Designed for use in digitization of high definition television
signals.
hdtv
Passband amplitude ripple less than ± .05dB
Delay distortion less than ± 1.5 nanoseconds
Group delay matching included
Stopband ratio: 1.475 @ 40 dB
Pre
and Post low pass filters available
Sampling frequency
Y channel: 74.25 MHz
Cb & Cr channel: 37.125 MHz
Several types of packages available
75 Ohm impedance
Pre-Filter insertion loss: 1 dB maximum
Post-Filter insertion loss: 3.5 dB maximum
Several types of packages available
75 Ohm impedance
Pre-Filter Insertion Loss: 1 dB maximum
Post-Filter Insertion Loss: 3.5 dB maximum
These miniature lowpass filters are ideal for suppressing aliasing
components in analog and digital HDTV systems. All new HDTV products that
require control of delay and amplitude to SMPTE 260M and 274M
specifications can be improved by using these filters. The HDTV series
filters are amplitude and group delay equalized to reduce ringing in high
performance video applications.
Technical
Data
Part Number
Cutoff Frequency (MHz)
Stopband Ratio @ 40dB
- 50 dB
@ Frequency
(MHz)
Sample Rate
(MHz)
- 12 dB
@ Frequency
(MHz)
Amplitude
Ripple (dB)
Delay
Distortion to 20 MHz to 30 MHz
Typical
Group Delay (nano- seconds)
HDTV-30P0-H
30.0
1.475
54.25
-
37.125
± .05
± 1 nsec ± 1.5 nsec
95
HDTV-30P0-HS
30.0
1.475
54.25
74.25
37.125
± .05
± 1 nsec ± 1.5 nsec
95
Part Number
Cutoff Frequency (MHz)
Stopband Ratio @ 40dB
- 50 dB
@ Frequency
(MHz)
Sample Rate
(MHz)
- 6 dB
@ Frequency
(MHz)
Amplitude
Ripple (dB)
Delay
Distortion to 10 MHz to 15 MHz
Typical
Group Delay (nano- seconds)
HDTV-15P0-H
15.0
1.475
27.125
-
18.56
± .05
± 1 nsec ± 1.5 nsec
180
HDTV-15P0-HS
15.0
1.475
27.125
37.125
18.56
± .05
± 1 nsec ± 1.5 nsec
180
For
post-filters add "S" to part number. Use V, H or M to
designate the package style. (click
to see dimensions)
