2 layers114 × 89 mm
2 layers100 × 90 mm
Ayn dc
afiskon/ayn-dc5DC QRP CW transceiver
- Size
- 100 × 90 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 226
- Nets
- 166
- Pads
- 652
- Tracks, vias
- 1,065, 191
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 3 Dec 2022
- Updated
- 20 Apr 2026
Overview
Ayn dc is an open-source printed circuit board by afiskon, from the afiskon/ayn-dc repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 90 mm with 226 parts on 166 nets, routed with 1,065 tracks and 191 vias.
It is built around the NE5532, LM386 and 24LC64(LX), with the 74AC74M, FST3253M and L7805 among its other parts. Its parts include 78 capacitors, 70 resistors, 14 diodes, 11 ICs and 11 transistors. It belongs with the radio and wireless boards and the STM32 boards of this library.
Main components
12
NE5532
SOP-8-22V~22V 0℃~+70℃ 100dB 10nA 14mA 2 40V/us 42mA 4mV 800nA 8nV/√Hz@30Hz Built-in compensation SOP-8 Operational Amplifier ROHSSungineOperational AmplifierLM386
SOP-80.2% 0℃~+70℃ 4V~12V 4mA 50dB 700mWx1@8Ω Analog voltage gain SOP-8 Audio Amplifiers ROHSGcoreAudio Power OpAmps24LC64(LX)
SOP-8-40℃~+85℃ 1,000,000 cycles 1.8V~5.5V 100 Years 1MHz 5ms 64Kbit Hardware write protection function、Noise suppression function I2C SOP-8 EEPROM ROHSlingxingicEEPROM
74AC74M
SOIC14Dual D-Type Flip Flop with Preset and ClearSTMicroelectronicsUncategorised
FST3253M
SOIC-16-40℃~+85℃ 4V~5.5V Multiplexer/Demultiplexer Single Supply SOIC-16 Signal Switches, Multiplexers, Decoders ROHSonsemiSignal Switches, Multiplexers, Decoders
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
G6K-2F-Y-5V
SMD,10x6.5mm-40℃~+70℃ 100mW 100mΩ 1A 237Ω 300mA@125VAC、1A@30VDC 3ms 3ms 5V 60V@DC、125V@AC Silver+gold alloy Two groups of conversions: 2C(Double-pole double-throw conversion) SMD,10x6.5mm Signal Relays ROHSOmronSignal Relays
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)MMBF170
SOT-23-55℃~+150℃ 1 N-channel 11pF 2.1V 2.2Ω@10V 200mA 22pF 2pF 300mW 60V SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETsMMBT3906
SOT-23-55℃~+150℃ 1 PNP 100 100nA 200mA 200mW 300MHz 300mV 40V 5V PNP SOT-23 Bipolar (BJT) ROHSTWGMCBipolar (BJT)
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdAYN/DC
QRP CW Transceiver
- Covers 40, 30, 20 and 17 meters
- Easily modifiable for other 4 bands
- DC receiver with sideband suppression
- Simple but effective AGC
- Supports RIT and XIT
- 10-30 WPM Elekey-B type keyer + straight key mode
- Keyer settings are saved in EEPROM
- ~5W class C power amplifier
- Has a VCC indicator and a SWR meter
- PCB is designed to fit into Hammond 1590BB enclosure
- The project is 100% open-source
Links:
- Article (in Russian): https://eax.me/2023/2023-01-16-ayn-dc-transceiver.html
- Demo: https://www.youtube.com/watch?v=9x_RN68QJhk
Parts
226| Qty | Value | Footprint | References |
|---|---|---|---|
| 31 | 0.1u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C4, C10, C11, C12, C14, C15, C16, C17, C19, C20, C22, C25, C28, C30, C37 +15 |
| 11 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D2, D3, D6, D7, D8, D9, D10, D11, D12, D13 |
| 10 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R9, R11, R12, R14, R18, R34, R39, R42, R44, R48 |
| 9 | 3.3K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R21, R22, R23, R24, R29, R30, R31, R32, R57 |
| 9 | G6K-2F-Y | Relay_SMD:Relay_DPDT_Omron_G6K-2F-Y | K1, K2, K3, K4, K5, K6, K7, K8, K9 |
| 8 | 1-30p | My_Library:C_Trim_THD_L7.0mm_W6.5mm_P5.00mm | C62, C63, C67, C68, C72, C73, C77, C78 |
| 8 | 4.7K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2, R15, R16, R54, R66, R67, R68, R69 |
| 8 | T37-6 | Package_DIP:DIP-4_W7.62mm | T4, T5, T6, T7, T8, T9, T10, T11 |
| 7 | 22 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R6, R17, R25, R33, R43, R49, R55 |
| 7 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1, Q5, Q7, Q8, Q9, Q10, Q11 |
| 6 | 1K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R20, R28, R53, R59, R71, R72 |
| 5 | 0.01u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C13, C18, C21, C58, C59 |
| 5 | NE5532 | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U3, U6, U7, U8, U9 |
| 4 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R62, R63, R64, R65 |
| 4 | 300 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R7, R8, R10, R13 |
| 4 | Conn_Coaxial | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J8, J9, J11, J12 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3mm_Pad | H1, H2, H3, H4 |
