Universal analog-to-digital converter testing device
An analog-to-digital converter and test device technology, which is applied in the direction of analog/digital conversion calibration/testing, etc., can solve the problems of test channel parasitic parameters affecting performance indicators, difficult performance in performance testing, and high cost, so as to facilitate system management and maintenance. , low cost, easy to characterize the effect
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Embodiment 1
[0051] like figure 1 As shown, this embodiment provides a general analog-to-digital converter testing device, the testing device at least includes: an analog-to-digital converter test module 1, a plurality of test interface boards 2, a test motherboard 3, an external power supply, and a signal generator 5, and the logic analyzer 6, the analog-to-digital converter test module 1 is connected to the test interface board 2 and the test motherboard 3 in turn, the external power supply, the signal generator 5 and the logic analyzer 6 are connected to each other and are all connected to the analog-to-digital converter test module 1 .
[0052] like figure 1 As shown, the test device also includes a main control computer 7, which is connected with the test motherboard 3, the analog-to-digital converter test module 1, the external power supply, and the signal generator 5, And the main control computer 7 is also connected to the network server 8 and the data processing server 9 .
[005...
Embodiment 2
[0086] This embodiment provides a general analog-to-digital converter testing device, such as image 3 As shown, the difference between this device and the first embodiment is that the model and unit circuit of each unit in the analog-to-digital converter test module 1 are further enumerated.
[0087] like image 3 As shown, the analog-to-digital converter test module 1 includes a signal conditioning unit 11, a sine wave generator unit 12, an analog-to-digital converter 13, a multiplexing unit 14, a power management unit 15, a high-speed connector unit 16, and a module code 17. and standard sample unit 18.
[0088] The signal conditioning unit 11 is connected with the signal generator 5 and the sine wave generator unit 12, and is used to condition the signal output by the signal generator 5 or the sine wave generator unit 12, and output the signal to the module. digital converter 13. This system scheme adopts DDS sine wave generator, the scheme is simple and easy to control...
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