 Integrated receive power measurement  Worldwide FM band support (76–108 MHz)

 Requires only two external components

 Frequency synthesizer with integrated VCO

 Digital stereo modulator

 Programmable pre-emphasis

 Analog/digital audio interface

 Audio silence detector

 Programmable reference clock

 RDS/RBDS encoder (Si4711 only)

 PCB loop and stub antenna support with self-calibrated capacitor tuning  Programmable transmit level  Audio dynamic range control

 Advanced modulation control

 2.7 to 5.5 V supply voltage

 Integrated LDO regulator

 3 x 3 x 0.55 mm 20-pin QFN Pb-free and RoHS Compliant

 Designed for compatibility with cellular operation