Cross-Color Reduction Filter; Filter Summary - Harris ENC6800+ Installation And Operation Manual

Cross-Color Reduction Filter

Filter Summary

ENC/ENS6800+ Installation and Operation Manual
This section describes the cross-color reduction filters that are available
for the ENS-6804 board. The filter responses and characteristics are
limited to the structure of the custom FIR filter ASIC. These are 12-bit
coefficients with 15-tap folded FIR.
The implementation of each Cross-Color Reduction filter consists of two
filters: a vertical high pass filter and a horizontal high pass filter. The
frequency response of the vertical HPF is fixed and is
non-programmable, while the horizontal HPF is programmable.
Table A-1 summarizes the selectable horizontal high pass filters. The
values are the approximate bandwidths for the application. Examine the
filter plots for greater detail.
Table A-1. Bandwidth of Cross-Color Reduction Filters
Horizontal Pass Filters
Filter 1
Filter 2
Filter 3
Cutoff Frequency
6.0 MHz
5.8 MHz
5.0 MHz
Appendix A: Filters
43