3.6V | Match |
| Audio Sampling Rate | 32kHz ~ 192kHz | 32kHz ~ 192kHz | Match |
| Package Type | 64-TQFP (10x10) | 64-TQFP (10x10) | Match |
| Mounting Type | Surface Mount | Surface Mount | Match |
| Operating Temperature Range | -20°C ~ 70°C | 0°C ~ 70°C | Partial - TAS5508CPAG has narrower range |
| Product Status | Not For New Designs | Active | TAS5508CPAG preferred for new designs |
| RoHS Compliance | ROHS3 Compliant | ROHS3 Compliant | Match |
| Moisture Sensitivity Level | MSL 4 (72 Hours) | MSL 4 (72 Hours) | Match |
Engineering Selection Recommendations
The TAS5508CPAG is the manufacturer-recommended substitute for the TAS5518CPAG. Both components maintain identical electrical and mechanical specifications across all critical parameters including channel count, interface protocols, supply voltage, sampling rate capability, and physical packaging.
The primary distinction between these components is product lifecycle status. The TAS5518CPAG is designated "Not For New Designs," while the TAS5508CPAG maintains "Active" product status. This status difference, combined with the TAS5508CPAG's broader availability (108,200 units in stock versus 1,610 units), establishes it as the appropriate selection for new design implementations and ongoing production requirements.
The TAS5508CPAG exhibits a narrower operating temperature range (0°C ~ 70°C versus -20°C ~ 70°C). Applications requiring operation below 0°C must retain the TAS5518CPAG or evaluate alternative solutions outside this substitution group.
Both components maintain identical RoHS3 compliance and MSL 4 moisture sensitivity ratings, ensuring equivalent environmental and regulatory compliance.
Frequently Asked Questions (FAQ)
Q: Can the TAS5508CPAG directly replace the TAS5518CPAG in existing designs?
A: Yes, for applications operating within the 0°C to 70°C temperature range. Both components share identical channel count, interface protocols, supply voltage specifications, audio sampling rates, and 64-TQFP package configuration. Applications requiring operation below 0°C must retain the TAS5518CPAG.
Q: What is the primary reason for substituting the TAS5518CPAG?
A: The TAS5518CPAG carries "Not For New Designs" product status. The TAS5508CPAG is the active equivalent offering superior long-term availability and supply chain stability for new implementations.
Q: Are the physical packages identical?
A: Yes. Both components use 64-TQFP (10x10) surface mount packaging with identical pin configurations and footprint requirements.
Q: Do both components support the same interface protocols?
A: Yes. Both the TAS5518CPAG and TAS5508CPAG support I2C and I2S interface protocols with identical electrical specifications.
Q: What is the difference in operating temperature ranges?
A: The TAS5518CPAG operates from -20°C to 70°C, while the TAS5508CPAG operates from 0°C to 70°C. The TAS5508CPAG has a narrower lower temperature limit. Applications requiring sub-zero operation must use the TAS5518CPAG.
Q: Are compliance certifications identical?
A: Yes. Both components are ROHS3 compliant with MSL 4 moisture sensitivity ratings and identical REACH and ECCN classifications.
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