Cirrus Logic AN366 - Manual (Page 18)

AN366
18 AN366REV2
6 Full Calibration and Compensation Example Using the CDB5484 and MTE Meter Test
Equipment
The calibration and compensation flows have been implemented using the CDB5484U and a PC as the controller.
Using a MTE Meter Test Equipment AG PTS 400.3 Modular Portable Test System source and reference meter, the
results of this calibration can be shown. More information can be found by visiting the MTE Meter Test Equipment
website.
The CDB5484U connections are as follows:
1. The USB connects to the CDB5484U on the right. Using the standard CDB5484U GUI, commands and read
results from the Cirrus AFE can be sent.
2. The DUT supplies are connected to terminals J36 and J37. It is not recommended to use the USB supply to
power the Cirrus AFE during accuracy tests. Instead, use terminals J36 and J37.
3. Voltage is applied directly to the CDB5484U. Current inputs are looped through a terminal board and outputs are
sent to the CDB5484U.
4. The PC was connected to the RS232 connection on the MTE Meter Test Equipment power source and power
reference.
5. The pulse output is connected to an external counter or optically back to the MTE Meter Test Equipment power
reference.
6. The controller in this example is the CDB5484U and PC. While the CDB5484U is good for presentation, it is not
recommended to be used as a production solution.