Maker : Silicon Labs
Part No. : SI4432

  Datasheet PDF : SI4432.pdf
  Cross Reference : SI4432 Cross Reference
  Buy Component : SI4432 Find Stock and Price

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Product Information

www.DataSheet4U.com Si4432 Si4432 ISM T RANSCEIVER Features           Frequency Range = 240–930 MHz Sensitivity = –118 dBm +20 dBm Max Output Power Configurable +11 to +20 dBm Low Power Consumption 18.5 mA receive 27 mA @ +11 dBm transmit Data Rate = 1 to 128 kbps Power Supply = 1.8 to 3.6 V Ultra low power shutdown mode Digital RSSI Wake-on-radio Auto-frequency calibration (AFC)               Antenna diversity and TR switch control Configurable packet structure Preamble detector TX and RX 64 byte FIFOs Low battery detector Temperature sensor and 8-bit ADC –40 to +85 °C temperature range Integrated voltage regulators Frequency hopping capability On-chip crystal tuning 20-Pin QFN package FSK, GFSK, and OOK modulation Low BOM Power-on-reset (POR) Ordering Information: See page 156. Pin Assignments Si4432 XOUT        Remote control Home security & alarm Telemetry Personal data logging Toy control Tire Pressure monitoring Wireless PC peripherals        Remote meter reading Remote keyless entry Home automation Industrial control Sensor networks Health monitors Tag readers 20 19 18 17 16 VDD_RF TX RXp RXn VR_IF Metal Paddle 1 2 3 4 5 6 NC 7 GPIO_0 8 GPIO_1 9 10 GPIO_2 VDR 15 14 13 12 11 SCLK SDI SDO VDD_DIG NC Description Silicon Laboratories’ Si4432 highly integrated, single chip wireless ISM transceiver is part of the EZRadioPRO™ family. The EZRadioPRO family includes a complete line of transmitters, receivers, and transceivers allowing the RF system designer to choose the optimal wireless part for their application. The Si4432 offers advanced radio features including continuous frequency coverage from 240–930 MHz and adjustable output power of up to +20 dBm. The Si4432’s high level of integration offers reduced BOM cost while simplifying the overall system design. The extremely low receive sensitivity (–118 dBm) coupled with industry leading +20 dBm output power ensures extended range and improved link performance. Built-in antenna diversity and support for frequency hopping can be used to further extend range and enhance performance. Additional system features such as an automatic wake-up timer, low battery detector, 64 byte TX/RX FIFOs, automatic packet handling, and preamble detection reduce overall current consumption and allow the use of lower-cost system MCUs. An integrated temperature sensor, general purpose ADC, poweron-reset (POR), and GPIOs further reduce overall system cost and size. The Si4432’s digital receive architecture features a high-performance ADC and DSP based modem which performs demodulation, filtering, and packet handling for increased flexibility and performance. This digital architecture simplifies system design while allowing for the use of lower-end MCUs. The direct digital transmit modulation and automatic PA power ramping ensure precise transmit modulation and reduced spectral spreading ensuring compliance with FCC and ETSI regulations. Preliminary Rev. 0.4 6/09 Copyright © 2009 by Silicon Laboratories Patents pending nSEL nIRQ SDN Applications XIN Si4432 This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Si4432 www.DataSheet4U.com Functional Block Diagram VDD_DIG VDD_RF RF LDO PLL LDO VCO LDO RC 32K OSC VCO LPF CP PFD 30M XTAL OSC LBD TX PA SDN nSEL Temp Sensor 8Bit ADC Low Power Digital LDO Digital LDO POR Xin PA_RAMP PWR_CTRL N Delta Sigma Modulator ANTDIV TXRXSW PA_RAMP PWR_CTRL TXMOD Digital Logic SCLK SDI SDO VDD_DIG SPI, & Controller Digital Modem AGC Control RFp RFn ADC LNA Mixers IF LDO VR_IF BIAS PGA GPIO_0 GPIO_1 GPIO_2 VR_DIG 2 Preliminary Rev. 0.4 Xout Si4432 www.DataSheet4U.com TABLE O F C ONTENTS Section Page 1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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