LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER
Si4455
EASY-TO-USE, LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER
Features
Frequency range =
Max data rate = 500 kb...
Description
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...
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