The cutoff frequency (fCUTOFF) of the LTC1069-1 is equal to the clock frequency divided by 100. The gain at fCUTOFF is 0.7dB and the typical passband ripple is 0.15dB up to 0.9 fCUTOFF. The stopband attenuation of the LTC1069-1 features a progressive elliptic response reaching 20dB attenuation at 1.2 fCUTOFF, 52dB attenuation at 1.4fCUTOFF and 70dB attenuation at 2fCUTOFF. With 5V supplies, the LTC1069-1 cutoff frequency can be clock-tuned up to 12kHz; with a single 5V supply, the maximum cutoff frequency is 8kHz. The low power feature of the LTC1069-1 does not penalize the device's dynamic range. With 5V supplies and an input range of 0.3VRMS to 2.5VRMS, the signal-to-(noise + THD) ratio is 70dB. The wideband noise of the LTC1069-1 is 110VRMS. Other filter responses with lower power or higher speed can be obtained. Please contact LTC marketing for details.