SGM9149 Datasheet, PDF (6/10 Pages) SG Micro Corp – Standard Definition Video Filter Driver

SGM9149
13MHz, Triple-Channel, 5th-Order,
Standard Definition Video Filter Driver
TYPICAL APPLICATION
The following schematic in Figure 1 is normally used for AC-coupled output and DC-coupled input with DAC which has
an output voltage range from 0V to 1.4V. AC-coupled output offers slightly lower power dissipation and high ESD
protection ability.
The schematic in Figure 2 is also popular in design.
Y
75Ω
Pb
75Ω
0.1µF
or 0.01µF
4
VCC
1
8
IN1 OUT1
SGM9149
+5V
10µF
Y
75Ω 220µF
2 _{IN2 OUT2} 7
Pb
75Ω 220µF
Pr
75Ω
3
6
IN3 OUT3
Pr
GND
75Ω 220µF
5
Figure 1. Input DC Coupling and Output AC Coupling Application Schematic
CVBS1
75Ω
Y
S-Video
75Ω
C
75Ω
0.1µF
or 0.01µF
4
0.1µF
VCC
1
8
IN1 OUT1
SGM9149
0.1µF
2 _IN2
OUT2 ⁷
0.1µF
3
IN3
6
OUT3
GND
5
+5V
10µF
75Ω 220µF
CVBS1
75Ω 220µF
Y
S-Video
C
75Ω 220µF
Figure 2. AC Coupling Application Schematic
NOTE:
1. Power supply VCC must be sequenced on first before input video signals.
SG Micro Corp
6
www.sg-micro.com