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SI4755-A10-AM RF Receiver Equivalent & Substitute Parts
Part Overview
The SI4755-A10-AM is an RF receiver IC manufactured by Skyworks Solutions Inc., designed for AM/FM radio reception across the frequency ranges of 520kHz to 1.71MHz and 64MHz to 108MHz. This device is packaged in a 32-QFN (5x5) surface mount configuration with an exposed pad, suitable for PCB integration in general-purpose radio applications.
The SI4755-A10-AM is classified as obsolete. Locating equivalent or substitute components becomes necessary when original stock is depleted or when design revisions require active product status for long-term supply chain reliability and manufacturer support.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SI4755-A10-AM |
| Manufacturer | Skyworks Solutions Inc. |
| Frequency Range | 520kHz ~ 1.71MHz, 64MHz ~ 108MHz |
| Modulation/Protocol | AM, FM |
| Supply Voltage | 2.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Package Type | 32-VFQFN Exposed Pad |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the SI4755-A10-AM is determined by the following critical parameters:
- Frequency Coverage: Both AM (520kHz ~ 1.71MHz) and FM (64MHz ~ 108MHz) bands must be supported
- Modulation Support: AM and FM demodulation capability required
- Package Configuration: 32-QFN (5x5) with exposed pad for mechanical and thermal compatibility
- Supply Voltage Range: 2.7V ~ 5.5V compatibility for power supply integration
- Operating Temperature Range: -40°C ~ 85°C for environmental specification alignment
- Mounting Technology: Surface mount configuration for PCB assembly compatibility
- Moisture Sensitivity: MSL 2 (1 Year) for handling and storage requirements
The SI4755-A40-AM meets all substitution criteria as it maintains identical frequency coverage, package geometry, electrical specifications, and environmental ratings while offering active product status.
Parameter Comparison
| Parameter | SI4755-A10-AM | SI4755-A40-AM | Match Status |
|---|---|---|---|
| Manufacturer | Skyworks Solutions Inc. | Skyworks Solutions Inc. | Identical |
| Frequency Range | 520kHz ~ 1.71MHz, 64MHz ~ 108MHz | 520kHz ~ 1.71MHz, 64MHz ~ 108MHz | Identical |
| Modulation/Protocol | AM, FM | AM, FM, RDS | Compatible (substitute adds RDS) |
| Supply Voltage | 2.7V ~ 5.5V | 2.7V ~ 5.5V | Identical |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | Identical |
| Package Type | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | Identical |
| Mounting Type | Surface Mount | Surface Mount | Identical |
| Moisture Sensitivity Level | 2 (1 Year) | 2 (1 Year) | Identical |
| Product Status | Obsolete | Active | Substitute is active |
Engineering Selection Recommendations
The SI4755-A40-AM is a direct functional substitute for the SI4755-A10-AM. Both devices share identical electrical specifications, frequency coverage, package geometry, and environmental operating ranges. The SI4755-A40-AM provides the additional advantage of active product status, ensuring continued manufacturer support, availability, and compliance with current supply chain requirements.
The SI4755-A40-AM includes RDS (Radio Data System) capability in addition to AM/FM demodulation. This enhancement does not compromise backward compatibility with applications designed for the SI4755-A10-AM, as RDS functionality is optional and does not affect core AM/FM receiver operation.
Both parts carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, confirming regulatory equivalence for export and tariff purposes.
Frequently Asked Questions (FAQ)
Q: Can the SI4755-A40-AM directly replace the SI4755-A10-AM in existing designs?
A: Yes. The SI4755-A40-AM is pin-compatible, package-compatible, and electrically compatible with the SI4755-A10-AM. No PCB modifications or design changes are required for substitution.
Q: What is the difference between the SI4755-A10-AM and SI4755-A40-AM?
A: The primary difference is product status: the SI4755-A10-AM is obsolete, while the SI4755-A40-AM is active. The SI4755-A40-AM includes RDS demodulation capability, which the SI4755-A10-AM does not. All other electrical and mechanical specifications are identical.
Q: Does the RDS capability in the SI4755-A40-AM affect AM/FM reception?
A: No. RDS is an optional feature that operates independently of AM/FM demodulation. Applications that do not require RDS functionality will operate identically to designs using the SI4755-A10-AM.
Q: Are the package and moisture sensitivity specifications identical?
A: Yes. Both parts use the 32-VFQFN exposed pad package with MSL 2 (1 Year) moisture sensitivity rating. Handling, storage, and assembly procedures are identical.
Q: What is the supply voltage compatibility?
A: Both parts operate across the identical 2.7V to 5.5V supply voltage range. No power supply modifications are necessary for substitution.
Q: Are there any compliance or certification differences?
A: No. Both parts carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, confirming regulatory equivalence.
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