Details

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BUY SI4706-B20-GMR https://www.utsource.net/itm/p/11530096.html

Parameter	Description	Value
Part Number	Full part number	SI4706-B20-GMR
Function	Integrated FM radio receiver with RDS
Frequency Range	FM frequency range	87.5 MHz to 108 MHz
Supply Voltage	Operating voltage range	1.8V to 3.6V
Current Consumption	Typical current consumption in active mode	8.5 mA
Sensitivity	FM sensitivity at 12 dB SINAD	-99 dBuV
Max Input Level	Maximum allowable input signal level without distortion	+20 dBuV
RDS Support	Supports Radio Data System for receiving station info	Yes
Interface	Digital interface type	I2C, SPI
Package Type	Package style	QFN-20
Operating Temperature	Temperature range for operation	-40°C to +85°C

Instructions for Use:

1. Power Supply Connection:

   • Connect the VDD pin to a power supply within the specified range (1.8V to 3.6V).
   • Ensure stable power supply to avoid performance issues.

2. Grounding:

   • Connect all ground pins (GND) to a common ground point to ensure proper operation and noise reduction.

3. Antenna Connection:

   • Connect an appropriate antenna to the designated antenna pin for optimal reception.
   • For best performance, use a high-quality external antenna.

4. Digital Interface Setup:

   • Configure the digital interface (I2C or SPI) according to your system requirements.
   • Refer to the datasheet for specific register settings and command sequences.

5. Tuning Frequency:

   • Use the provided software commands to tune to desired FM frequencies within the supported range (87.5 MHz to 108 MHz).

6. RDS Configuration:

   • Enable and configure RDS functionality through the appropriate registers if needed for receiving station information.

7. Signal Processing:

   • Process the received audio signal using the integrated demodulator and any additional filtering as required by your application.

8. Thermal Considerations:

   • Ensure adequate heat dissipation if operating in environments approaching the upper temperature limit.

9. Handling Precautions:

   • Handle the device with care to avoid damage from electrostatic discharge (ESD).

For detailed programming and configuration, refer to the full datasheet and application notes provided by Silicon Labs.

(For reference only)