MAX9540 Maxim Integrated Products, MAX9540 Datasheet - Page 10

• Manufacturer Part Number: MAX9540
• Description: (MAX9539 / MAX9540) Graphics Video Sync Adder/Extractor
• Manufacturer: Maxim Integrated Products

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The bypass capacitors should include a 0.1µF ceramic
surface-mount capacitor between each supply pin and
the ground plane, located as close to the package as
possible. Optionally, place a 10µF tantalum capacitor
at the power-supply pins’ points of entry to the PC
board to ensure the integrity of incoming supplies. The
power-supply trace should lead directly from the tanta-
Graphics Video Sync Adder/Extractor
Figure 2. MAX9539 Input and Output Functionality
Figure 3. MAX9540 Input and Output Functionality
10
VIDEO WITH
SYNC
(IN_)
VIDEO OUTPUT
(OUT_R/B/G)
SYNC OUTPUT
(_SYNC)
GREEN OUTPUT
(OUT_G)
HOR. SYNC
(HSYNC)
VER. SYNC
(VSYNC)
______________________________________________________________________________________
VIDEO INPUT
(IN_)
RED OUTPUT
(OUT_R)
BLUE OUTPUT
(OUT_B)
0.7V
1.4V
5V
-2.4V
0V
0V
lum capacitor to the V
parasitic inductance, keep PC traces short and use
surface-mount components.
Use surface-mount resistors for input termination and
output back termination. Place the termination resistors
as close to the IC as possible.
Figure 4. Sync Pulse Polarity
5V
-2.4V
POSITIVE SYNC
NEGATIVE SYNC
CC
and V
1.4V
EE
1.4V
1.4V
0.7V
+5V
0V
+5V
0V
pins. To minimize
5V
-2.4V
-2.4V
0V
0V
0V
0V
0V
0V