Archive of the former Yahoo!Groups mailing list: MOTM

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [motm] BBD delays

From: "jhaible" <jhaible@...>
Date: 2000-04-22

> Unfortunately, I don't quite understand this safety gap. Can you explain
> further...?

The two clock pulses for BBDs should not ovelap. Even when you make
sure they won't overlap in your clock circuit, they might as soon as you
the BBD. That's because of the BBD's input capacitance and the limited
current output of the clock circuit. Acts like a slew limiter.
You have to insert a "gap" between the two clock pulses, a small time when
none of them is on. The better your clock driver, the smaller the required