TSH60,61,62,63,64
5
Video Applications
Video Applications
TSH6x operational amplifiers can be used to buffer standard definition video signals on
75-ohm video lines. An example of a video channel is shown below. A typical third-order
filter and its response are also shown.
Figure 9. Implementation of a video driver on a video DAC output
V id e o
DAC
Volt
V id e o
S ig n a l
1.05V
50mV
tim e
R e co n s tr u ct io n
Filte r
+5V
1Vpp
LPF
+
TSH6x
_
1Kohm
1Kohm
V id e o
S ig n a l
2.1V
Volt
100mV
tim e
Video
Signal
75Ω 75Ω Cable
1.05V
50m V
tim e
1Vpp
75Ω
2Vpp
Figure 10. Third order low-pass filter and its response (for standard definition video)
5pF
Vin
33pF
6.8uH
Vout
33pF
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