| 摘要 |
PROBLEM TO BE SOLVED: To provide a testing apparatus for efficiently testing a plurality of signals. SOLUTION: In a digitizer device 40, a plurality of ADCs 102a and 102b convert a plurality of analog signals outputted from a device under test into digital signals. A processing circuit 110 is constituted as a software-dependent type circuit and processes a plurality of digital signals outputted from the plurality of ADCs 102a and 102b. The processing circuit 110 is formed in an FPGA 100. In the processing circuit 110, an FFT circuit 114 performs complex Fourier transformation on two digital signals. COPYRIGHT: (C)2009,JPO&INPIT
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