RECONSTRUCTION FILTER
FL390
This tightly specified filter provides close tolerance amplitude and group delay response together with
Sinx/x correction over an extended bandwidth for reconstructing video signals to be converted at 30 MHz.
High attenuation levels are achieved at �½ S.F. and 4 x
f
sc
(NTSC + PAL) together with good stopband
performance making the filter ideal in allowing high quality analogue outputs from a multistandard digital test
pattern generator.
The filters are also supplied in matched delay sets to provide close timing of individual component channels.
Filter Shape
Passband Shape
Sampling Frequency
Insertion Loss at 100 kHz
End Of Passband
Passband Amplitude Ripple wrt 100 kHz
Loss wrt 100 kHz
Lowpass
Sinx/x
30 MHz
< 3.5 dB
9.0 MHz
< +0.05 dB to 8.8 MHz
< +0.10 dB to 9.0 MHz
> 20 dB at 13.50 MHz
> 60 dB at 14.32 MHz
> 60 dB at 17.72 MHz
> 46 dB at 21.00 MHz
> 46 dB
< 10 ns to 8.5 MHz
213 ns + 5 ns
< 2 ns
150 ohms
0°C to 70°C
No
DR00081B
Stopband Attenuation wrt 100 kHz
Group Delay Ripple
Delay Time at 200 kHz
Delay Tolerance of matched set at 200 kHz
Impedance
Temperature Range
Aqueous Washable
Package
© Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change
without notice
FARA007d
Page 1 of 2
Aug-05(B)
FARADAY [ FARADAY TECHNOLOGY ]
