PGA460-Q1: Pin9 Test pin pull low resistor value ?

Tool/software:

Hi 

in my cusotmer's applicatio the PGA460 need to connect to 3.3V MCU. so we need to pull low the test pin (Pin 9) 

Can we use 0 ohm to connect this pin to ground directly? or what resistor value should we use to pull low this pin? 

thanks!