Description

SI4713 CJMCU-4713 FM Radio Transmitter Module Frequency Modulation DC 3-5V Digital Wireless Stereo Radio MCU Controller

1.Description:

It is a FM transmitter module.Based on the first-class Si4713,this breakout board is an all-in-one stereo audio FM transmitter.Connect your home controller to the I2C data cable to set the transmission frequency and play line level audio to the stereo headphone jack.

2.Feature:

1).It can transmit RDS/RBDS data.

2).It has a stereo headphone jack.

3).It supports I2C interface.

3.Parameter:

1).Product Name:FM Transmitter Module

2).Supply Voltage:DC 3V-5V

3).Communication Interface:I2C

4).Work Temperature:-25℃~85℃

5).Work Humidity:5%~95%RH

6).Size:40*20*7mm

4.Power Pins:

1).LIN:audio input,connect the left channel of the earphone

2).RIN:audio input,connect the right channel of the earphone

3).Vin:DC 3V-5V.

4).GND:this is power and logic ground,connect to your microcontroller's ground pin.

5).3Vo:this is the output from the onboard regulator,3.3V nominal.You can use this if you need up to 100mA of 3V regulated voltage

6).RST:Reset.

7).CS:Select pin,used in spi mode.The i2c address is determined.When connected to high level (default),the i2c address is 0x63.If it is grounded or short-circuited,the i2c address is 0x11.

8).SCL:Clock pin,connected to the microcontroller.

9).SDA:Data pin,connected to the microcontroller.

10).GPIO:can be used to make the LED blink,the initial state has been set,3V output.

5.Package:

1).1pc * FM Transmitter Module

2).1pc * 11 Pin Headers