[time-nuts] 10 MHz -> 16 MHz clock multiplier

[Bruce Griffiths]

Since injection locking is possible when the ratio of the 2 frequencies 
involved is a rational number, a 16 MHz oscillator can be directly 
injection locked to a 10MHz signal without the need for dividers etc.

Bruce

paul swed wrote:
> Tom.
> OK the challenge simple. CD4046 16 MHz vco and div by 8 using a 2 Mhz ref.
> Thats pretty easy as they say.
> As an alternative and very easy 10 MHz div 2 2MHz X 4 X 2. This requires
> BPF but pretty easy also.
> Lastly an injection osc. 10 Mhz div to 2 Mhz differentiate and feed to a 16
> Mhz osc.
> Thats actually the easiest of the approaches.
> Regards
> Paul
>
>
> On Wed, Jan 2, 2013 at 1:54 PM, Tom Van Baak<tvb at leapsecond.com>  wrote:
>
>    
>> What's the simplest way to generate 16 MHz from 10 MHz? This will be for
>> clocking a microcontroller at 16 MHz given 10 MHz (Cs/Rb/GPSDO). Low price
>> and low parts count is a goal; jitter is not a concern but absolute
>> long-term phase coherence is a must.
>>
>> The ICS525 (as in TAPR Clock-Block) is a good candidate but I was
>> wondering if there's something cheaper, less functional, and maybe not
>> SSOP. Any suggestions?
>>
>> Thanks,
>> /tvb
>>
>>
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