GENERAL PURPOSE VIDEO FILTERS
SL...A SERIES
STEEPNESS FACTOR 1.40
This range of 7-pole Elliptical Function Low Pass Filters is intended for bandwidth limitation with minimal distortion of
the transmitted signal. The filters are corrected for Group Delay distortion over approx. 92% of the passband and for loss
distortion over the entire passband. Degradation of a composite video signal is minimal when a 4.5 MHz or 5.5 MHz filter
is selected for a 525 or 625 line T.V. system. Specifically the 14.0 MHz filter has become popular in COFDM systems to
band limit 8.0 MHz signals centred on 9.143 MHz.
Order Code
SL0200A
SL0250A
SL0300A
SL0350A
SL0400A
SL0450A
SL0500A
SL0550A
SL0600A
SL0650A
SL0700A
SL0750A
SL0800A
SL0850A
SL0900A
SL0950A
SL1000A
SL1400A
End of Passband
MHz
Start of Stopband
MHz
Group Delay Ripple
ns max
Delay Time
ns
2.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
6.50
7.00
7.50
8.00
8.50
9.00
9.50
10.00
14.00
2.80
3.50
4.20
4.90
5.60
6.30
7.00
7.70
8.40
9.10
9.80
10.50
11.20
11.90
12.60
13.20
14.00
19.60
40
30
25
25
20
20
15
15
15
12
12
10
10
10
10
10
10
8
785
628
523
448
392
349
314
285
262
242
224
209
196
185
174
165
157
115
This range may be extended down to 0.5 MHz and up to 20 MHz. Filters with other end of passband frequencies within
the range can be supplied at no extra cost.
Order as SL****A inserting the frequency required in place of the asterisk eg for 5.23 MHz SL0523A.
Other data
Impedance
75 ohms
Insertion Loss
< 1.5 dB
Stopband attenuation wrt 100 kHz
> 40 dB
Amplitude ripple in passband
< 0.3 dB
Video performance for filters of 5.0 MHz (4.5 MHz for 525 line) and above.
Pulse and bar: K - rating
<1%
Luminance/Chrominance Gain inequality (20T)
<3%
© Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change
without notice
FARA043d
Page 1 of 2
Aug-05(B)
FARADAY [ FARADAY TECHNOLOGY ]
