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STD LNA with 137MHz bandpass
License: Public Domain
Mode: Editors' pick
- 1
Update time：
2021-09-10 19:48:19
Creation time：
2020-11-10 05:03:31
Description
LNA is based on the ADL5536 \(Datasheet: https://datasheet\.lcsc\.com/szlcsc/1806111019\_Analog\-Devices\-ADL5536ARKZ\-R7\_C207669\.pdf\)\.
Bandpass filter is based on the Chebyshev type, with component choice striking a balance between cost and performance.
This design is not built, so I can not guarantee functionality. This is also a learning experience, as I do not have much prior experience in RF. Please leave feedback if there are any mistakes/areas for improvement.
Also, LNA and the bandpass filter can snap apart. Both the LNA and bandpass filter can be used together as is, or can be used separately.
Design Drawing
schematic diagram
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Design 2A - No voltage regulator
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Design 1A - Built in voltage regulator
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PCB
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Design 1A - Built in voltage regulator
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Design 2A - No voltage regulator
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| ID | Name | Designator | Footprint | Quantity | BOM_Supplier | BOM_Supplier Part |
|---|---|---|---|---|---|---|
| 1 | JL126-50002G01 | 5V,12V,P1,P2 | CONN-TH_2P-P5.00_JL126-50002G01 | 4 | LCSC | C394556 |
| 2 | 100nF | C1,C2 | C0805 | 2 | LCSC | C49678 |
| 3 | 68pF | C3 | C0805 | 1 | LCSC | C1834 |
| 4 | 1.2nF | C4 | C0603 | 1 | LCSC | C30615 |
| 5 | 1uF | C5 | C0805 | 1 | LCSC | C28323 |
| 6 | 150pF | C8 | C0603 | 1 | LCSC | C1594 |
| 7 | 82pF | C9,C10 | C0603 | 2 | LCSC | C1683 |
| 8 | 56pF | C11,C12 | C0603 | 2 | LCSC | C39148 |
| 9 | 10uF | C23,C24,C6,C7 | C0805 | 4 | LCSC | C15850 |
| 10 | USB-AF90-C | CN3 | USB-A-TH_AF90-C | 1 | LCSC | C42494 |
| 11 | 470nH | L1 | L0603 | 1 | LCSC | C21307 |
| 12 | 47nH | L2,L3 | L0603 | 2 | LCSC | C29683 |
| 13 | 19-217/GHC-YR1S2/3T | LED2,LED1 | LED0603-R-RD | 2 | LCSC | C72043 |
| 14 | 220 | R2,R1 | R0603 | 2 | LCSC | C22962 |
| 15 | KH-SMA-KE8-G | RF1,RF2,RF3,RF4 | CONN-SMD_KH-SMA-KE8-G | 4 | LCSC | C530661 |
| 16 | ADL5536ARKZ-R7 | U1 | SOT-89-3_L4.5-W2.5-P1.50-LS4.2-BR | 1 | LCSC | C207669 |
| 17 | AMS1117-5.0 | U4,U2 | SOT-223_L6.5-W3.5-P2.30-LS7.0-BR | 2 | LCSC | C6187 |
| 18 | USB-05 | USB1 | USB-A-TH_48037-0001 | 1 | LCSC | C112454 |
| 19 | HDR-F-2.54_1x3 | H1 | HDR-F-2.54_1X3 | 1 | LCSC | C146690 |
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