Details

---

BUY Si47962 https://www.utsource.net/itm/p/12607073.html

Below is the parameter table and instructions for the SI47962, a highly integrated AM/FM radio receiver with RDS/RBDS support.

Parameter Table

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	VDD	2.7	3.3	5.5	V	Operating supply voltage
Supply Current (Active Mode)	IDD	-	10	-	mA	Typical current consumption in active mode
Supply Current (Shutdown)	IDD_SHDN	-	0.1	-	渭A	Typical current consumption in shutdown mode
Operating Temperature	Toper	-40	25	85	掳C	Operating temperature range
Storage Temperature	Tstg	-40	25	85	掳C	Storage temperature range
FM Tuning Range	FRANGE	87.5	-	108.0	MHz	FM tuning range
AM Tuning Range	ARANGE	520	-	1710	kHz	AM tuning range
RDS Data Rate	RDSRATE	1187.5	-	1187.5	bps	RDS data rate
Audio Output Power	POUT	-	10	-	mW	Typical audio output power into 32惟 load
Signal-to-Noise Ratio (FM)	SNR_FM	-	65	-	dB	Typical signal-to-noise ratio for FM reception
Signal-to-Noise Ratio (AM)	SNR_AM	-	45	-	dB	Typical signal-to-noise ratio for AM reception
Sensitivity (FM)	SENS_FM	-	-105	-	dBuV	Typical sensitivity for FM reception
Sensitivity (AM)	SENS_AM	-	-100	-	dBuV	Typical sensitivity for AM reception

Instructions

1. Power Supply

• Supply Voltage (VDD): Connect the VDD pin to a stable power supply within the range of 2.7V to 5.5V.
• Ground (GND): Ensure a solid ground connection for all pins labeled GND.

2. Initialization

• Reset: Apply a low pulse to the RESET pin for at least 100 渭s to initialize the device.
• Configuration Registers: Use I2C or SPI to configure the device according to your application needs. Refer to the datasheet for register addresses and bit definitions.

3. Tuning and Reception

• FM Tuning:
  • Set the desired frequency using the appropriate register commands.
  • Monitor the RSSI (Received Signal Strength Indicator) and AFC (Automatic Frequency Control) values to ensure optimal tuning.
• AM Tuning:
  • Set the desired frequency using the appropriate register commands.
  • Monitor the RSSI value to ensure optimal tuning.
• RDS/RBDS:
  • Enable RDS/RBDS decoding by setting the appropriate bits in the configuration registers.
  • Read the RDS/RBDS data from the designated registers.

4. Audio Output

• Volume Control: Adjust the volume level using the volume control register.
• Mute Function: Mute the audio output by setting the mute bit in the appropriate register.
• Output Configuration: Configure the audio output to either line out or speaker out as per your requirement.

5. Power Management

• Shutdown Mode: Enter shutdown mode by setting the shutdown bit in the power management register to reduce power consumption.
• Standby Mode: Use standby mode to reduce power consumption while maintaining some functionality.

6. Error Handling

• Error Detection: Monitor the status registers for error flags such as loss of signal, overrange, and other conditions.
• Error Recovery: Implement error recovery routines to handle and correct errors as needed.

7. Programming Considerations

• I2C/SPI Communication: Ensure proper communication protocols are followed for I2C or SPI interfaces.
• Timing Requirements: Adhere to the timing requirements specified in the datasheet for register reads and writes.

For detailed information on specific register settings and advanced features, refer to the SI47962 datasheet and application notes provided by Silicon Labs.

(For reference only)