PAL & NTSC 601 D/A Video Post Filters


( U.S. Patent No.: 6476685 )   New design for low cost applications

Model No.:  UN601-0575S ( PAL )
UNF-0420S ( NTSC )

Electrical Specifications



UN601-0575S ( PAL ) UNF-0420S ( NTSC )
Input & output AC Impedance Zo 75 ohm 75 ohm
Passband , Fv 5.75MHz 4.2MHz
Passband Amplitude Ripple 0.3dB max 0.3dB max
Start of Stopband Fs 8.1MHz -40dB min 6.1MHz -40dB min
Stopband attenuation -40dB min up to 100MHz -40dB min up to 50MHz
Flat Loss at 100KHz -4.5dB max -4.5dB max
Sin x/x correction Yes Yes
Typical Group Delay 360ns +/- 20 ns 480ns +/- 20 ns
Passband Group Delay ripple +/- 20ns max +/- 20ns max
Passband Group Delay control to 5.5MHz 4.1MHz

Physical Dimensions ( Type B )

Measurement Set up


Test Instrument Results and Read out ( UN601-0575S )

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