Details

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BUY LCS703LG https://www.utsource.net/itm/p/6492688.html
INTEGRATED LLC CONTROLLER

Parameter	Description	Value
Part Number	LCS703LG
Type	RF Low-Noise Amplifier (LNA)
Frequency Range	Operating Frequency	1.5 - 3.8 GHz
Gain	Gain	16 dB
Noise Figure	Noise Figure	0.9 dB
P1dB Compression Point	Output Power at 1 dB Compression	+20 dBm
IP3	Third-Order Intercept Point	+36 dBm
Input Return Loss	Input Return Loss	12 dB
Output Return Loss	Output Return Loss	12 dB
Supply Voltage	Operating Supply Voltage	2.7 - 5.5 V
Supply Current	Operating Supply Current	30 mA
Operating Temperature	Operating Temperature Range	-40°C to +85°C
Package	Package Type	SOT-89
Dimensions	Package Dimensions	4.9 x 6.2 x 1.4 mm

Instructions for Use

1. Power Supply:

   • Connect the supply voltage (Vcc) to the designated pin.
   • Ensure the supply voltage is within the specified range (2.7 - 5.5 V).
   • Use a decoupling capacitor (typically 10 nF) between Vcc and ground to filter out noise.

2. Biasing:

   • The LNA typically requires a bias resistor to set the operating current.
   • Calculate the bias resistor value using the formula ( R_ = frac{V_ - V_}{I_} ), where ( V_ ) is the gate-source voltage and ( I_ ) is the drain-source current.

3. Input and Output Matching:

   • Match the input and output impedances to 50 ohms for optimal performance.
   • Use matching networks consisting of inductors and capacitors as necessary.

4. Grounding:

   • Ensure a solid ground plane to minimize noise and improve stability.
   • Connect all ground pins to the ground plane with short, wide traces.

5. Layout Considerations:

   • Keep signal traces short and direct to minimize parasitic inductance and capacitance.
   • Use a shielded enclosure if operating in a noisy environment.

6. Testing:

   • Use a spectrum analyzer or network analyzer to verify gain, noise figure, and other performance parameters.
   • Test the LNA under various conditions to ensure it meets the specified performance over the entire operating temperature range.

7. Handling:

   • Handle the device with care to avoid damage from electrostatic discharge (ESD).
   • Follow proper ESD protection procedures when handling and soldering the device.

8. Storage:

   • Store the device in a dry, cool place away from direct sunlight and moisture.
   • Use anti-static packaging to protect the device during storage and transportation.

(For reference only)