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Use Case 1 enables all tests and all modes. To operate the AMS101 evaluation card in any
one of those modes, see
performance is required, use an external signal source. Select an appropriate Use Case (2 or
3) for the desired operating conditions based on
The AMS Evaluator tool GUI allows you a good amount of control and flexibility over the
two DAC outputs in the AD5065. See
Generate Sinewave Using DAC box to output a sine wave on DAC A and DC bias voltage
on DAC B. Uncheck the Generate Sinewave Using DAC box and both DACs output the
DC voltages as written in the V
supplies the analog voltage to the positive XADC inputs (V
DAC B ( V
V
For simplicity, on the AMS101 evaluation card, all three positive XADC inputs (V
V
V
Use Case 2—Single-Ended External Analog Source
Use Case 2 allows an external analog voltage source on the positive input to the XADC (V
V
DAC B. See
range between 0V and 1V. This DAC voltage is configurable in the AMS Evaluator tool
GUI.
For Use Case 2, connect jumper J3 between pins 2 and 3 and connect the external analog
signal to pin 1 of jumper J2. Connect jumper J5 between pins 1 and 2 to supply the DAC B
voltage as set by the V
X-Ref Target - Figure 3-5
AMS101 Evaluation Card User Guide
UG886 (v1.3) November 6, 2013
XADC Configuration, page
offset) always supplies the analog voltage to the negative XADC inputs (V
N
, and V
).
AUXN0
AUXN8
and V
) have been shorted together and all three negative XADC inputs (V
AUXP0 ,
AUXP8
, and V
) have been shorted together.
AUXN0
AUXN8
, and V
). The negative analog input (V
AUXP0
AUXP8
Figure
3-5. This allows the common-mode voltage on the negative input to
offset box in the AMS Evaluator tool. See
N
VP/VAUX0P/VAUX8P
VN/VAUX0N/VAUX8N
Figure 3-5: Use Case 2 Block Diagram
www.xilinx.com
38. If the optimum dynamic
Table
3-1.
Figure 4-5, page 41
offset and V
offset boxes. DAC A (V
P
N
, V
N
AUXN0
DAC
A
Positive external
source
Board Setup
for more details. Check the
offset) always
P
, V
, and V
) and
P
AUXP0
AUXP8
,
P
, and V
) is supplied by
AUXN8
Figure
3-6.
DAC
B
UG886_c3_05_092512
,
N
,
N
,
P
33
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