2 layers213.5 × 128.5 mm
Analog via
starlingcode/analog-via
Designs for an all-analog variant of the VIA meta crossfader
708 parts
4 layers213.5 × 128.5 mm
Analog via
starlingcode/analog-viaDesigns for an all-analog variant of the VIA meta crossfader
- Size
- 213.5 × 128.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 767
- Nets
- 199
- Pads
- 1,285
- Tracks, vias
- 1,445, 283
- Pours
- 11
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 Nov 2024
- Updated
- 13 Aug 2025
Overview
Analog via is an open-source printed circuit board by starlingcode, from the starlingcode/analog-via repository on GitHub. It is a 4-layer board of 213.5 × 128.5 mm with 767 parts on 199 nets, routed with 1,445 tracks and 283 vias.
It is built around the OPA1678ID, TMUX4053PW and 74HC14, with the LM311, 74AHC1G32GW and 74AHC1G86SE among its other parts. Its parts include 87 resistors, 61 capacitors, 45 connectors, 22 ICs and 8 diodes.
Main components
9
OPA1678ID
SOIC-8-150mil-18V~-2.25V、2.25V~18V -40℃~+85℃ 10pA 10pA 110dB 16MHz 2 2mA 2uV/℃ 4.5V~36V 4.5nV/√Hz@1kHz 500uV 50mA 9V/us Built-in compensation、ESD protection Rail-to-rail output SOIC-8-150mil Operational Amplifier ROHSTexas InstrumentsAudio Amplifiers
TMUX4053PW
TSSOP-16-12V~12V、5V~24V -55℃~+125℃ 1.05kΩ 140ns 190ns 20ns 2:1 3 5pF 850MHz TSSOP-16 Analog Switches, Multiplexers ROHSTexas InstrumentsAnalog Switches, Multiplexers
74HC14
SOP-14-40℃~+85℃ 1.9V、3.98V、4.4V、5.48V、5.9V 100mV、260mV、260mV 20uA 25ns@4.5V,50pF 2V~6V 6 74HC Noise suppression function Schmitt trigger SOP-14 Inverters ROHSJSMSEMIInverters
LM311
SOP-80℃~+70℃ 1 1.7nA 2.4mA 200ns 2mV 36V 45nA 5V~30V TTL、CMOS ±15V SOP-8 Comparators ROHSGcoreComparators
74AHC1G32GW
SOT-353-40℃~+125℃ 1 1.5V~3.85V 1.9V、2.9V、3.94V、4.4V 100mV、100mV、100mV、550mV 1uA 2 2V~5.5V 500mV~1.65V 7.5ns@5V,50pF 74AHC Series 8mA 8mA OR Gate Overvoltage-tolerant input SOT-353 Logic Gates ROHSNexperiaLogic Gates74AHC1G86SE
SOT-353-40℃~+125℃ 1 1.5V~3.85V 1uA 2V~5.5V 500mV~1.65V 74AHC Series 8.8ns@5V,50pF 8mA 8mA XOR Gate SOT-353 Logic Gates ROHSDiodes IncorporatedLogic Gates
74HC237
SOP-16-40℃~+105℃ 19ns 2V~6V 8 8:1 SOP-16 Analog Switches, Multiplexers ROHSWuxi I-core ElecAnalog Switches, Multiplexers74HC74D
SOIC-14-40℃~+125℃ 1 15ns 2 2V~6V 3.5pF 37ns@6V,50pF 3ns、3ns、3ns 40uA 5.2mA 5.2mA 74HC Series 82MHz Asynchronous Complementary D-Type Rising Edge Set and Reset SOIC-14 Flip Flops ROHSNexperiaFlip Flops
AMS1117-5.0
SOT-223-40℃~+125℃ 1 1.3V 15V 1A 5V 60dB Fixed Positive Short Circuit Protection、Thermal shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdanalog-via
Designs for an all-analog variant of the VIA meta crossfader/envelope generator/oscillator
Parts
767| Qty | Value | Footprint | References |
|---|---|---|---|
| 40 | 100n | Capacitor_SMD:C_0805_2012Metric | C1, C11, C13, C15, C18, C19, C21, C22, C23, C24, C27, C28, C30, C31, C32, C33 +24 |
| 25 | 100k | Resistor_SMD:R_0805_2012Metric | R3, R4, R18, R34, R42, R46, R51, R57, R58, R59, R61, R62, R102, R104, R107, R110 +9 |
| 12 | GND | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J29, J34, J35, J43, J46, J47, J55, J56, J57, J58, J59, J61 |
| 8 | 1200p | Capacitor_SMD:C_0805_2012Metric | C2, C4, C6, C10, C12, C17, C20, C52 |
| 8 | 220 | Resistor_SMD:R_0805_2012Metric | R9, R31, R32, R37, R39, R53, R56, R91 |
| 7 | 10k | Resistor_SMD:R_0805_2012Metric | R36, R43, R44, R72, R73, R83, R103 |
| 7 | 1k | Resistor_SMD:R_0805_2012Metric | R5, R8, R10, R98, R99, R100, R101 |
| 6 | 33k | Resistor_SMD:R_0805_2012Metric | R30, R35, R47, R49, R71, R90 |
| 6 | Jumper_2_Open | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1, JP2, JP3, JP4, JP5, JP6 |
| 6 | OPA1678 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4, U7, U11, U14, U33, U35 |
| 5 | 1M | Resistor_SMD:R_0805_2012Metric | R86, R88, R89, R105, R108 |
| 4 | , , , | ||
| 4 | 100p | Capacitor_SMD:C_0805_2012Metric | C3, C8, C16, C47 |
| 4 | 4.7k | Resistor_SMD:R_0805_2012Metric | R38, R54, R87, R106 |
| 4 | LED | LED_SMD:LED_0805_2012Metric | D5, D6, D7, D8 |
| 4 | TMUX4053 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U3, U6, U16, U19 |
| 3 | 1N5819 | Diode_SMD:D_SOD-123 | D1, D2, D3 |
| 3 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J13, J30, J31 |
| 2 | +12V | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J48, J52 |
| 2 | +5V | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J51, J54 |
| 2 | -12V | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J49, J53 |
| 2 | 1.2n | Capacitor_SMD:C_0805_2012Metric | C50, C51 |
