many years amplitude, Delay phase corrected filters have found applica

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many years amplitude, Delay phase corrected filters have found applica

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VIDEO LOWPASS FILTERS SERIES ATLW Stopband Ratio @45dB 1.32 ATCL Stopband Ratio @45dB 1.14 ATBW Stopband Ratio @45dB 1.08 Stopband Ratio @42dB 1.066
many years amplitude, Delay phase corrected filters have found applications Television Broadcasting, Cable transmission, Direct Satellite Transmission, Analog Digital Image Processing, Analog Digital conversion Computer Graphics. Allen Avionics offers four basic shape factors stopband ratios their range Video Filters. ATLW General purpose filters include amplitude,Phase Group Delay equalization improve pulse response. Smooth slower roll reduces ringing. used Video bandwidth limiting application. Also used anti aliasing filters analog digital conversion applications post aliasing filters with addition correction. ATCL More complex filter applications requiring sharper cutoff rate. tight control amplitude, phase delay ATCL series makes them ideal high performance analog digital applications. ATBW Almost Brickwall Filter. ATBW good compromise sharpness, ringing, insertion loss cost. ATBW stopband ratio 1.08 close series Brickwall ratio 1.066 less ringing, Delay distortion insertion loss. true Brickwall Filter. series sharpest cutoff Video filter available anywhere. Tight control Amplitude, Phase Delay Characteristics create filter unmatched sharpness, ringing, insertion loss cost. Typical NTSC applications this filter pass 4.20MHz reject everything above 4.48MHz which requires stopband ratio 1.066. Brickwall data sheet.
Basic ATLW Specifications
ATLW PART NUMBER .2db ATLW0P46 0.46 ATLW0P93 0.93 ATLW1P40 1.40 ATLW1P87 1.87 ATLW2P34 2.34 ATLW2P57 2.57 ATLW2P80 2.80 ATLW2P92 2.92 ATLW3P27 3.27 ATLW3P74 3.74 ATLW3P97 3.97 ATLW4P03 4.03 ATLW4P21 4.21 ATLW4P68 4.68 ATLW4P91 4.91 ATLW5P15 5.15 ATLW5P43 5.43 ATLW5P61 5.61 ATLW6P08 6.08 ATLW6P55 6.55 ATLW7P02 7.02 ATLW7P49 7.49 ATLW7P95 7.95 ATLW8P42 8.42 ATLW8P89 8.89 ATLW9P36 9.36 F3dB >45dB 0.52 0.61 1.03 1.22 1.55 1.85 2.06 2.47 2.58 3.09 2.84 3.40 3.09 3.70 3.22 3.86 3.61 4.32 4.12 4.94 4.38 5.25 4.44 5.32 4.64 5.56 5.15 6.18 5.41 6.48 5.67 6.80 5.98 7.17 6.19 7.40 6.70 8.03 7.22 8.65 7.73 9.27 8.25 9.89 8.76 10.50 9.28 11.12 9.79 11.74 10.31 12.36 0.44 0.89 1.33 1.78 2.22 2.45 2.67 2.77 3.11 3.56 3.78 3.83 4.00 4.45 4.67 4.90 5.16 5.34 5.79 6.23 6.68 7.12 7.57 8.01 8.46 8.90 5500 2750 1833 1375 1100 1000
PERFORMANCE Passband Flatness: Ripple Less than +/-.1dB Insertion Loss 100KHz =1.0dB Impedance Ohms unbalanced Return Loss -20dB typical Group Delay Ripple less than midband delay Stopband Attenuation 45dB Stopband Ratio 1.32@-45dB Temperature Range Operating Degrees Celsius Frequency which amplitude ripple exceeds (peak peak ripple) Frequency which stopband attenuation exceeds F3dB Nominal Frequency which attenuation Nominal Propagation delay through filter Nanoseconds Typical passband group delay ripple, Nanoseconds peak-to-peak Frequency which group delay ripple limits exceeded, Peak-to-peak passband ripple, Minimum stopband attenuation,
Basic ATCL Specifications
ATCL PART NUMBER .2db >45dB ATCL0P46 0.46 0.53 ATCL0P93 0.93 1.06 ATCL1P40 1.40 1.60 ATCL1P87 1.87 2.13 ATCL2P34 2.34 2.66 ATCL2P57 2.57 2.92 ATCL2P80 2.80 3.19 ATCL2P92 2.92 3.32 ATCL3P27 3.27 3.72 ATCL3P74 3.74 4.26 ATCL3P97 3.97 4.52 ATCL4P03 4.03 4.59 ATCL4P21 4.21 4.80 ATCL4P68 4.68 5.34 ATCL4P91 4.91 5.59 ATCL5P15 5.15 5.87 ATCL5P43 5.43 6.19 ATCL5P61 5.61 6.39 ATCL6P08 6.08 6.94 ATCL6P55 6.55 7.47 ATCL7P02 7.02 8.00 ATCL7P49 7.49 8.54 ATCL7P95 7.95 9.07 ATCL8P42 8.42 9.60 ATCL8P89 8.89 10.13 ATCL9P36 9.36 10.67 0.43 0.86 1.30 1.73 2.17 2.39 2.60 2.71 3.04 3.48 3.69 3.75 3.91 4.35 4.57 4.79 5.05 5.22 5.65 6.09 6.52 6.96 7.40 7.83 8.26 8.70 8846 4466 2967 2233 1782 1619 1488 1428 1275 1114 1050 1035
PERFORMANCE Passband Flatness: Ripple Less than +/-.1dB Insertion Loss 100KHz =2.5dB Impedance Ohms unbalanced Return Loss -20dB typical Group Delay Ripple less than 1.5% midband delay Stopband Attenuation 45dB Stopband Ratio 1.14@-45dB Temperature Range Operating Degrees Celsius
Basic ATBW Specifications
ATBW PART NUMBER .2db >45dB ATBW0P46 0.46 0.49 ATBW0P93 0.93 1.00 ATBW1P40 1.40 1.52 ATBW1P87 1.87 2.02 ATBW2P34 2.34 2.53 ATBW2P57 2.57 2.78 ATBW2P80 2.80 3.03 ATBW2P92 2.92 3.15 ATBW3P27 3.27 3.54 ATBW3P74 3.74 4.04 ATBW3P97 3.97 4.29 ATBW4P03 4.03 4.35 ATBW4P21 4.21 5.63 ATBW4P68 4.68 5.05 ATBW4P91 4.91 6.54 ATBW5P15 5.15 5.56 ATBW5P43 5.43 5.87 ATBW5P61 5.61 6.05 ATBW6P08 6.08 6.56 ATBW6P55 6.55 7.08 ATBW7P02 7.02 7.59 ATBW7P49 7.49 8.09 ATBW7P95 7.95 8.59 ATBW8P42 8.42 9.10 ATBW8P89 8.89 9.60 ATBW9P36 9.36 10.11 0.42 0.86 1.30 1.72 2.16 2.37 2.59 2.70 3.02 3.45 3.67 3.72 3.89 4.32 4.54 4.76 5.02 5.18 5.62 6.05 6.49 7.92 7.35 8.78 8.22 8.65 10612 5591 3710 2780 2222 2023 1857 1780 1590 1390 1310 1290 1235 1111 1059 1010
PERFORMANCE Passband Flatness: Ripple Less than +/-.1dB Insertion Loss 100KHz =4dB Impedance Ohms unbalanced Return Loss -20dB typical Group Delay Ripple less than 1.25% midband delay Stopband Attenuation 45dB Stopband Ratio 1.08@-45dB Temperature Range Operating Degrees Celsius

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