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RF4438PRO 433MHz Embedded SPI Interface Wireless Transceiver Module


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                  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.
                  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)
                  – 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
                  -remote control
                  – Remote meter reading
                  – Health monitoring
                  – Tag reader
                  Package Included:
                  1 x Wireless Transceiver Module

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