How to partially discharge TDA7419 spectrum analyzer capacitors?

[LCabr.3]

Dears, Good morning.

Regarding TDA7419's spectrum analyzer, the datasheet says:

"A reset of the sample capacitors is induced whenever SAclk remains high for the time tintres" From the tables, Tintres is 3ms.

Question: Is there a way to partially discharge the sample capacitor? I would like, for example, do 10 reads and for each one obtain decay of 10%. Maybe if I do each SAclk high for 300us (1/10 of Tintres) I can achieve this behavior for each reading cycle.

Thank you very much,

Leonardo.