Datasheet

DocID7502 Rev 4 3/36
TSH7x Typical application: video driver
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1 Typical application: video driver
A typical application for the TSH7x family is that of a video driver for driving STi7xxx DAC
outputs on 75-ohm lines.
Figure 1 show the benefits of the TSH7x family as single supply drivers.
Figure 1. Benefits of TSH7x family: +3 V or +5 V single supply solution
+5V
75Ω
75Ω Cable
75Ω
2Vpp
1Vpp1Vpp
Video
DAC
LPF
Reconstruction
Filtering
Y,G
75Ω
75Ω Cable
75Ω
Video
DAC
Pb,B
75Ω
Video
DAC
Pr,R
TV
TSH73
75Ω Cable
75Ω
LPF
Reconstruction
Filtering
LPF
Reconstruction
Filtering
1.4Vpp1.4Vpp
0.7Vpp0.7Vpp
1.4Vpp1.4Vpp
0.7Vpp0.7Vpp
GND
+
_
+
_
+
_
+
_
+
_
+
_
Vcc=+5V
Vcc=+3V
2Vp-p
GND
50mV
1Vp-p
GND
100mV
Gain=2
+
_
GND
GND
+5V
VOL=40mVmax.
(Tested)
VOH=4.2Vmin.
(Tested)
2Vp-p
GND
100mV
VOL=30mVmax.
(Tested)
VOH=2.45Vmin.
(Tested)
2.1V
2.1V
1kΩ
1kΩ
+3V
-5V
Video DAC’s outputs:
Bottom of
synchronization tip
around 50mV