Frequency to Voltage with NI 6002

Hi all

I am having a color sensor that outputs a Frequency in kHz that quantifies a particular color, when a LED is switched on. ( For e.g Red gives 12 kHz; Green  8  kHz and Blue gives 5  kHz)

At first i was planning to use a Freq to Voltage converter  (like LM2907) and the obtain voltage. But since i already have a NI 6002 box for another purpose in the same project, i was thinking whether i can i wire the sensor output directly to Analog Input of NI 6002 and get a reading/result ? Or would it be better to use Freq to Voltage converter and then proceed?

Thanks