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AS3397 proto DIP

PhysicsDptAngers·polyUAnalog·hardware/voice/mono - through-hole/AS3397_proto_DIP.kicad_pcb

AS3397 proto DIP PCB layout, top view — open source RP2040/RP2350 board by PhysicsDptAngers

About the AS3397 proto DIP PCB

AS3397 proto DIP is an open source RP2040/RP2350 PCB design by PhysicsDptAngers, published on GitHub under the MIT license. It is a 2-layer board measuring 167.6 × 97.5 mm, with 138 components from 69 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the TC7662, LM7812, TS922, 6N138 and TL072. By type, the board carries 52 resistors, 38 capacitors, 22 test points, 11 ICs, 6 diodes and 4 transistors.

It belongs with the audio designs in this gallery.

From the project

Open source, analog and polyphonic synthesizer

The simplest version to assemble and arguably the best starting point. This is a standalone analog voice module that does not require a conductor board to generate sound. Additionaly, the board is large and use trhough-hole component (except for the as3397 chip). It also includes a dedicated MIDI input socket and power circuitry, allowing you to simply connect a MIDI cable and a +12V power supply to get a fully functional monophonic analog synthesizer!

Main components on the AS3397 proto DIP

TC7662LM7812PicoTS9226N138TL0724050LM7805

AS3397 proto DIP bill of materials (BOM)

138 components, 69 distinct parts.

QtyPartRefs
1
TC7662
U1
1
LM7812
U2
1
Pico
U3
4
TS922
U4, U8, U9, U11
1
6N138
U5
1
TL072
U6
1
4050
U7
1
LM7805
U10
4
BS170
Q2, Q3, Q4, Q5
1
+15V
J1
1
MIDI IN
J2
1
OUTPUT
J3
1
I2C
J4
1
AS3397
AS1
1
CTA
TP1
1
CTB
TP2
1
GND
TP3
1
PAN
TP4
1
MOD
TP5
1
PWA
TP6
Show 49 more
QtyPartRefs
1
RES
TP7
1
PWB
TP8
1
GAIN
TP9
1
FREQ
TP10
1
BAL
TP11
1
WSEL
TP12
1
DSO
TP13
1
WFA
TP14
1
WFB
TP15
1
FREQA
TP16
1
FREQB
TP17
1
OUTL
TP18
1
OUTR
TP19
1
-5V
TP20
1
+12V
TP21
1
+5V
TP22
4
1N4148
D1, D2, D5, D6
2
BAT48
D3, D4
1
100uF
C1
3
10uF
C2, C5, C11
2
1uF
C3, C37
1
2.2nF
C4
2
3.3nF
C6, C10
8
22nF
C7, C8, C21, C22, C24, C26, C36, C40
12
100nF
C9, C12, C28, C29, C30, C31, C32, C33 +4
3
33nF
C13, C14, C15
1
470pF
C16
2
1.5nF
C17, C18
2
120pF
C19, C20
1
1uF
C27
3
3k9
R1, R3, R9
3
1M
R2, R4, R10
15
10k
R5, R6, R25, R26, R28, R30, R42, R43 +7
3
4k7
R7, R8, R19
2
422k
R11, R12
1
220
R13
1
68k
R14
4
33k
R15, R18, R35, R36
1
4.7k
R16
1
47k
R17
4
3.6k
R20, R21, R33, R34
2
470
R22, R41
2
50K
R23, R24
2
1.2k
R31, R32
3
1k
R37, R50, R54
1
22k
R38
1
28k
R39
1
680
R40
2
6.8k
R49, R53

AS3397 proto DIP design files

The KiCad project lives in the PhysicsDptAngers/polyUAnalog repository on GitHub; these links point at the commit this page was built from.

AS3397 proto DIP: common questions

What microcontroller does the AS3397 proto DIP use?

The AS3397 proto DIP is built around the Pico, from the RP2040/RP2350 family.

How big is the AS3397 proto DIP PCB?

The AS3397 proto DIP measures 167.6 × 97.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the AS3397 proto DIP?

138 components, from 69 distinct parts. The full bill of materials is listed on this page.

Where can I download the AS3397 proto DIP design files?

From the PhysicsDptAngers/polyUAnalog repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the AS3397 proto DIP design in my own project?

Yes, under the terms of its MIT license, which PhysicsDptAngers chose for the repository.

Can I test firmware for the AS3397 proto DIP without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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