MAX9511 Maxim Integrated Products, MAX9511 Datasheet - Page 12

• Manufacturer Part Number: MAX9511
• Description: Complete VGA Interface
• Manufacturer: Maxim Integrated Products

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Complete VGA Interface with
EMI Suppression
Figure 5. Slew-Rate Control with a Digital Potentiometer
The circuit in Figure 5 uses a MAX5432 digital poten-
tiometer to provide more flexibility in customizing slew
rates. An 80kΩ external trim resistor is placed in parallel
12
______________________________________________________________________________________
MANAGEMENT
POWER-
CIRCUIT
37.5Ω
37.5Ω
37.5Ω
10
11
8
9
4
2
5
DDC_DATA_IN
H_SYNC_IN
V_SYNC_IN
DDC_CLK_IN
RED_IN
GREEN_IN
BLUE_IN
SHDN
7
3, 20, 22, 24
V
5V
DD1
13
AGND
0.1µF
MAX9511
0.1µF
2.3V TO 3.6V
DDC_DATA_OUT
18
DDC_CLK_OUT
DGND
V
H_SYNC_OUT
V_SYNC_OUT
DD2
GREEN_OUT
BLUE_OUT
12
RED_OUT
5V
V
CC
RX
1
0.22µF
4.7µF
1nF
19
17
16
15
14
23
21
6
SDA
SCL
with the 50kΩ MAX5432 to limit the maximum value of
R
ues through the I
RX
7kΩ
to 38kΩ. This setup provides 33 levels of R
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω
L
H
MAX5432
C
SYNC
C
LIMITING CAPACITORS
SYNC
SYNC BANDWIDTH
= 47pF TO 470pF
2
REMOTE MONITOR
W
C control ports at the MAX5432.
C
R1 = 80kΩ
SYNC
DOCKING STATION
RX
val-