2 layers80 × 80 mm
Motherboard
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A blinking Christmas lights using only bipolar transistors for its logic.
136 partsMIT
2 layers45.7 × 26.7 mm
Sinitsa
john-iskra/sinitsa1Broadband RF receiver PCB layout
- Size
- 45.7 × 26.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 27
- Pads
- 111
- Tracks, vias
- 161, 34
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20210126)
- Created
- 18 Mar 2022
- Updated
- 18 Mar 2022
Overview
Sinitsa is an open-source printed circuit board by john-iskra, from the john-iskra/sinitsa repository on GitHub. It is a 2-layer board of 45.7 × 26.7 mm with 48 parts on 27 nets, routed with 161 tracks and 34 vias.
It is built around the LM358, 1N914WT and BAT17, with the KLBR4 among its other parts. Its parts include 22 resistors, 14 capacitors, 5 diodes, 2 inductors and 1 IC. It belongs with the radio and wireless boards of this library.
Main components
4
LM358
SOP-8-18V~18V 0℃~+70℃ 1.2MHz 10nA 2 24mA 3V~36V 500uA 50nA 5mV 80dB Built-in compensation SOP-8 Operational Amplifier ROHSMSKSEMIOperational Amplifier
1N914WT
SOD-523100V 150mW 1V@10mA 200mA 4ns 5uA@75V Independent SOD-523 Switching Diodes ROHSCBISwitching Diodes
BAT17
SOT-231 Independent 250nA@3V 30mA 4V 600mV@10mA SOT-23 Schottky Diodes ROHSNexperiaSchottky DiodesKLBR4
-- Lack of specifications ROHSLumberg AutomationUncategorised
README
README.mdSinitsa PCB Layout
Very broadband receiver, designed to pick up any radio signal in the immediate area. Useful for finding sources of interference.
Improved version of the "Sinitsa" modification to the Amazing Allband Receiver.
This represents the diode detector section of the original Sinitsa. Adding filters and pre-amplifiers is left to the user.
Ordering
Download the Gerber files from the gerbers/ directory. Send them to your PCB manufacturer of choice.
Parts list and assembly
The following parts need to be populated onto the board.
Once the board is populated and tested:
- Cover the RF input section with some non-conducting tape. Then put copper or aluminum foil over top. Connect the foil to ground. This will shield the quite sensitive input section from unwanted signals in the area (cell phones, etc).
- Use epoxy to secure the potentiometers against physical shocks. Their pins are fairly fragile.
- Cover the whole board in heat shrink tubing. Transparent heat shrink is recommended so the power LED is visible.
| Ref | Qnty | Value | Cmp name | Footprint | Description | Vendor |
|---|---|---|---|---|---|---|
| BAT1, | 1 | Battery Clip | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | 9V battery clip | |
| C1, | 1 | 100pF | C | Capacitor_SMD:C_0402_1005Metric | Unpolarized capacitor | |
| C2, C4, C5, C8, C9, C10, C11, | 7 | 1nF | C | Capacitor_SMD:C_0402_1005Metric | Unpolarized capacitor | |
| C3, C12, C100, | 3 | 100nF | C | Capacitor_SMD:C_0402_1005Metric | Unpolarized capacitor | |
| C6, | 1 | 47nF | C | Capacitor_SMD:C_0603_1608Metric | Unpolarized capacitor | |
| C7, | 1 | 220uF | C_Polarized-Device-sinitsa-rescue | Capacitor_SMD:CP_Elec_6.3x7.7 | ||
| C13, | 1 | 1uF | C | Capacitor_SMD:C_0402_1005Metric | Unpolarized capacitor | |
| D1, | 1 | BAT17 | D_Schottky | Diode_SMD:D_SOT-23_ANK | Schottky diode | |
| D2, D3, D4, | 3 | 1N914WT | 1N914WT | Diode_SMD:D_SOD-523 | 75V 0.15A Fast switching Diode, SOD-523 | |
| IC1, | 1 | LM358 | LM358 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 | |
| J2, | 1 | KLBR_4 | KLBR_4-LUMBERG_3.5-sinitsa-rescue | Lumberg_3.5:Lumberg-KLBR_4-0 | ||
| L1, | 1 | 10uH | L | Inductor_SMD:L_0805_2012Metric | Inductor | |
| L2, | 1 | 39n | L | Inductor_SMD:L_0402_1005Metric | Inductor | |
