Lesson 1 – The Training DAC
160
The digitizer needs a trigger pulse to start capturing. This trigger
pulse is provided by a digital pin of the tester.
DAC Connections
The training DAC has 28 pins:
DAC Pinout
For the test, the DUT input and output signals are connected as
shown below:
DAC Signal Connections
The analog output signal is terminated via a 50 Ω resistor to
ground in the digitizer.
To see the DAC parameters, please have a look at the
specifications in the Appendix.
Among many other parameters they specify also the limits for
differential non-linearity (DNL), integral non-linearity (INL), and
offset error.
These are the limits you will test the DAC for.
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