GENERAL DESCRIPTION
The SX1243 is an ultra-low-cost, fully integrated FSK or OOK transmitter suitable for operation between 310 and 450 MHz, 860 and 870 MHz, as well as 902 and 928 MHz.
For applications where economy is paramount, the SX1243 may be used without the requirement for configuration via an MCU. However, in conjunction with a microcontroller the communication link parameters may be re-configured. Including, output power, modulation format and operating channel.

KEY PRODUCT FEATURES
♦ +10 dBm or 0 dBm Configurable output power
♦ Bit rates up to 100 kbps
♦ OOK and FSK modulation.
♦ 1.8 to 3.7 V supply range.
♦ Low BOM Fully Integrated Tx
♦ Fractional-N PLL with 1.5 kHz typical step
♦ Frequency agility for FHSS modulation
♦ FCC CFR Part 15.247 Digital Modulation Techniques

APPLICATIONS
♦ Garage Door Openers
♦ Low-Cost Consumer Electronic Applications
♦ Remote Keyless Entry (RKE)
♦ Remote Control / Security Systems