i am using a crystal of 30MHz. but i dont know the crystal specification. i have
used 22 pf load capacitors, but the frequency generated is 10 MHz. (i suppose
there could be some impedance mismatch)
so if someone could suggest the vendor for crystal oscillators or other
solution.
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Crystal oscillator for F2812 board
Started by ●April 5, 2008
Reply by ●April 7, 20082008-04-07
Hi
It's better use bigger Cap. like 33pF capacitor.
It's my experience.
for more information see (sprs174O-section 3-10)
Amin
n...@gmail.com wrote:
i am using a crystal of 30MHz. but i dont know the crystal specification. i have used 22 pf load capacitors, but the frequency generated is 10 MHz. (i suppose there could be some impedance mismatch)
so if someone could suggest the vendor for crystal oscillators or other solution.
Check Out Industry's First Single-Chip, Multi-Format, Real-Time HD Video Transcoding Solution for Commercial & Consumer End Equipment: www.ti.com/dm6467
It's better use bigger Cap. like 33pF capacitor.
It's my experience.
for more information see (sprs174O-section 3-10)
Amin
n...@gmail.com wrote:
i am using a crystal of 30MHz. but i dont know the crystal specification. i have used 22 pf load capacitors, but the frequency generated is 10 MHz. (i suppose there could be some impedance mismatch)
so if someone could suggest the vendor for crystal oscillators or other solution.
Check Out Industry's First Single-Chip, Multi-Format, Real-Time HD Video Transcoding Solution for Commercial & Consumer End Equipment: www.ti.com/dm6467
Reply by ●April 7, 20082008-04-07
That is a crystal with fundamental frequency of 10MHz.
With proper configuration, it can work at 3rd
harmonic. If you don't know the exact parameters,
change a crystal with fundamental frequency of 30MHz.
I ran into the same problem once.
Chao
--- n...@gmail.comд
> i am using a crystal of 30MHz. but i dont know the
> crystal specification. i have used 22 pf load
> capacitors, but the frequency generated is 10 MHz.
> (i suppose there could be some impedance mismatch)
> so if someone could suggest the vendor for crystal
> oscillators or other solution.
>
Check Out Industry's First Single-Chip, Multi-Format, Real-Time HD Video Transcoding Solution for Commercial & Consumer End Equipment: www.ti.com/dm6467
With proper configuration, it can work at 3rd
harmonic. If you don't know the exact parameters,
change a crystal with fundamental frequency of 30MHz.
I ran into the same problem once.
Chao
--- n...@gmail.comд
> i am using a crystal of 30MHz. but i dont know the
> crystal specification. i have used 22 pf load
> capacitors, but the frequency generated is 10 MHz.
> (i suppose there could be some impedance mismatch)
> so if someone could suggest the vendor for crystal
> oscillators or other solution.
>
Check Out Industry's First Single-Chip, Multi-Format, Real-Time HD Video Transcoding Solution for Commercial & Consumer End Equipment: www.ti.com/dm6467
