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EVAL-ADG5404FEBZ User Guide
JUMPER SETTINGS
LINK HEADERS
Use the link headers to control the
configure the digital control voltage, and to isolate the LED
from the system. Table 2 shows a summary of the link headers
and how they are used on the evaluation board.
Use LK3 and LK4 to control the switches of the ADG5404F. Use
LK2 to enable or disable the device.
Position A is tied to GND and sets the logic low, whereas
Position B is tied to DC_V1 and sets the logic high.
Table 1.
ADG5404F
Truth Table
LK2 (EN)
LK3 (A0)
A
X
1
B
A
B
B
B
A
B
B
X = don't care.
1
LK1 allows the user to configure the state of the drain during an
overvoltage condition.
LK6 connects the on-board LDO regulator to the V
Remove the header to protect the LDO regulator from voltages
higher than 28 V or to use an alternative digital control voltage.
Change the header on LK5 to Position B to connect to DC_V1.
LK8 connects the LED to the digital power supply, and LK7
connects the FF or SF pin of the
SMB CONNECTORS
Control the parallel interface of the
the link headers of LK2 to LK4, or access it using the SMB
connectors, A0/F0, A1/F1, and EN. To use the SMB connectors,
remove the link headers of LK2 to LK4. Use the FF/SF SMB
connectors to access the FF/SF digital outputs from the ADG5404F.
ADG5404F
manually, to
LK4 (A1)
Connected Sx
X
1
All switches off
A
S1
A
S2
B
S3
B
S4
supply.
DD
ADG5404F
to the LED.
ADG5404F
manually using
Table 2. Link Header Descriptions
Link
Header
Position
LK1
A
B
LK2
A
B
LK3
A
B
LK4
A
B
LK5
A
B
LK6
Inserted
Removed
LK7
Inserted
Removed
LK8
Inserted
Removed
LK9
A
B
Rev. 0 | Page 5 of 6
UG-790
Description
V
or V
during an overvoltage
DD
SS
Open circuit during an overvoltage
All switches off (disabled)
Device enabled (EN pin), switch
function set by A0/F0 and A1/F1 pins
Logic 0 on A0/F0 pin
Logic 1 on A0/F0 pin
Logic 0 on A1/F1 pin
Logic 1 on A1/F1 pin
DC_V1 digital voltage
On-board LDO regulator digital
voltage
LDO regulator powered up
LDO regulator unpowered
FF/SF pins connected to LED
FF/SF pins disconnected from LED
LED powered up
LED unpowered
FF pin controls the LED
SF pin controls the LED
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