TSH173 STMicroelectronics, TSH173 Datasheet - Page 10

• Manufacturer Part Number: TSH173
• Description: Single supply triple video buffer and filter
• Manufacturer: STMicroelectronics

Using the TSH173 to drive video components
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Using the TSH173 to drive video components
Figure 22. Video line interface implementation schematics
The interface is illustrated in
Figure 23. Bill of materials of the interface
Three 75-ohm resistors
Three matching resistors
One 10µF power supply decoupling capacitor
One 10nF power supply decoupling capacitor
Video
Video
DAC
DAC
Video
Video
DAC
DAC
Video
Video
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
Pb,B,C
Pb,B,C
Pr,R,C
Pr,R,C
Y,G
Y,G
R
R
G
G
B
B
0.3V
0.3V
GND
GND
0.3V
0.3V
GND
GND
GND
GND
0.3V
0.3V
1V
1V
1V
1V
1V
1V
0.7Vpp
0.7Vpp
0.7Vpp
0.7Vpp
1Vpp
1Vpp
VBS
VBS
DAC
DAC
load
load
resistor
resistor
DAC
DAC
load
load
resistor
resistor
DAC
DAC
load
load
resistor
resistor
R
R
R
R
R
R
450mV
450mV
450mV
450mV
450mV
450mV
+
+ +
+
+ +
+
+ +
Figure 23
Reconstruction
Reconstruction
Reconstruction
Reconstruction
Reconstruction
Reconstruction
TSH173
TSH173
TSH173
5
5
5
5
5
5
Filtering
Filtering
Filtering
Filtering
Filtering
Filtering
LPF
LPF
LPF
LPF
LPF
LPF
th
th
th
th
th
th
+5V
+5V
Order
Order
Order
Order
Order
Order
SO8
SO8
SO8
. It is composed of:
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω
+6dB
+6dB
+6dB
+6dB
+6dB
+6dB
TSH173
TSH173
0.635V
0.635V
0.035V
0.035V
2.035V
2.035V
GND
GND
0.635V
0.635V
2.035V
2.035V
0.635V
0.635V
GND
GND
2.035V
2.035V
GND
GND
2Vpp
2Vpp
1.4Vpp
1.4Vpp
1.4Vpp
1.4Vpp
Cable
Cable
Cable
Cable
Cable
Cable
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω Cable
75Ω Cable
75Ω Cable
75Ω Cable
75Ω Cable
75Ω Cable
1.0175V
1.0175V
0.3175V
0.3175V
0.0175V
0.0175V
0.3175V
0.3175V
1.0175V
1.0175V
GND
GND
GND
GND
GND
GND
0.3V
0.3V
1V
1V
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω
TV
TV
TV
1Vpp
1Vpp
0.7Vpp
0.7Vpp
0.7Vpp
0.7Vpp
TSH173
TV
TV