VC delay module ideas?

[Fraser, Colin J]

> -----Original Message-----
> From: Haible Juergen [mailto:Juergen.Haible at nbgm.siemens.de]
> Sent: 30 October 1998 12:01
> To: DIY
> Subject: AW: VC delay module ideas?
> 
> 
> It's easy to build a VC clock for BBD lines. Use a 4046 as
> VCO, and a 4013 to get complementary clock pulses.
> You might even use one of the 4046's internal PD's to
> simply invert the output signal. If you want to drive long lines,
> add buffer stages (4050). If you need expo tracking, build 
> an expo VCO and a 4013.

The design I have has a very small delay between the end of one pulse and
the start of the complementary pulse - this is supposed to be required for
the correct operation of the BBD, ie the switches before and after each
'bucket' must not be on at the same time.

Is this not the case ?


Colin f