| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical pulse detector in which a trimming process for minimum reception sensitivity is easily performed with high accuracy and reproducibility. SOLUTION: A reception unit 100 has a first trimming circuit 112 and a second trimming circuit 125. The second trimming circuit 125 includes at least a test signal generating circuit 119 which generates a pulse signal, whose amplitude is determined based on a result of trimming by the first trimming circuit 112, to input it as the test signal 122 into an amplifier circuit 102. COPYRIGHT: (C)2011,JPO&INPIT |
