License

MIT

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LNA (SMD)

1 year ago 1076
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
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Description

EasyEDA project for easy and quick build LNA module. Project include schematic for LNA module and PCB's with differences in the power circuit and Bias Tee implementation (PCB with/without reverse polarity protection circuit, PCB with/without TCBT-14+ Bias Tee module). Version for mounting SMD components.

Current development progress:

Progress Progress Bug report

Input voltage: DC 6.2 - 15 V (external source) / DC 3.3 - 5.0 V (powered via Bias Tee);
Maximum DC current: 70 mA;
Frequency range: 50 MHz - 4 GHz (according to the datasheet on PSA4-5043+);
Gain: 25.4 dB, 50 MHz / 22.1 dB, 500 MHz / 18.4 dB, 1 GHz / 13.3 dB, 2 GHz / 10.2 dB, 3 GHz / 8.0 dB, 4 GHz;
Noise Figure: 0.73 dB, 50 MHz / 0.65 dB, 500 MHz / 0.75 dB, 1 GHz / 0.98 dB, 2 GHz / 1.1 dB, 3 GHz / 1.44 dB, 4 GHz;
RF connector: SMA;
Feed line: 50 Ohm coaxial cable;
Used PCB Material: FR-4;
PCB thickness: 1.6 mm;

EasySDR project page at GitHub
Based on: LNA4ALL Low Noise Amplifier
Buy SDR receiver: RTL-SDR.COM
Buy PSA4-5043+ Low Noise MMIC Amplifier: Mini-Circuits PSA4-5043+
Buy TCBT-14+ Bias Tee: TCBT-14+

List of changes:

Version 2.0.EE: changes of the toggle switch (SW1) on the printed circuit board, now the contacts of the case are soldered to the GND area. The RF line width has been recalculated using Saturn PCB Design V7.08. At the moment, the wave resistance of the RF line is close to 50 Ohms. Correcting a power-up error due to PCB trace in module LNA (SMD): Main module (simplified DC connector). PCB Implementation Fix for LNA (SMD): Main module (BT only).

How to contact me?

Documents

LNA (SMD): Main module

LNA (SMD): Main module (with RPP TCBT-14)

LNA (SMD): Main module (without RPP TCBT-14)

LNA (SMD): Main module (BT only)

LNA (SMD): Main module (simplified)

LNA (SMD): Main module (simplified DC connector)

LNA (SMD): Main module (with RPP)

LNA (SMD): Main module (without RPP)

BOM

ID Name Designator Footprint Quantity
1 IRLML6402 Q1 SOT-23(SOT-23-3) 1
2 100k R1 0805 1
3 BZV55-C10 D1 SOD-80C 1
4 8u2 L1 0805 1
5 100p C5 0805 1
6 100n C4,C2 0805 2
7 3k R2 0805 1
8 10u C1 0805 1
9 1000p C6 0805 1
10 TCBT-14+ U2 GU1414 (SPCB) 1
11 SMA RF IN J1 SMA-EDGE 1
12 SMA RF OUT J2 SMA-EDGE 1
13 DC005-2.0MM DC1 DC-5020 1
14 MTS-102-C3 SW1 MTS-102-C3 1
15 47u C3 CASE-B_3528 1
16 PSA4-5043+ U3 MMM1362 (SPCB) 1
17 BAV99 D2 SOT-23-3 1
18 LM1117IMPX-5.0 U1 SOT223 1
19 GREEN LED1 LED-0805 1
20 0R R0(DNI) 0805 1

Attachments

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Members

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