Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
MPEG
VDD
DECODER
CVBS
DAC
0.1µF
INA
CLAMP
MAX9589
LPF
AV = 2V/V
VDD
3.3V
0.1µF
GND
OUTA 75Ω
220µF
CVBS1
0.1µF
INB
VDD
LUMA
DAC
0.1µF
INC
VDD
CHROMA
DAC
0.1µF
IND
CLAMP
CLAMP
BIAS
75Ω 220µF
OUTB
LPF
AV = 2V/V
CVBS2
75Ω 220µF
OUTC
LPF
AV = 2V/V
Y
75Ω 220µF
OUTD
LPF
AV = 2V/V
C
Figure 3. AC-Coupled Outputs
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