Programmable pre-emphasis
Audio silence detector
Programmable reference clock
RDS/RBDS encoder
Programmable transmit level
Audio dynamic range control
Advanced modulation control
Integrated LDO regulator
Pb-free and RoHS Complian
t Designed for compatibility with cellular operation
Pin description:
LIN: Audio input, connected to the left channel of the headset.
RIN: Audio input, connect the right channel of the headset.
Vin: power supply voltage 3-5VDC.
GND: Grounded.
3V0: This is the regulator interface, connected to 3.3V voltage. If you need to 100 mA 3 volts, you can use this regulating voltage.
RST: reset.
CS: Select pin for spi mode. The i2c address was determined. When high level is connected (default), the i2c address is 0x63.
If there is ground or short circuit, the i2c address is 0 x11.
SCL: Clock pin, connected to microcontroller.
SDA: Data pin, connected to microcontroller.
GPIO: It can be used to flash the LED, the initial state has been set, and 3V output.