Item Overview:
The RF4438PRO module uses the Silicon Lab Si4438-C device, a highly integrated wireless ISM band transceiver chip. Extremely low receive sensitivity (-124 dBm), combined with industry-leading output power of +20 dBm, ensures extended range and improved link performance. At the same time, built-in antenna diversity and support for frequency hopping can be used to further expand the range and improve performance.
Specifications:
Frequency range: 433 (customizable 425-525MHZ)
Power supply: 1.8-3.8 V
Operating temperature range: -40 ~ +85 °C
Sensitivity: up to -124dBm
Maximum output power: 20dBm (14mA@receiver status)
Data transfer rate: 0.1-500kbps (FSK modulation mode)
Features:
- Ultra low power shutdown mode
- Digital Received Signal Strength Indicator (RSSI)
- Timed wake-up function, frequency hopping function, power-on reset function, built-in crystal adjustment function
- Antenna automatic matching and bidirectional switch control,
- Pre-sync signal detection, low power detection
- 64-byte Transceiver Data Register (FIFO), configurable packet structure
- Temperature sensing and 8-bit analog-to-digital converter with integrated voltage regulator
Technical Parameters:| Parameter | Minimum | Typical | maximum | Unit | Condition |
| Operating conditions |
| Operating Voltage | 1.8 | 3.3 | 3.8 | V | |
| Operating temperature | -40 | | 85 | ℃ | |
| Current consumption |
| Receiving current | | 14 | | mA | Low power mode |
| Emission current | | 85 | | mA | @20dBm |
| Sleep current | | < 0.1 | | uA | |
| RF parameters |
Frequency Range
| 403 | 433 | 463 | MHZ | @433MHz |
| 833 | 868 | 898 | MHZ | @868MHz |
| Modulation rate | 0.1 | | 500 | Kbps | FSK |
| Transmit power | -5 | | 20 | dBm | |
| Receiving sensitivity | | -124 | | dBm | @data=500bps |
Application:
-remote control
- Remote meter reading
- Health monitoring
- Tag reader
Package Included:
1 x Wireless Transceiver Module
