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Parameter | Min | Typ | Max | Unit | Condition |
Working Condition | |||||
Working voltage range | 1.8 | 3.3 | 3.8 | V | |
Temperature voltage | -40 | 85 | ℃ | ||
Current Consumption | |||||
Receiving current | 14 | mA | |||
Transmitting current | 85 | mA | @20dBm | ||
Sleep current | < 0.1 | uA | |||
Parameter | |||||
Frequency range | 425 | 433 | 463 | MHz | @433MHz |
470 | 490 | 510 | MHz | @470MHz | |
Modulation rate | 0.1 | 500 | Kbps | FSK | |
Output power range | -20 | 20 | dBm | ||
Receiving sensitivity | -124 | dBm | @data=500bps |
Modulation | (G)FSK |
Chip | si4438 |
Frequency | 433MHz |
Output Power | 100mW |
Interface | SPI |
Pin NO. | Pin Name | Description |
1 | GND | Power ground |
2 | NC | NC |
3 | GPIO0 | GPIO0 of Si4468 |
4 | GPIO1 | GPIO1 of Si4468 |
5 | VCC | Positive power supply 3.3V |
6 | SDO | Serial data out for SPI interface. |
7 | SDI | Serial data in for SPI interface |
8 | SCLK | Serial data clock for SPI interface |
9 | nSEL | Serial data selection for SPI interfaces. |
10 | nIRQ | Interrupt output |
11 | SDN | Power down control. SDN = 1, power down SDN = 0, normal working |
12 | GND | Power ground |
13 | GND | power ground |
14 | ANT | Connect with 50 ohm coaxial antenna |
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