Technical Specifications of SI4438-B1C-FMR
| Datasheet |  SI4438-B1C-FMR datasheet |
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| Category | RF/IF and RFID |
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| Family | RF Transceiver ICs |
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| Manufacturer | Silicon Labs |
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| Series | - |
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| Packaging | Tape & Reel (TR) |
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| Part Status | Active |
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| Type | TxRx + MCU |
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| RF Family/Standard | General ISM < 1GHz |
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| Protocol | - |
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| Modulation | FSK, GFSK, GMSK, OOK |
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| Frequency | 425MHz ~ 525MHz |
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| Data Rate (Max) | 500kbps |
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| Power - Output | 20dBm (Max) |
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| Sensitivity | -124dBm |
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| Memory Size | - |
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| Serial Interfaces | SPI |
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| GPIO | 4 |
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| Voltage - Supply | 1.8 V ~ 3.6 V |
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| Current - Receiving | 14mA |
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| Current - Transmitting | 75mA |
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| Operating Temperature | -40°C ~ 85°C |
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| Package / Case | 20-VFQFN Exposed Pad |
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