Xilinx AMS101 User Manual page 34

Chapter 3: AMS101 Evaluation Hardware
X-Ref Target - Figure 3-6
Jumper J2
Figure 3-6: Use Case 2 Jumper Configurations for Single-Ended External Analog Source
Use Case 3—Differential External Analog Source
Use Case 3 covers the case where you want to apply an external differential signal source
to the XADC positive and negative inputs.
for this use case.
X-Ref Target - Figure 3-7
34
Triangle Near Jumpers Indicates Pin 1
Black Filled Boxes Indicate Jumper Position
2
Ground
Apply Positive Analog
Input Signal to Pin 1
VP/VAUX0P/VAUX8P
VN/VAUX0N/VAUX8N
Figure 3-7: Use Case 3 Circuit Diagram
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3
1
2
1
3
2
1
Apply Negative Analog
Input Voltage with "Vn
Offset" Window in AMS
Evaluator
Figure 3-7 shows a high level circuit diagram
DAC
A
Positive External Negative
Source External Source
AMS101 Evaluation Card User Guide
Jumper J3
Jumper J5
UG886_c3_06_081612
DAC
B
UG886_c3_07_092512
UG886 (v1.3) November 6, 2013