| LED1, | 1 | RED LED | LED | LED_SMD:LED_0805_2012Metric | Light emitting diode | |
| R1, R8, | 2 | 10K | R | Resistor_SMD:R_0402_1005Metric | Resistor | |
| R2, R3, | 2 | 10M | R | Resistor_SMD:R_0402_1005Metric | Resistor | |
| R4, R11, R12, R19, | 4 | 100K | R | Resistor_SMD:R_0402_1005Metric | Resistor | |
| R5, | 1 | 100 | R | Resistor_SMD:R_0402_1005Metric | Resistor | |
| R6, R9, R22, | 3 | 220K | R | Resistor_SMD:R_0402_1005Metric | Resistor | |
| R7, | 1 | 10 | R | Resistor_SMD:R_0402_1005Metric | Resistor | |
| R10, | 1 | 3k3 | R | Resistor_SMD:R_0402_1005Metric | Resistor | |
| R13, | 1 | 200K | R | Resistor_SMD:R_0402_1005Metric | Resistor | |
| R14, | 1 | 470K | R | Resistor_SMD:R_0402_1005Metric | Resistor | |
| R15, R16, R17, R21, | 4 | 5.1K | R | Resistor_SMD:R_0402_1005Metric | Resistor | |
| R18, | 1 | 10K | R_Potentiometer-Device-sinitsa-rescue | Potentiometer_THT:Potentiometer_Alps_RK097_Single_Horizontal | ||
| R20, | 1 | 100K | R_Potentiometer-Device-sinitsa-rescue | Potentiometer_THT:Potentiometer_Alps_RK097_Single_Horizontal | ||
| T1, | 1 | MMST2222A-7-F | BC847W | Package_TO_SOT_SMD:SOT-323_SC-70 | 0.1A Ic, 45V Vce, NPN Transistor, SOT-323 | |
| X1, | 1 | AMPHENOL 132289 | Conn_Coaxial | Connector_Coaxial:SMA_Amphenol_132289_EdgeMount | coaxial connector |
Parts
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 1nF | Capacitor_SMD:C_0402_1005Metric | C2, C4, C5, C8, C9, C10, C11 |
| 4 | 100K | Resistor_SMD:R_0402_1005Metric | R4, R11, R12, R19 |
| 4 | 5.1K | Resistor_SMD:R_0402_1005Metric | R15, R16, R17, R21 |
| 3 | 100nF | Capacitor_SMD:C_0402_1005Metric | C3, C12, C100 |
| 3 | 1N914WT | Diode_SMD:D_SOD-523 | D2, D3, D4 |
| 3 | 220K | Resistor_SMD:R_0402_1005Metric | R6, R9, R22 |
| 2 | 10K | Resistor_SMD:R_0402_1005Metric | R1, R8 |
| 2 | 10M | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 1 | 10 | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | 100K | Potentiometer_THT:Potentiometer_Alps_RK097_Single_Horizontal | R20 |
| 1 | 100pF | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | 10K | Potentiometer_THT:Potentiometer_Alps_RK097_Single_Horizontal | R18 |
| 1 | 10uH | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric | C13 |
| 1 | 200K | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 220uF | Capacitor_SMD:CP_Elec_6.3x7.7 | C7 |
| 1 | 39n | Inductor_SMD:L_0402_1005Metric | L2 |
| 1 | 3k3 | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 470K | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 47nF | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | AMPHENOL 132289 | Connector_Coaxial:SMA_Amphenol_132289_EdgeMount | X1 |
| 1 | BAT17 | Diode_SMD:D_SOT-23_ANK | D1 |
| 1 | Battery Clip | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BAT1 |
| 1 | KLBR_4 | Lumberg_3.5:Lumberg-KLBR_4-0 | J2 |
| 1 | LM358 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | IC1 |
| 1 | MMST2222A-7-F | Package_TO_SOT_SMD:SOT-323_SC-70 | T1 |
| 1 | RED LED | LED_SMD:LED_0805_2012Metric | LED1 |
Questions
How big is the Sinitsa PCB?
It measures 45.7 × 26.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Sinitsa use?
48 parts, built around the LM358, 1N914WT, BAT17 and KLBR4. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Sinitsa KiCad files?
From the john-iskra/sinitsa repository on GitHub, at the commit this page was made from: the board is sinitsa.kicad_pcb and its schematic sinitsa.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sinitsa design in my own project?
Its repository states no licence, so its author keeps all rights: ask john-iskra before reusing the design.
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