Si4455

Si4455 EASY-TO-USE, LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER Features  Frequency range =  Max data rate = 500 kbps 283–960 MHz  Power supply = 1.8 to 3.6 V  Receive sensitivity = –116 dBm  Modulation  TX and RX 64 byte FIFOs  Automatic frequency control (AFC)  Automatic gain control (AGC) (G)FSK  Integrated battery voltage sensor OOK  Max output power = +13 dBm  Packet handling including preamble, sync word detection, and  Low active power consumption CRC 10 mA RX  Low BOM 18 mA TX @ +10 dBm  Low standby current = 50 nA  20-Pin 3x3 mm QFN package Applications Pin Assignments GPIO3 GPIO2 XIN XOUT  Remote control  Home security and alarm  Telemetry  Garage and gate openers  Remote keyless entry  Home automation  Industrial control  Sensor networks  Health monitors Description Silicon Laboratories’ Si4455 is an easy-to-use, low current, sub-GHz EZRadio® transceiver. Covering all major bands, it combines plug-and-play simplicity with the flexibility needed to handle a wide variety of applications. The compact 3x3 mm package size combined with a low external BOM count makes the Si4455 both space efficient and cost effective. The +13 dBm output power and excellent sensitivity of –116 dBm allows for a longer operating range, while the low current consumption of 18 mA TX (at 10 dBm), 10 mA RX, and 50 nA standby, provides for superior battery life. By fully integrating all components from the antenna to the GPIO or SPI interfa...