Frequency-Voltage converter

[Guest]

conv con vcf32

Hi

I need a Frequency-Voltage schematic (without the LM2907)
Where can I find one

Best Regards
Pendragon

 

[7rots51]

I think you can National semiconductor lm331 and app notes,or you can use analog device vfc like ad654 ad537

 

[Moss]

Also you can look at Burr-Brown's( now TI) VCF32.

 

[D1_DRE]

do u know u can use a simple phase locked loop as well for this purpose :lol:

 

[shanren]

LM331 is a good choice.i am know using it,it is good and very cheap and it is easy to get.many company have products like it.you can find app notes in national semi.or

 

[strabush]

Hi,
drive the signal into a monostable multivibrator (one shot) like 74HC4538 or even 555 and average its output with a low pass filter will give you a frequency to voltage conversion.