At 04:32 PM 12/1/97 -0800, Clay Cowgill wrote:
[...]
>
>>I just looked at the schematics, and it turns out the design that used
>>DAC80's used a 4016 analog switch instead of the National LF part.
>>I'll have to trace out the other design that used National DAC1221's
>>and an LF switch.
>
>Anybody know why Atari got away from the 4016 and went with the LF13201 in
>the AVG games? My guess was that the series resistance of the 4016 was too
>high and gave them problems with zero'ing the caps in the integrator...
I think it's the VCC supply range. It's limited to +12V on the 4016, where
as the the LF 13xxx can span +30V (-15,+15V)
-Scott
Scott Swazey QUALCOMM Incorporated Work: (619) 657-2419
mailto: V-209H Pager:(619) 683-5210
