[sdiy] Re: [AH] If I'd consider making a PCB for a flanger ...

[Seb Francis]

JH. wrote:
>> The 3102 overlaps
>> the clocks by about 200nS or so but I'm not sure of the effect of this or
>> how important it is.
>>     
>
> If it works in a similar way as other BBD drivers I've seen, it works with 
> negative logic, and the "overlap" is quite the opposite: a *gap*, to ensure 
> that even with slighly lagged clock edges (from capacitive loading), the 
> complementary transistors trees inside the BBD are never gated at the same 
> time.
>   

This is why the extra buffering is important for higher frequencies 
otherwise this overlap can get lost in the lag.

Seb