[R-390] R502 and R503

[David Wise]

> From: Scott, Barry (Clyde B) [mailto:cbscott@ingr.com]
> 
> I notice in the Y2k manual that the values for R502 and R503 
> apparently were selected for an optimal value within an 
> appropriate range.  Can someone tell me what factors 
> control(led) the selection of these values.

Different crystals have different activity levels,
so you pick the resistor to trim the circuit Q,
i.e., bandwidth.  If your 100Hz and 1kHz bandwidths
are on-spec, the resistors are right.

Regards,
Dave Wise