Si4355 EASY-TO-USE, LOW-CURRENT OOK/(G)FSK SUB-GHZ RECEIVER Description Silicon Laboratories’ Si4355 is an easy to use, low current, sub-GHz EZRadio® receiver. 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 Si4355 both space efficient and cost effective. Excellent sensitivity of 116 dBm allows for a longer operating range, while the low current consumption of 10 mA active 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 Si4355 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. Like all Silicon Laboratories’ EZRadio devices, the Si4355 is fully compliant with all worldwide regulatory standards, such as FCC, ETSI, and ARIB. GPIO3 Features - Frequency range = 283–960 MHz - Receive sensitivity = –116 dBm - Modulation - (G)FSK - OOK - Low RX Current = 10 mA - Low standby current = 50 nA - Max data rate = 500 kbps - Power supply = 1.8 to 3.6 V - 64 byte FIFO - Auto frequency control (AFC) - Automatic gain control (AGC) - Integrated battery voltage sensor - Packet handling including preamble, sync word detection, and CRC - Low BOM - 20-Pin 3 mm x 3 mm QFN package Applications - Remote control Home security and alarm Telemetry Garage and gate openers Remote keyless entry Home automation Industrial control Sensor networks Health monitors GPIO2 XIN XOUT Synthesizer SDN 25-32MHz XO Rx Chain RXn LNA PGA ADC Rx Modem SPI Interface Controller RXp nSEL SDI SDO SCLK nIRQ Battery Voltage Sensor Aux ADC VDD EZRadio GPIO1 GPIO0 Copyright © 2012 by Silicon Laboratories 07.12.12 Si4355 EASY-TO-USE, LOW-CURRENT OOK/(G)FSK SUB-GHZ RECEIVER Selected Electrical Specification Parameter Symbol Min Typ Max Supply Voltage VDD 1.8 3.3 3.6 V Frequency Range FRX 283 — 350 MHz 425 — 525 MHz 850 — 960 MHz IShutdown — 30 — nA IStandby — 50 — nA IRX — 10 — mA Current Consumption Rx Sensitivity Test Condition Unit PRX-_2 BER <0.1%, 2.4 kbps, GFSK, BT = 0.5, ∆F = 25kHz, 114 kHz Rx BW — –116 — dBm PRX-_OOK BER < 0.1%, 1 kbps, 185 kHz Rx BW, OOK, PN15 data — –113 — dBm C/I1-CH ±1 Channel Offset — –56 — dB C/I2-CH ±2 Channel Offset — –59 — dB 200kBLOCK 200 kHz–1 MHz Offset — –58 — dB 1MBLOCK 1 MHz Offset — –61 — dB 8MBLOCK 8 MHz Offset — –79 — dB Image Rejection ImREJ Rejection at the image frequency IF = 468 kHz — –35 — dB Data Rate DRFSK (G)FSK Modulation 1.0 — 500 kbps DROOK OOK Modulation 0.5 — 120 kbps Selectivity2 Blocking2 Notes: 1. Test Conditions: 3.3 VDC VDD, 25 °C, external reference signal (XIN) = 1.0 VPP at 30MHz, centered around 0.8 VDC. Sensitivity measured at 434 MHz. 2. Desired reference signal 3 dB above sensitivity, BER < 0.1%, Interferer is CW and desired modulation with 2.4 kbps, ∆F = 30 kHz, GFSK with BT = 0.5, Rx BW = 114 kHz, 100 kHz channel spacing. Ordering Guide Part Number* Description Package Type Operating Temperature Si4355-B1A-FM EZRadio Transceiver 3x3 QFN-20 Pb-free –40 to 85 °C *Note: Add an “R” at the end of the device part number to denote tape and reel option. Application Circuit 13 SDI GP2 SDO GP3 SCLK GP4 nIRQ 12 11 GPIO1 10 9 GP5 Microcontroller 16 nSEL XOUT 17 XIN 18 GPIO2 19 Si4355 4 NC 5 C2 15 GPIO0 RXn 3 8 RXp GP1 14 GND C3 L4 C1 6 C4 L1 GND L2 L3 GP0 2 7 SDN 1 VDD GND VDD C5 20 GPIO3 30 MHz VDD EZRadio C6 C7 C8 100 p 100 n 1u Copyright © 2012 by Silicon Laboratories Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders 07.12.12 Smart. Connected. Energy-Friendly Products Quality Support and Community www.silabs.com/products www.silabs.com/quality community.silabs.com Disclaimer Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. 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