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AY-3-8912 Emulator

1 year ago 1251
  • Description
  • Documents
  • BOM
  • Attachments
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Description

The replacement board for the famous AY-3-8910/AY-3-8912/YM2149F sound chip of the ZX-Spectrum 128 and others. Based on the schematic and firmware from https://www.avray.ru, https://zx-pk.ru/threads/10510-emulyator-ay-8910-na-atmega.html and https://github.com/andykarpov/turbosound28p resources. More info on https://github.com/Yevgeniy-Olexandrenko/avr-ay-board.

Documents

Schematic-v2.0

AY-3-8912-Emulator-v2.0

BOM

ID Name Designator Footprint Quantity
1 18p C1,C2 C0603 2
2 100n C3,C4 C0603 2
3 2.2n C5,C6,C7 C0603 3
4 CONN_01X07 H1A,H1B,H1C,H1D HDR-M-2.54_1X7 4
5 ICSP H2 HDR-M-2.54_2X3 1
6 SERIAL H3 HDR-M-2.54_1X4 1
7 I2C H4 HDR-M-2.54_1X4 1
8 AY/YM J1 JMP-2-NO 1
9 PIO/I2C J2 JMP-2-NO 1
10 DATA LED1 LED0603_RED 1
11 PWR LED2 LED0603_GREEN 1
12 680R R1,R2 R0603 2
13 3.6k R3,R4,R5 R0603 3
14 ATmega48 U1 TQFP-32_L7.0-W7.0-P0.80-LS9.0-BL 1
15 27MHz X1 OSC-SMD_4P-L3.2-W2.5-BL 1

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