Datasheet

A. Arrants 6
Figure 3: Power supply modification to SPU15A-103 switching power supply.
Otherwise, email the HSC Applications Group at [e-mail]
and ask for Part Number: EPS060250UH-P5P-SZ, CUI Inc. switching power supply.
This switching power supply has a ferrite core built into the DC lead to snub any
switching noise.
► The FFT plot appears normal, but performance is poor.
 Make sure you are using an appropriate filter on the analog input.
 Make sure the signal generators for the clock and the analog input are clean (low
phase noise).
 If you are using non-coherent sampling, change the analog input frequency slightly.
 Make sure the SPI config file matches the product being evaluated.
► The FFT window remains blank after the Run button is clicked.
 Make sure the evaluation board is securely connected to the HSC-ADC-EVALCZ
board
 Repeat steps 10 through 16.
 Make sure the FPGA has been programmed by verifying that the ‘DONE’ LED is
illuminated on the HSC-ADC-EVALCZ board. If this LED is not illuminated make
sure the U4 switch on the board is in the correct position for USB CONFIG.
 Make sure the correct FPGA program was installed.
► VisualAnalog indicates that the “FIFO capture timed out.”
 Make sure all power and USB connections are secure.
 Repeat steps 11 through 16.
 Probe the DCOA test point on the evaluation board and confirm a clock signal is
present at the ADC sampling rate.
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