HDTV ANTIALIASING FILTERS
ZERO LOSS
•
•
•
Zero Insertion loss
•
Fully compliant to SMPTE 260M
Low output impedance via op-amp driver stage
•
pin DIP package
Integer multiple clock delay between luminance and chrominance filters
Meeting all the pre and post filtering characteristics of SMPTE 260M this range of HDTV antialiasing filters include a
video buffer to give 0dB insertion loss. This more complete and accurate solution removes some of the ambiguity of
optimising buffers and filters separately particularly illustrated at the high bandwidths required for HDTV applications.
Part number
Filter type
Input Impedance
Insertion loss at 100 kHz
End of passband
Passband amplitude ripple
Group delay ripple
Delay time at 200 kHz
Attenuation at 37.125 MHz wrt 100 kHz
1
Attenuation at 44.25 MHz wrt 100 kHz
Start of stopband
Stopband attenuation wrt 100 kHz
Supply voltage
Typical current
Aqueous Washable
Package
Part number
Filter type
Input impedance
Insertion loss at 100 kHz
End of passband
Passband amplitude ripple
Group delay ripple
Delay time at 200 kHz
Attenuation at 18.5625 MHz wrt 100 kHz
2
Attenuation at 22.125 MHz wrt 100 kHz
Start of stopband
Stopband attenuation wrt 100 kHz
Supply voltage
Typical current
Aqueous Washable
Package
1
AH1175
Luminance Pre
75 ohms
0 dB ± 0.05 dB
30 MHz
< 0.1 dB
< 2 ns to 20 MHz
< 3 ns to 30 MHz
112 ns ± 2 ns
> 12 dB
> 40 dB
54.25 MHz
> 50 dB to 150 MHz
± 5 volts
5 mA per rail
No
DR00161A
AH1177
Chrominance Pre
75 ohms
0 dB ± 0.05 dB
15 MHz
< 0.1 dB
< 2 ns to 10 MHz
< 3 ns to 15 MHz
220 ns ± 3 ns
> 12 dB
> 40 dB
27.125 MHz
> 50 dB to 100 MHz
± 5 volts
5 mA per rail
No
DR00161A
AH1176
Luminance Post
75 ohms
0 dB ± 0.05 dB
30 MHz
< 0.1 dB
1
< 2 ns to 20 MHz
< 3 ns to 30 MHz
112 ns ± 2 ns
> 12 dB
> 40 dB
54.25 MHz
> 50 dB to 150 MHz
± 5 volts
5 mA per rail
No
DR00161A
AH1178
Chrominance Post
75 ohms
0 dB ± 0.05 dB
15 MHz
< 0.1 dB
2
< 2 ns to 10 MHz
< 3 ns to 15 MHz
215 ns ± 3 ns
> 12 dB
> 40 dB
27.125 MHz
> 50 dB to 100 MHz
± 5 volts
5 mA per rail
No
DR00161A
Includes Sinx/x correction for a Sampling Frequency of 74.25 MHz.
© Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change
without notice
FARA036d
Page 1 of 2
Dec-99(B)
PACKAGE DETAIL
2
Includes Sinx/x correction for a Sampling Frequency of 37.125 MHz.
Faraday Technology Ltd.
Croft Road Industrial Estate,
Newcastle, Staffordshire
ST5 0QZ. England.
FARA036d
Tel:
Fax:
Email:
Web site:
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+ 44 (0)1782 661501
+ 44 (0)1782 630101
sales@faradaytech.co.uk
http://www.faradaytech.co.uk
Dec-99(B)
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