The LTC1164-6 provides an elliptic lowpass rolloff with stopband attenuation of 64dB at 1.44 f CUTOFF and an fCLK-to- fCUTOFF ratio of 100:1 (pin10 to V - ).For a ratio of 100:1, fCUTOFF can be clock-tuned up to 10kHz. For a fCLK-to-fCUTOFF ratio of 50:1 (pin 10 to V + ), the LTC1164-6 provides an elliptic lowpass filter with fCUTOFF frequencies up to 20kHz. When pin 10 is connected to ground, the LTC1164-6 approximates an 8th order linear phase re-sponse with 65dB attenuation at 4.5 f -3dB and fCLK/f-3dB ratio of 160:1. The LTC1164-6 is pin compatible with the LTC1064-1.
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