| 2 | 100k 1% | Resistor_SMD:R_0805_2012Metric | R20, R21 |
| 2 | 10k | Potentiometer_THT:Potentiometer_TT_P0915N | RV2, RV3 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C25, C26 |
| 2 | 150k | Resistor_SMD:R_0805_2012Metric | R19, R93 |
| 2 | 200k | Resistor_SMD:R_0805_2012Metric | R82, R85 |
| 2 | 22u | Capacitor_SMD:C_0805_2012Metric | C42, C43 |
| 2 | 300k | Resistor_SMD:R_0805_2012Metric | R95, R96 |
| 2 | 50k | Resistor_SMD:R_0805_2012Metric | R52, R55 |
| 2 | 74HC14 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U39, U40 |
| 2 | 845 | Resistor_SMD:R_0805_2012Metric | R1, R92 |
| 2 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J18, J39 |
| 2 | Conn_02x04_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J12, J32 |
| 2 | DNP | Resistor_SMD:R_0805_2012Metric | R40, R41 |
| 2 | LM311 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U12, U13 |
| 2 | SSI2164 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | IC1, IC2 |
| 1 | 0R | Resistor_SMD:R_0805_2012Metric | R74 |
| 1 | 1 | Resistor_SMD:R_0805_2012Metric | R109 |
| 1 | 1.69M | Resistor_SMD:R_0805_2012Metric | R24 |
| 1 | 100 | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 100k | Potentiometer_THT:Potentiometer_TT_P0915N | RV4 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric | C55 |
| 1 | 10M | Resistor_SMD:R_0805_2012Metric | R69 |
| 1 | 10k | Potentiometer_SMD:Potentiometer_Bourns_TC33X_Vertical | RV1 |
| 1 | 1K | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | 1V/OCT | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J50 |
| 1 | 1n4148 | Diode_SMD:D_SOD-123 | D4 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C53 |
| 1 | 200 | Resistor_SMD:R_0805_2012Metric | R25 |
| 1 | 2164_CV | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | 340 | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | 47k | Resistor_SMD:R_0805_2012Metric | R26 |
| 1 | 500K | Resistor_SMD:R_0805_2012Metric | R33 |
| 1 | 5VREF | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J2 |
| 1 | 600k | Resistor_SMD:R_0805_2012Metric | R97 |
| 1 | 74AHC1G32 | Package_TO_SOT_SMD:SOT-23-5 | U22 |
| 1 | 74AHC1G86 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U30 |
| 1 | 74HC237 | Package_SO:SOIC-16_4.55x10.3mm_P1.27mm | U42 |
| 1 | 74HC74 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | 74LS08 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U10 |
| 1 | AMS1117-5.0 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U18 |
| 1 | AT_TARGET | Connector_PinHeader_2.00mm:PinHeader_1x01_P2.00mm_Vertical | J68 |
| 1 | BIT0 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J66 |
| 1 | BIT1 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J63 |
| 1 | BOUNDS | Connector_PinHeader_2.00mm:PinHeader_1x01_P2.00mm_Vertical | J33 |
| 1 | COMP_CTL_A | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | J15 |
| 1 | COMP_CTL_B | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | J20 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J65 |
| 1 | Conn_02x02_Counter_Clockwise | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J38 |
| 1 | DECAY_TRIG | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J70 |
| 1 | DIRECTION | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J9 |
| 1 | DIR_CHANGE | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J71 |
| 1 | DNP | Capacitor_SMD:C_0805_2012Metric | C63 |
| 1 | ENABLE_DECAY | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J67 |
| 1 | EOA | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J69 |
| 1 | EOC | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J6 |
| 1 | EXPO_IN | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J3 |
| 1 | FALL | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J27 |
| 1 | FALL_SUM | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J36 |
The 237 most common of 767 parts.
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Questions
How big is the Analog via PCB?
It measures 213.5 × 128.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Analog via use?
767 parts, built around the OPA1678ID, TMUX4053PW, 74HC14 and LM311. 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 Analog via KiCad files?
From the starlingcode/analog-via repository on GitHub, at the commit this page was made from: the board is analog-via.kicad_pcb and its schematic analog-via-backups/analog-via.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Analog via design in my own project?
Its repository states no licence, so its author keeps all rights: ask starlingcode before reusing the design.