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23 lines
1002 B
Markdown
23 lines
1002 B
Markdown
## ZX-TSid
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MOS SID sound card for ZX Spectrum edge connector (ZX-BUS).
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[](images/revC-side1.jpg?raw=true) [](images/revC-side2.jpg?raw=true)
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PCB is compatible with SID 6581 and 8580, but also contains integrated SwinSID emulator.
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SID accessible via #xxCF port, where xx - SID's register number.
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You may connect your ZX Spectrum audio output to second 3.5mm jack and it will be mixed in sound card output signal.
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NOTE: +12V/+9V voltage is strictly required for SID, your ZX Spectrum or clone must provide it on the edge connector.
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### Changelog & current status
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* Rev.A - initial release with SID, AY and Covox. [Errata](pcb/rev.A/ERRATA.txt).
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* Rev.B - abandoned. Files kept for historical reason.
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* Rev.C - removed AY and Covox. Added SwinSID emulator. PCB is vertical oriented now.
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* Rev.D - improved signal-noise ratio. Fixed read from SID chip.
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TODO:
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* Check with 8580 SID chip;
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* Further improve signal-noise ratio.
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