Hi, I need to use the ADC0804LCN to sample an analog signal and store the output in an MCS51. I wanted to find out how the sampling frequency (say 300Hz) can be set (can it be done in hardware?). Also, I am slightly forgetting the concept of cut-off frequency, am i right in saying that would most-likely be the -3dB points. Is there any way I can set this....(Sorry if this is a stupuid question...) Regards, Saurabh