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BUY RDA3118E28 https://www.utsource.net/itm/p/12603796.html

Below is the parameter table and instructions for the RDA3118E28, a high-efficiency power amplifier designed for 4G LTE applications.

RDA3118E28 Parameter Table

Parameter	Symbol	Min	Typ	Max	Unit	Test Condition
Supply Voltage	Vcc	3.0	3.4	4.2	V	-
Operating Temperature	Ta	-40	-	85	掳C	-
Output Power	Pout	-	28	-	dBm	Vcc = 3.4V, 2300MHz
Gain	G	-	36	-	dB	Vcc = 3.4V, 2300MHz
Power Added Efficiency (PAE)	PAE	-	45	-	%	Vcc = 3.4V, 2300MHz, Pout = 28dBm
Current Consumption	Icc	-	250	-	mA	Vcc = 3.4V, 2300MHz, Pout = 28dBm
Input Return Loss	RLin	-	-15	-	dB	Vcc = 3.4V, 2300MHz
Output Return Loss	RLout	-	-15	-	dB	Vcc = 3.4V, 2300MHz
Harmonic Suppression	H1	-	-35	-	dBc	Vcc = 3.4V, 2300MHz, Pout = 28dBm
Adjacent Channel Leakage Ratio (ACLR)	ACLR	-	-45	-	dBc	Vcc = 3.4V, 2300MHz, Pout = 28dBm
Package Type	-	-	QFN-16	-	-	-

Instructions for RDA3118E28

1. Supply Voltage (Vcc):

   • Ensure the supply voltage is within the range of 3.0V to 4.2V.
   • Use a stable and clean power source to avoid noise and instability.

2. Operating Temperature:

   • The device is designed to operate within the temperature range of -40掳C to 85掳C.
   • Ensure proper heat dissipation to prevent overheating, especially in high-power applications.

3. Output Power (Pout):

   • The typical output power is 28dBm at 2300MHz with a supply voltage of 3.4V.
   • Adjust the input signal level to achieve the desired output power.

4. Gain (G):

   • The typical gain is 36dB at 2300MHz with a supply voltage of 3.4V.
   • Ensure the input signal level is appropriate to avoid saturation or distortion.

5. Power Added Efficiency (PAE):

   • The typical PAE is 45% at 2300MHz with a supply voltage of 3.4V and an output power of 28dBm.
   • Optimize the biasing and matching networks to maximize efficiency.

6. Current Consumption (Icc):

   • The typical current consumption is 250mA at 2300MHz with a supply voltage of 3.4V and an output power of 28dBm.
   • Ensure the power supply can handle the current requirements.

7. Input and Output Return Loss (RLin, RLout):

   • The typical return loss is -15dB at 2300MHz.
   • Use proper impedance matching to minimize reflections and improve performance.

8. Harmonic Suppression (H1):

   • The typical harmonic suppression is -35dBc at 2300MHz with a supply voltage of 3.4V and an output power of 28dBm.
   • Use filters if necessary to further suppress harmonics.

9. Adjacent Channel Leakage Ratio (ACLR):

   • The typical ACLR is -45dBc at 2300MHz with a supply voltage of 3.4V and an output power of 28dBm.
   • Ensure proper filtering and isolation to meet regulatory requirements.

10. Package Type:

    • The RDA3118E28 is packaged in a QFN-16 package.
    • Follow the recommended PCB layout and soldering guidelines to ensure reliable operation.

PCB Layout Guidelines

• Ground Plane:
  • Use a solid ground plane beneath the device to minimize noise and improve thermal performance.
• Power Decoupling:
  • Place decoupling capacitors close to the Vcc pin to filter out high-frequency noise.
• Signal Lines:
  • Keep signal lines short and direct to minimize losses and reflections.
• Thermal Management:
  • Provide adequate thermal vias to the ground plane to dissipate heat effectively.

Soldering Guidelines

• Soldering Temperature:
  • Use a soldering temperature of 260掳C for a maximum of 10 seconds.
• Soldering Profile:
  • Follow the recommended soldering profile to avoid damage to the device.

By following these parameters and instructions, you can ensure optimal performance and reliability of the RDA3118E28 in your 4G LTE applications.

(For reference only)