LOW COST HDTV FILTERS
HF SERIES
The HF range of low cost HDTV filters are available in a choice of miniature packages and give near SMPTE 274M performance suitable for single pass or monitor applications.
• • • Aqueous washable Ideal for monitor outputs SIL or SMD package
HF7425FP* Lowpass Flat 74.25 MHz < 1.0 dB 29.7 MHz
< 0.1 dB to 29.0 MHz < 0.15 dB to 29.7 MHz
• • •
Near SMPTE 274M performance Pre and Post, Luminance and Chrominance filters Integer N0 of clock delays between Luminance and Chrominance Filters
HF3712FP* Lowpass Flat 37.125 MHz < 1.0 dB 14.85 MHz
< 0.1 dB to 14.5 MHz < 0.15 dB to 14.85 MHz
Filter Type Filter Shape Passband Shape Sampling Frequency Insertion Loss at 100 kHz End Of Passband Amplitude Ripple > 12 dB Attenuation @ > 40 dB Attenuation @ Start Of Stopband Stopband Attenuation Stopband Measured to Group Delay Ripple Delay Time at 200 kHz Impedance Temperature Range SMD Reflow Limitations Aqueous Washable
1 2
HF7425SP* Lowpass Sinx/x 74.25 MHz < 5.0 dB 29.7 MHz
< 0.2 dB to 29.0 MHz < 0.25 dB1 to 29.7 MHz 1
1
HF3712SP* Lowpass Sinx/x 37.125 MHz < 5.0 dB 14.85 MHz
< 0.2 dB2 to 14.5 MHz < 0.25 dB2 to 14.85 MHz 2
37.400 MHz 44.550 MHz 54.200 MHz > 50 dB 100 MHz
18.563 MHz 22.275 MHz 27.100 MHz > 50 dB 100 MHz
37.400 MHz 44.550 MHz 54.200 MHz > 50 dB 100 MHz
18.563 MHz 22.275 MHz 27.100 MHz > 50 dB 100 MHz
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