| 3 | 0.047u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C23, C31, C46 |
| 3 | 0.47u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3, C6, C24 |
| 3 | 1-10p | My_Library:C_Trim_THD_L7.0mm_W6.5mm_P5.00mm | C65, C70, C75 |
| 3 | 1000p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C26, C27, C36 |
| 3 | 100p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C29, C66, C69 |
| 3 | 2200p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C33, C38, C39 |
| 3 | FT37-43 | Package_DIP:DIP-4_W7.62mm | T1, T2, T3 |
| 2 | 0.033u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C32, C40 |
| 2 | 1000u | Inductor_THT:L_Axial_L6.6mm_D2.7mm_P10.16mm_Horizontal_Vishay_IM-2 | L1, L2 |
| 2 | 10K | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV4, RV5 |
| 2 | 10u | Capacitor_SMD:CP_Elec_4x5.4 | C35, C47 |
| 2 | 150p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C61, C64 |
| 2 | 15K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R41 |
| 2 | 1N34 / D311 | Diode_THT:D_DO-41_SOD81_P3.81mm_Vertical_AnodeUp | D4, D5 |
| 2 | 33K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R35, R36 |
| 2 | 36K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R46, R47 |
| 2 | 47K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R37, R38 |
| 2 | 47p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C71, C74 |
| 2 | 50K | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV1, RV2 |
| 2 | 68p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C76, C79 |
| 2 | 8.2K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R19, R40 |
| 2 | MMBF170 | Package_TO_SOT_SMD:SOT-23 | Q2, Q3 |
| 1 | 1-20p | My_Library:C_Trim_THD_L7.0mm_W6.5mm_P5.00mm | C60 |
| 1 | 1.3K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R58 |
| 1 | 10 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R50 |
| 1 | 100K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R70 |
| 1 | 1Meg | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R51 |
| 1 | 1u | Capacitor_SMD:CP_Elec_4x5.4 | C48 |
| 1 | 2.2K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R56 |
| 1 | 2.7K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3 |
| 1 | 220u | Capacitor_SMD:CP_Elec_8x10.5 | C52 |
| 1 | 24LC64 | Package_SO:SO-8_5.3x6.2mm_P1.27mm | U2 |
| 1 | 4.3K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R27 |
| 1 | 4.7u | Capacitor_SMD:CP_Elec_4x5.4 | C34 |
| 1 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R52 |
| 1 | 470u | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | C2 |
| 1 | 5.1K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R26 |
| 1 | 500 | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV3 |
| 1 | 6 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R61 |
| 1 | 68 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R60 |
| 1 | 6800p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C41 |
| 1 | 74AC74 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U5 |
| 1 | 750K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R45 |
| 1 | BluePill_Left | Connector_PinSocket_2.54mm:PinSocket_1x20_P2.54mm_Vertical | J3 |
| 1 | BluePill_Right | Connector_PinSocket_2.54mm:PinSocket_1x20_P2.54mm_Vertical | J4 |
| 1 | Conn_01x02 | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J6 |
| 1 | Conn_01x03 | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J5 |
| 1 | FST3253 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U4 |
| 1 | L7805 | Package_TO_SOT_SMD:TO-263-2 | U11 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220-3_Vertical | U1 |
| 1 | LM386 | Package_SO:SO-8_5.3x6.2mm_P1.27mm | U10 |
| 1 | Logo_Open_Hardware_Small | Symbol:OSHW-Logo2_9.8x8mm_SilkScreen | SYM1 |
| 1 | MMBT3906 | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | RD15HVF1 | Package_TO_SOT_THT:TO-220-3_Vertical | Q6 |
| 1 | SS14 | Diode_SMD:D_SMA_Handsoldering | D14 |
| 1 | SYM_Radio_Waves_Large | Symbol:KiCad-Logo_5mm_SilkScreen | SYM2 |
| 1 | Si5351_Module | Connector_PinSocket_2.54mm:PinSocket_1x07_P2.54mm_Vertical | J2 |
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Questions
How big is the Ayn dc PCB?
It measures 100 × 90 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Ayn dc use?
226 parts, built around the NE5532, LM386, 24LC64(LX) and 74AC74M. 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 Ayn dc KiCad files?
From the afiskon/ayn-dc repository on GitHub, at the commit this page was made from: the board is kicad-project/ayn-dc.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ayn dc design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).