Faraday BFB1432F Antialiasing filter Datasheet

BFB SERIES
ANTIALIASING FILTERS
These very small, low cost, filters are intended for use with A-D and D-A composite NTSC video
converters using a sample rate of 4 x sub-carrier frequency. The cut off rate is slower than often
recommended to reduce time domain ringing.
The pre-filters have a flat passband and the post-filters are shaped to provide sinx/x correction.
Filters suitable for different sampling rates or with various losses at the half sampling frequency can
be supplied.
Type Number
BFB1432F
BFB1432S
Filter Shape
Lowpass
Lowpass
Passband Shape
Flat
Sinx/x
Sampling Frequency
14.32 MHz
14.32 MHz
Insertion Loss at 100 kHz
< 1.5 dB
< 4.5 dB
End Of Passband
5.51 MHz
5.51 MHz
Passband Amplitude Ripple
0.1 dB max
0.1 dB max
Loss at half S.F.
12 dB + 2 dB
12 dB + 2 dB
Start Of Stopband
9.12 MHz
9.12 MHz
Stopband Attenuation
40 dB min
40 dB min
Delay Time at 200 kHz
188 ns + 5 ns
217 ns + 5 ns
Pulse and bar: K - rating
1%
1%
Impedance
75 ohms
75 ohms
Temperature Range
0°C to 70°C
0°C to 70°C
Aqueous Washable
Yes
Yes
Package Type
DR00275A
DR00253A
© Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice
FARA175d
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PACKAGE DETAIL
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Newcastle, Staffordshire
ST5 0QZ. England.
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Tel:
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