I'm using the AIC3254 as a digital filter in my modem application trying to filter the following signals - 980Hz, 1180Hz, 1650Hz and 1850 Hz. My input signal is from a modem which is a signal at Input Vrms of 700mV. Since the AIC3254 allows only 500mV input rms, what do you suggest I use after the signal to drop it below 500mV??

Will a normal resistor divider do or will this mess with the input frequency of the signal??