Integration’s IA443x series of transceivers are members of the new EZRadioPRO™ product family. While retaining all the attractive features of the earlier products such as high integration, low cost, flexibility, low BOM, and easy design-in, these parts are targeted to more sophisticated applications and offer several enhanced parameters and features, including continuous frequency coverage from 240-960MHz, and output power up to +20dBm. Also included are built-in features like wake-up timer, low battery detector, transmit and receive data FIFOs, power-on reset circuit, and general purpose digital I/Os. The chip incorporates a high performance ADC and digital modem which perform demodulation, filtering, and packet handling in the digital domain, making it ideal for configuration to mutiple applications. These features simplify the task of the system designer and allow the use of lower-end microcontrollers. The 4432 has configurable output power from +11 to +20dBm and is ideal for Frequency Hopping Systems where maximum range is desired. The 4430/31 have configurable output power from -8 to +13dBm. Both the 4431 and 4432 comply with FCC and ETSI requirements when used in any of the standard ISM Bands. Only a 30MHz crystal and supply bypass capacitors are necessary as external components, making the devices ideal for high volume production in applications where size and cost are important.
Block Diagram

- Remote control
- Home security and alarm
- Wireless PC peripherals
- Toy control
- Remote keyless entry
- Health monitors
- Industrial control
- Telemetry
- Personal data logging
- Remote meter reading
- Home automation
- Sensor networks
Si4430 Data Sheet / Data Short
Si4431 Data Sheet / Data Short
Si4432 Data Sheet / Data Short