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| Part Number | SI4721-B20-GM | SI4721-B20-GMR | SI4720-B20-GM |
|---|---|---|---|
| Manufacturer | Skyworks Solutions Inc. | Skyworks Solutions Inc. | Skyworks Solutions Inc. |
| Product Status | Obsolete | Obsolete | Obsolete |
| Type | TxRx Only | TxRx Only | TxRx Only |
| RF Family/Standard | VHF | VHF | VHF |
| Protocol | FM Radio | FM Radio | FM Radio |
| Modulation | - | - | - |
| Frequency | 76MHz ~ 108MHz | 76MHz ~ 108MHz | 76MHz ~ 108MHz |
| Data Rate (Max) | - | - | - |
| Power - Output | - | - | - |
| Sensitivity | - | - | - |
| Memory Size | - | - | - |
| Serial Interfaces | I²S, SPI | I²S, SPI | I²S, SPI |
| GPIO | 3 | 3 | 3 |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Current - Receiving | 16.8mA ~ 19.8mA | 16.8mA ~ 19.8mA | 16.8mA ~ 19.8mA |
| Current - Transmitting | 18.3mA ~ 18.8mA | 18.3mA ~ 18.8mA | 18.3mA ~ 18.8mA |
| Operating Temperature | -40°C ~ 95°C | -40°C ~ 95°C | -40°C ~ 95°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 20-UFQFN Exposed Pad | 20-UFQFN Exposed Pad | 20-UFQFN Exposed Pad |
| Supplier Device Package | 20-QFN (3x3) | 20-QFN (3x3) | 20-QFN (3x3) |
