| 摘要 |
A signal-detecting light-receiving device formed as an integrated circuit, which receives a light beam reflected from an optical recording medium, and which outputs a signal obtained from the received reflected light beam, through a current-output-type current amplifier circuit. The light-receiving device includes the following components: at least one resistor configured as a part of the integrated circuit, the at least one resistor being an output resistor used as a termination resistor for an output terminal of the light-receiving device, the output terminal being connected to an output of the current amplifier circuit; and a selecting circuit configured as a part of the integrated circuit, which controls the at least one resistor so as to enable/disable connection of the at least one resistor to the output terminal of the light-receiving device.
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