[time-nuts] Have 10 MHz need 19.2 MHz

List, Another hardware possibility.    Double the 10 MHz to 20 MHz.   With another circuit of 74HC390’s divide 10 MHz to 200 KHz.  Then double it twice to 800 KHz with LM 1496 DBM’s.  Apply the two frequencies to a LM 1496 DBM and use a LPF to get the 19.2 MHz.   Hardware complicated?  A bit. 

[time-nuts] Have 10 MHz need 19.2 MHz

List,   My reply to Javier Herrero   P  Double the 10 MHz to 20 MHz.   P  With another circuit of 74HC390’s divide 10 MHz to 200 KHz.  Then double it twice to 800 KHz with LM 1496 DBM’s.  Apply the two frequencies to a LM 1496 DBM and use a LPF to get the 19.2 MHz.   P  Hardware complicated?  A

Re: [time-nuts] Have 10 MHz need 19.2 MHz

I'm glad I asked this question. I was hoping to get ideas I'd never think of. It's going to be hard to beat that TI PLL chip especially because TI offers free samples. The injection idea seems almost like cheating. I might use part of the idea below to divide down 10MHz then inject that into the

Re: [time-nuts] Have 10 MHz need 19.2 MHz

Since the actual crystal frequency appears to be 19.2 MHz rather than 19.5, my original suggestion of injection locking it would have to be modified. For example, you could divide the 10 MHz by 25 ( a single 74HC390 could do it) to make 400 kHz, so 19.2 MHz could sync to the 48th harmonic. Ed

Re: [time-nuts] Have 10 MHz need 19.2 MHz

On 07.06.2013 19:23, Perry Sandeen wrote: List, Another hardware possibility. Double the 10 MHz to 20 MHz. With another circuit of 74HC390’s divide 10 MHz to 200 KHz. Then double it twice to 800 KHz with LM 1496 DBM’s. Apply the two frequencies to a LM 1496 DBM and use a LPF to get th

Re: [time-nuts] Have 10 MHz need 19.2 MHz

I received this all jumbled up in one long line without any sort of formatting, because the sender's mail client does not use standardized structure -- so I don't know who wrote what: A 74HC4046 can reach 19.2 MHz Be very careful about specs like that and be sure to read all the fine print.