Jumper Settings; Link Headers And 0 Ω Resistors; Smb Connectors - Analog Devices EVAL-ADG5401FEBZ User Manual

EVAL-ADG5401FEBZ

JUMPER SETTINGS

LINK HEADERS AND 0 Ω RESISTORS
The on-board link headers (LK1 to LK4) can control the
ADG5401F manually and short the main switch channel to the
feedback channel, if required. On-board 0 Ω, 300 Ω, and 1 kΩ
resistors configure the digital control voltage and isolate the
LEDs from the rest of the system. Table 1 lists the link headers
and resistors and explains how each is used on the EVAL-
ADG5401FEBZ.
The LK1 link header controls the
Place the link header in Position LO to open the switch and
place the link header in Position HI to close the switch.
The LK2 link header controls the user selectable POC feature of
the ADG5401F. Place the link header in Position HI to disable
the POC feature and place the link header in Position LO to
enable the POC feature.
The LK3 and LK4 link headers short both the S and SFB nodes
and the D and DFB nodes on the EVAL-ADG5401FEBZ. When
using the device as a single-channel switch without the feedback
channel, insert the LK3 and LK4 link headers to short the nodes.
The R6 resistor connects the VIN pin of the on-board
LDO regulator to the EVAL-ADG5401FEBZ VDD terminal
supply. Remove the R6 resistor to protect the LDO regulator
from voltages higher than 40 V. Move the 0 Ω R10 resistor to
the R11 pad to use an alternative digital voltage connected to
the EVAL-ADG5401FEBZ EXT_VL terminal.
The R4 and R5 resistors connect the LEDs to the digital power
supply pin, VL, and the R2 and R3 resistors connect the
ADG5401F FF pin to the LED control.
User Guide
ADG5401F switch channel.
ADP7142
Table 1. Link Header Descriptions
Label Position
LK1 LO
HI
LK2 HI
LO
LK3 Inserted
Removed
LK4 Inserted
Removed
R6 Inserted
Removed
R2, R3 Inserted
Removed
R4, R5 Inserted
Removed
R1 Inserted
Removed
R10 Inserted
R11 Inserted

SMB CONNECTORS

The parallel interface of the
manually using the LK1 link header or accessed by using the IN
SMB connector. To use the SMB connectors, remove the LK1
link header. Use the FF SMB connector to access the
FF digital output.
Rev. A | Page 5 of 8
UG-1755
Description
S/D switch open, SFB/DFB switch open
S/D switch closed, SFB/DFB switch closed
POC feature disabled
POC feature enabled
S shorted to SFB
S disconnected from SFB
D shorted to DFB
D disconnected from DFB
LDO regulator powered up
LDO regulator unpowered
FF pin connected to LED
FF pin disconnected from LED
LED1 and LED2 connected to the VL node
LED1 and LED2 disconnected from VL node
1 kΩ pull-up resistor at the FF pin
No external pull-up resistor at the FF pin
On-board LDO regulator digital voltage
EXT_VL digital voltage
ADG5401F can either be controlled
ADG5401F