Silicon Laboratories Si4010 RF transmitter is its first single-chip remote control IC requiring only one external bypass capacitor, a printed circuit board, battery and external case with pushbuttons to create a complete wireless remote control.

Based on a crystal-less architecture, the Si4010 achieves ±150 ppm carrier frequency accuracy over the commercial temperature range and ±250 ppm over the industrial temperature range - twice the accuracy of traditional surface acoustical wave (SAW)-based transmitters - without using an external crystal.

The transmitter has automatic antenna tuning, featuring a tuning circuit that automatically fine tunes the antenna for optimum transmit efficiency and constant output power.

The Si4010's antenna tuning circuit continuously maximizes antenna efficiency by adjusting an on-chip variable capacitor to resonate with the antenna's inductance.

The Si4010 supports programmable edge rate control for on-off keying (OOK) mode to reduce harmonic emissions and comply with governmental RF regulations. It also outperforms competing discrete solutions, offering +10 dBm output power, exceptional range and robust links.

It has a 1.8 to 3.6V supply range, 10nA standby current and 20mA peak current.

The Si4010 contains an embedded 8051-compatible MCU core with 4 kB of RAM, 8 kB of one-time programmable (OTP) non-volatile memory, a 128-bit EEPROM and 12 kB of ROM for library functions.