The LTC1569CS8-6#PBF is a 10th Order Lowpass Filter featuring linear phase and a root raised cosine amplitude response. The high selectivity of the LTC1569-6 combined with its linear phase in the passband makes it suitable for filtering both in data communications and data acquisition systems. Furthermore, its root raised cosine response offers the optimum pulse shaping for PAM data communications. The filter attenuation is 50dB at 1.5 fCUTOFF, 60dB at 2 fCUTOFF and in excess of 80dB at 6 fCUTOFF. DC-accuracy-sensitive applications benefit from the 5mV maximum DC offset. The LTC1569-6 sampled data filter does not require an external clock yet its cutoff frequency can be set with a single external resistor with a typical accuracy of 3.5% or better. The external resistor programs an internal oscillator whose frequency is divided by 1, 4 or 16 prior to being applied to the filter network.
