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مستندات:
دیتاشیت Si4703
Description:
This module is based on
the Si4713 chip. The Si4713 integrates the complete transmit functions
for standards-compliant unlicensed FM broadcast stereo transmission. The
chip also allows an integrated power scanning receiver to identify low
signal power FM channels.
Users must comply with local regulations on
radio frequency (RF) transmission. You can wire up to your favorite
microcontroller to the I2C data lines to set the transmit frequency and
play line-level audio into the stereo headphone jack.
This transmitter even has RDS/RBDS support, which is text/data transmissions that many modern FM receivers support.
Features:
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 (Si4713 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
Designed for compatibility with the cellular operation