433MHz 5V Si4463 Data radio modem DRF4463D20-A2
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DRF4463D20-A2 is a 5V data radio modem based on RFIC SI4463 from Silicon labs. GFSK modulation /demodulation, multi-channel operation, high bandwidth efficiency and anti-blocking performance make DRF4463D20-A2 modules easy to realize the robust and reliable wireless link.
* 433MHz GFSK transceiver
* 20dBm output power
* -121dBm sensitivity
* 40Kbps RF data rate
* Multiple channels
* Standard TTL interface
* Baud rate configurable
* Four working modes
* RSSI data output
* Supply voltage: 3.4~5.5V

Home automation,  Security alarm,  Telemetry,  Automatic meter reading,  Contactless access,  Wireless data logger,  Remote motor control
The module can be configured to work in different channels. It adopts the high efficient looped interleaving EDAC (Error Detection and correction) coding with coding gain up to 3dB which keeps in advance in error correction and coding efficiency over normal FEC (Forward Error Correction) coding. Because of its high reliability in correction, modules can filter error and fake information automatically and realize truly transparent wireless link, which makes DRF4463D20-A2 very suitable in the rigid communication environment.
DRF4463D20-A2 integrates two 256 bytes buffer. When the buffer is empty, users can transfer nearly 256 bytes data per time and even limitless data transfer can be achieved as long as RF data rate is configured to be faster than UART data rate (MCU to RF module). DRF4463D20-A2 provides standard UART/TTL interface. Users can choose seven data rates and three parity checks which make DRF4463D20-A2 possibly tailor-made for different applications. The module can work in four different modes which are very suitable for battery powered-up applications. DRF4463D20-A2 is a 5V module and it operates at 3.4~5.5V.. DRF4463D20-A1 is a 3V module and it operates at 2.1~3.6V with low power consumption. Comparing to DRF4463D20-A1, DRF4463D20-A2 only has one LDO more so users can short the connection of LDO pad to change it to 3V module. In software the two types of modules are fully compatible.
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