Details

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BUY RDA1846 https://www.utsource.net/itm/p/11659105.html

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (VDD)	Operating supply voltage	2.7	-	5.5	V
Output Power	Maximum output power at 1.8V supply	-	10	-	dBm
Current Consumption	Current consumption at 1.8V supply and 10dBm output power	-	13.5	-	mA
Standby Current	Current consumption in standby mode	-	0.1	-	渭A
Operating Temperature	Range of operating temperatures	-40	-	85	掳C
Storage Temperature	Range of storage temperatures	-55	-	125	掳C
RF Input Impedance	Input impedance at RF pin	-	50	-	惟
RF Output Impedance	Output impedance at RF pin	-	50	-	惟
Modulation Schemes	Supported modulation schemes	-	GFSK, FSK, MSK, ASK, OOK, 2-FSK, 4-FSK	-	-
Data Rate	Maximum data rate	-	200	-	kbps
Frequency Range	Operating frequency range	240	-	960	MHz

Instructions for Using RDA1846

1. Power Supply:

   • Connect the VDD pin to a power supply within the range of 2.7V to 5.5V.
   • Ensure a stable power supply to avoid performance degradation.

2. Ground Connection:

   • Connect the GND pin to a common ground to ensure proper operation.

3. RF Input/Output:

   • Connect the RF input/output pins to a 50惟 impedance matching network.
   • Use appropriate filters and matching circuits to optimize performance.

4. Modulation and Data Rate:

   • Configure the modulation scheme and data rate according to your application requirements.
   • Refer to the datasheet for specific configuration details.

5. Temperature Considerations:

   • Operate the device within the temperature range of -40掳C to 85掳C for optimal performance.
   • Store the device in an environment with temperatures between -55掳C and 125掳C.

6. Standby Mode:

   • To reduce power consumption, use the standby mode by setting the appropriate control signals.
   • The current consumption in standby mode is approximately 0.1渭A.

7. Testing and Troubleshooting:

   • Use a spectrum analyzer to verify the output power and frequency stability.
   • Check for any interference or noise that might affect performance.

8. Schematic and Layout Guidelines:

   • Follow the recommended PCB layout guidelines to minimize parasitic effects and improve signal integrity.
   • Place decoupling capacitors close to the VDD and GND pins to filter out noise.

9. Regulatory Compliance:

   • Ensure that the design complies with relevant regulatory standards for radio frequency emissions and immunity.

For more detailed information, refer to the RDA1846 datasheet and application notes provided by the manufacturer.

(For reference only)