HF7425FP Datasheet, PDF (1/2 Pages) Faraday Technology – LOW COST HDTV FILTERS

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
• Near SMPTE 274M performance
• Pre and Post, Luminance and Chrominance filters
• Integer N⁰ of clock delays between Luminance and Chrominance Filters
Filter Type
HF7425FP*
HF3712FP*
HF7425SP*
HF3712SP*
Filter Shape
Lowpass
Lowpass
Lowpass
Lowpass
Passband Shape
Flat
Flat
Sinx/x
Sinx/x
Sampling Frequency
74.25 MHz
37.125 MHz
74.25 MHz
37.125 MHz
Insertion Loss at 100 kHz < 1.0 dB
< 1.0 dB
< 5.0 dB
< 5.0 dB
End Of Passband
Amplitude Ripple
> 12 dB Attenuation @
> 40 dB Attenuation @
29.7 MHz
< 0.1 dB to 29.0 MHz
< 0.15 dB to 29.7 MHz
37.400 MHz
44.550 MHz
14.85 MHz
< 0.1 dB to 14.5 MHz
< 0.15 dB to 14.85 MHz
18.563 MHz
22.275 MHz
29.7 MHz
< 0.2 dB¹ to 29.0 MHz
< 0.25 dB¹ to 29.7 MHz
37.400 MHz¹
44.550 MHz
14.85 MHz
< 0.2 dB² to 14.5 MHz
< 0.25 dB² to 14.85 MHz
18.563 MHz²
22.275 MHz
Start Of Stopband
54.200 MHz
27.100 MHz
54.200 MHz
27.100 MHz
Stopband Attenuation
> 50 dB
> 50 dB
> 50 dB
> 50 dB
Stopband Measured to 100 MHz
100 MHz
100 MHz
100 MHz
Group Delay Ripple
Delay Time at 200 kHz
Impedance
<±4.5 ns to 20.0 MHz <±8.0 ns to 10.0 MHz
<±6.4 ns to 29.7 MHz <±12.0 ns to 14.8 MHz
Integer N⁰ of clock delays between Luminance
and Chrominance Filters
75 ohms
75 ohms
<±4.5 ns to 20.0 MHz <±8.0 ns to 10.0 MHz
<±6.4 ns to 29.7 MHz <±12.0 ns to 14.8 MHz
Integer N⁰ of clock delays + reconstruction delay
between Luminance and Chrominance Filters
75 ohms
75 ohms
Temperature Range
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
SMD Reflow Limitations
refer to Data Sheet Fara309
Aqueous Washable
Yes
Yes
Yes
Yes
1_{Measured against sinx/x roll off for a sampling frequency of 74.25 MHz}
2_{Measured against sinx/x roll off for a sampling frequency of 37.125 MHz}
Part Numbering
HF
Sampling 74.25 MHz – 7425
Frequency 37.125 MHz – 3712
Package
DR00005A - A
DR00291A - B
Passband
Shape
Sinx - S
Flat – F
Realisation Passive - P
Example part number HF7425SPA is a passive, luminance, sinx/x corrected for a S.F. of 74.25
MHz packaged in a 11 pin SIL as DR00005A
© Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice
Fara225p
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Aug-05(C)