Description
BUY SI4401DDY https://www.utsource.net/itm/p/12603634.html
| Parameter |
Description |
Min |
Typ |
Max |
Unit |
| VCC |
Supply Voltage |
2.1 |
- |
3.6 |
V |
| ICC |
Supply Current (Active Mode) |
- |
2.5 |
- |
mA |
| ICC (Sleep) |
Supply Current (Sleep Mode) |
- |
0.5 |
- |
渭A |
| fOSC |
Oscillator Frequency |
13.56 |
16 |
26 |
MHz |
| RFREQ |
Frequency Range |
300 |
- |
960 |
MHz |
| POUT |
Output Power |
-20 |
0 |
+10 |
dBm |
| RDS |
Data Rate |
0.1 |
- |
200 |
kbps |
| TA |
Operating Temperature |
-40 |
- |
85 |
掳C |
| TSTG |
Storage Temperature |
-65 |
- |
150 |
掳C |
| ESD |
Electrostatic Discharge Tolerance |
- |
- |
2000 |
V |
Instructions for SI4401DDY
Power Supply:
- Ensure the supply voltage ( V_ ) is within the range of 2.1V to 3.6V.
- Use a stable power source to avoid fluctuations that can affect performance.
Oscillator Configuration:
- Connect an external crystal oscillator with a frequency between 13.56 MHz and 26 MHz to the XTAL1 and XTAL2 pins.
- Ensure the oscillator is stable and meets the specified frequency range.
Frequency Selection:
- Set the desired operating frequency within the range of 300 MHz to 960 MHz using the appropriate register settings.
- Refer to the datasheet for specific register configurations.
Output Power:
- Adjust the output power level from -20 dBm to +10 dBm using the PA_LEVEL register.
- Higher power levels may require additional heat dissipation considerations.
Data Rate:
- Set the data rate between 0.1 kbps and 200 kbps using the DATA_RATE register.
- Lower data rates provide better range and reliability but reduce throughput.
Temperature Considerations:
- Operate the device within the temperature range of -40掳C to 85掳C for optimal performance.
- Store the device within the temperature range of -65掳C to 150掳C to ensure long-term reliability.
ESD Protection:
- Handle the device with care to avoid damage from electrostatic discharge.
- Use proper ESD protection equipment and practices when handling the device.
Initialization:
- Follow the initialization sequence outlined in the datasheet to configure the device properly.
- Use the provided example code or reference designs to simplify the setup process.
Communication Interface:
- Use the SPI interface to communicate with the device.
- Ensure the SPI clock speed is within the supported range and that the communication protocol is correctly implemented.
Interrupt Handling:
- Configure and handle interrupts as needed to manage device events and status updates.
- Refer to the interrupt register documentation for specific event codes and handling procedures.
(For reference only)
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