4455C-868-PDK Silicon Labs

Si4455 EASY-TO-USE, LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER Features Frequency Max data rate = 500 kbps range = 283960 MHz Power supply = 1.8 to 3.6 V Receive TX and RX 64 byte FIFOs sensitivity = 116 dBm Automatic frequency control (AFC) Modulation Automatic gain control (AGC) (G)FSK Integrated battery voltage sensor OOK Packet handling including Max output power = +13 dBm preamble, sync word detection, and Low active power consumption CRC 10 mA RX Low BOM 18 mA TX +10 dBm 20-Pin 3x3 mm QFN package Low standby current = 50 nA Pin Assignments Applications Remote control Remote keyless entry Home security and alarm Home automation Telemetry Industrial control GND 1 20 19 18 17 16 nSEL Garage and gate openers Sensor networks SDN 2 15 SDI Health monitors RXp 3 14 SDO Si4455 Description RXn 4 13 SCLK TX 5 12 nIRQ Silicon Laboratories Si4455 is an easy-to-use, low current, sub-GHz EZRadio transceiver. Covering all major bands, it combines GND 6 7 8 9 10 11 GPIO1 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 +13dBm output power and excellent sensitivity of 116 dBm allows for a longer operating range, while the low current Patents pending 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 interface to the MCU, the Si4455 makes realizing this performance in an application easy. Design simplicity is further exemplified in the Wireless Development Suite (WDS) user interface module. This configuration module provides simplified programming options for a broad range of applications in an easy to use format that results in both a faster and lower risk development. The Si4455 is capable of supporting major worldwide regulatory standards such as FCC, ETSI, ARIB and China regulatory standards. Rev 1.1 10/13 Copyright 2013 by Silicon Laboratories Si4455 Not Recommended for New Designs VDD GPIO3 VDD GPIO2 GND XIN GPIO0 XOUTSPI Interface Controller Si4455 Functional Block Diagram GPIO3 GPIO2 XIN XOUT Synthesizer SDN 25-32MHz XO Rx Chain nSEL SDI RXp Rx/Tx LNA PGA ADC SDO Modem RXn SCLK nIRQ Battery TX PA Voltage Aux ADC GPIO1 Sensor VDD GPIO0 2 Rev 1.1 Not Recommended for New Designs