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DS1843 Evaluation Kit User Guide
UG6224; Rev 0; 10/15
Below are instructions for connecting and powering the DS1843 evaluation kit. See the schematic at the end of this document for
more information.
1. Connect GND, then V
CC
to a power supply. V
CC
should be between 3.0V and 5.5V. V
CC
is filtered on the EV kit using a
600Ω ferrite bead.
2. Jumper J6 is provided to switch DEN (differential output enable) between V
CC
and GND to select single-ended or
differential output. If DEN is connected to GND, then single- ended output is enabled. Jumper DEN to V
CC
for differential
output.
3. A BNC jack is provided for the SEN (sample enable) input. A 50Ω termination to ground (R5) is included on the EV kit
board. Apply a pulse of 300ns or greater to this input. Ensure that the pulse generator is set up with a 50Ω series
resistance.
4. Inputs V
INP
and V
INN
are connected to BNC jacks. Several footprints have been provided so the loading applied to the
inputs can be changed. This EV kit is shipped configured for a current-source input with a 1.6kΩ resistor between V
INP
and
V
INN
. V
INN
can be connected to GND using the jumper J7 “V
INN
GND.”
5. The outputs V
OUTP
and V
OUTN
are also connected to BNC jacks. Again, several footprints have been included to add
loading to these outputs. This kit is shipped with no loading applied to the two output pins.
6. All optional components use 0805 footprints. The Spare Components section of the board contains some optional
components that can be used to load either the inputs or the outputs of the DS1843.
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