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MAX9526 Evaluation Kit
Table 4. Jumper Selection for I 2 C Interface
JUMPER
JU3
JU4
JU8
JU10
JU11
JU12
JU19
SHUNT POSITION
Not installed*
PCB trace cut open
Not installed*
PCB trace cut open
1-2*
2-3
1-2*
2-3
Not installed*
PCB trace cut open
Not installed*
PCB trace cut open
1-2*
3-4
5-6
DESCRIPTION
SDA pullup resistor R24 connected
SDA pullup must be user supplied
SCL pullup resistor R25 connected
SCL pullup must be user supplied
U6 ADV7176A ALSB = +3.3V
U6 ADV7176A ALSB = GND
U5 MAX4586 A = USB+5V
U5 MAX4586 A = GND
SDA connected to on-board microcontroller
SDA disconnected from on-board microcontroller
SCL connected to on-board microcontroller
SCL disconnected from on-board microcontroller
U1 MAX9526 DEVADR = +3.3V
U1 MAX9526 DEVADR = GND
U1 MAX9526 DEVADR = SDA
*Default position.
Table 5. Jumper Selection for Power Supply
JUMPER
JU1
*Default position.
SHUNT POSITION
1-2*
2-3
DESCRIPTION
Power 3.3V LDO U4 from external user-supplied power supply
Power 3.3V LDO U4 from USB+5V
User-Supplied 3.3V Power Supply
The MAX9526 EV kit requires a USB connection to
power the on-board microcontroller. When directly con-
nected to a high-power (500mA) USB host, move the
shunt of JU1 to the 2-3 position to power the EV kit 3.3V
and 1.8V LDO linear regulators (U4 and U3) from USB.
When used with a low-power (100mA) USB host, such as
a hub, power the 3.3V MAX1658 LDO linear regulator
from an external 500mA power supply. Move the shunt of
JU1 to the 1-2 position to apply your own 4.8V to 16.5V
DC power supply at the P1 (EXT PWR) banana jack.
Input Coupling
The MAX9526 EV kit inputs IN1A, IN1B, and IN2 are
AC-coupled.
Output Coupling
The MAX9526 EV kit drives DC-coupled analog video
reconstruction outputs from the ADV7176A (U6).
8
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