Changes
/* Differences between v1 and v2 */
''[[Face Hugger|A. Stroiczek]]''
== Notes and Differences between v1 and v2 ==
Both versions are doing more or less the same (and are compatible at software side). Both versions produce linear D/A conversion (though in v1 the conversion is glitchy, v2 is more accurate). Also, in v2, the 470 Ohm POT is replaced by a normal 470 Ohm resistor plus 22uF capacitor.
The different resistor values are:
v1 1K 2K2 4K7 10K 22K 39K 82K 150K
v2 1K 2K 4K 8K 16K 32K 64K 128K
* '''Caution''' Both schematics connect GND to Pin9, which works on the CPC's (unmodified) [[Connector:Printer_port|7bit printer port]], but not on (upgraded) [[8bit Printer Ports]], so better connect GND elsewhere (eg. Pin19).
* As said above, Strobe is inverted by the CPC's printer port hardware. And, when using '''unsigned''' samples, it must be actually inverted by software. However, with '''signed''' samples, that hardware feature is just perfect, and no inversion is needed.
== Diagram (Digiblaster v1) (Andreas Stroiczek) ==
