polykit-x-mainboard
polykit
Schematics and PCB layout for a mainboard for an 8 voice polyphonic synthesizer
Components (28)
| Reference | Value | Description |
|---|---|---|
| U1 | Mega2560Pro_Mini | |
| U2,U5,U12,U15 | CD4051B | |
| U3,U4,U6-U8,U13,U14,U16,U17,U19 | TL074 | |
| U9 | LM4040AIM3-5.0 | |
| U10 | AD5676ARUZ | |
| U11 | TL072 | |
| U18 | L7905 | |
| U20 | 6N137 | |
| C1,C2,C11-C18,C23-C25,C31-C34,C43-C47,C56-C59,C64,C65 | 100n | |
| C3-C10,C19-C22,C26-C29,C35-C42,C48-C55 | 10n | |
| C30 | 10u | |
| C60-C63 | 100u | |
| D1 | 1N4148WS | |
| J1 | POWER | |
| J2 | OUTPUT | |
| J3 | MIDI IN | |
| J4 | MIDI_OUT | |
| J5 | EXTERNAL_IN | |
| J6 | I2C_1 | |
| J7 | I2C_2 | |
| J8 | SPI | |
| J9 | EXT_ANALOG | |
| J10 | EXT_DIGITAL | |
| R1-R7,R13-R41 | 100k | |
| R8,R42,R43 | 1k | |
| R9-R12,R47 | 10k | |
| R44-R46 | 220R | |
| VOICE1-VOICE8 | VOICE |