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low power divide by 5

G
glenlist
Fri, Jul 3, 2020 8:18 AM

Bravo Microchip for extending the ECL lines.

I use quite a few of them like  SY100EL33L (div 4 ).  I needed a 400 MHz

100 MHz divider for driving the CPU clock from the ADC clock.  ECL.

yeah overkill.

(74)AC doesnt quite make it. Wow- newish 74AUC will go to 300 MHz at
1.8V. ......

Anyway the SY100EL33L  is cheap. and 3.3V. ..even if the package is
giant. (SOIC8) .

But I like the Wenzel  skip divider- now that is cool- Thanks BRUCE for
posting that.  (http://www.wenzel.com/wp-content/uploads/dividers.pdf)

glen

On 03/07/2020 11:54, ed breya wrote:

Jim,

Bravo Microchip for extending the ECL lines. I use quite a few of them like  SY100EL33L (div 4 ).  I needed a 400 MHz >> 100 MHz divider for driving the CPU clock from the ADC clock.  ECL. yeah overkill. (74)AC doesnt quite make it. Wow- newish 74AUC will go to 300 MHz at 1.8V. ...... Anyway the SY100EL33L  is cheap. and 3.3V. ..even if the package is giant. (SOIC8) . But I like the Wenzel  skip divider- now that is cool- Thanks BRUCE for posting that.  (http://www.wenzel.com/wp-content/uploads/dividers.pdf) glen On 03/07/2020 11:54, ed breya wrote: > Jim,
BG
Bruce Griffiths
Fri, Jul 3, 2020 8:45 AM

When simulating the Wenzel divider its important to include the input protection diodes or the input signal at the D input of the FF becomes unrealistically large even with a finite Q inductor.

Bruce

On 03 July 2020 at 20:18 glenlist glenlist@cortexrf.com.au wrote:

Bravo Microchip for extending the ECL lines.

I use quite a few of them like  SY100EL33L (div 4 ).  I needed a 400 MHz

100 MHz divider for driving the CPU clock from the ADC clock.  ECL.

yeah overkill.

(74)AC doesnt quite make it. Wow- newish 74AUC will go to 300 MHz at
1.8V. ......

Anyway the SY100EL33L  is cheap. and 3.3V. ..even if the package is
giant. (SOIC8) .

But I like the Wenzel  skip divider- now that is cool- Thanks BRUCE for
posting that.  (http://www.wenzel.com/wp-content/uploads/dividers.pdf)

glen

On 03/07/2020 11:54, ed breya wrote:

Jim,


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When simulating the Wenzel divider its important to include the input protection diodes or the input signal at the D input of the FF becomes unrealistically large even with a finite Q inductor. Bruce > On 03 July 2020 at 20:18 glenlist <glenlist@cortexrf.com.au> wrote: > > > Bravo Microchip for extending the ECL lines. > > I use quite a few of them like  SY100EL33L (div 4 ).  I needed a 400 MHz > >> 100 MHz divider for driving the CPU clock from the ADC clock.  ECL. > yeah overkill. > > (74)AC doesnt quite make it. Wow- newish 74AUC will go to 300 MHz at > 1.8V. ...... > > Anyway the SY100EL33L  is cheap. and 3.3V. ..even if the package is > giant. (SOIC8) . > > But I like the Wenzel  skip divider- now that is cool- Thanks BRUCE for > posting that.  (http://www.wenzel.com/wp-content/uploads/dividers.pdf) > > > glen > > > On 03/07/2020 11:54, ed breya wrote: > > Jim, > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there.