frequency divider - Electronic Circuits Projects Diagrams Free

jovabiot · 26th February 2004, 09:17 AM

i have a 100Mhz sinus wave and i want to have a 50Mhz sinus wave. How can i implement an analog frequency divider? Thanks

**Nigel Goodwin** · 26th February 2004, 06:46 PM

Quote:

Originally Posted by jovabiot

i have a 100Mhz sinus wave and i want to have a 50Mhz sinus wave. How can i implement an analog frequency divider? Thanks

You don't - not really!.

You need to give lots more details about what you are trying to do, and where the 100MHz is coming from.

jovabiot · 27th February 2004, 07:54 AM

ok. i'm going to design a bpsk demodulator. then, for recovering the modulator signal, i need a frequency divider, because i do the square of the signal, and with a pll i obtain my wave signal but with a frequency two times the one i need. then, how can i divide this frequency? thanks.

**Nigel Goodwin** · 27th February 2004, 08:29 AM

You use a digital divider, as you commonly do in PLL circuits. However, you need to get one which will work at 100MHz - I think standard TTL is only 50MHz.

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26th February 2004, 09:17 AM	(permalink)
jovabiot	frequency divider i have a 100Mhz sinus wave and i want to have a 50Mhz sinus wave. How can i implement an analog frequency divider? Thanks

27th February 2004, 07:54 AM	(permalink)
jovabiot	frequency divider ok. i'm going to design a bpsk demodulator. then, for recovering the modulator signal, i need a frequency divider, because i do the square of the signal, and with a pll i obtain my wave signal but with a frequency two times the one i need. then, how can i divide this frequency? thanks.

27th February 2004, 08:29 AM	(permalink)
Nigel Goodwin	You use a digital divider, as you commonly do in PLL circuits. However, you need to get one which will work at 100MHz - I think standard TTL is only 50MHz.