Light-receiving device, optical pickup, and optical disc apparatus

An optical pickup comprising:

• 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, said optical pickup receiving an output signal via a signal line connected to said current amplifier circuit of said light-receiving device,
• wherein said light-receiving device includes,
• at least one resistor configured as a part of said integrated circuit, said at least one resistor being an output resistor used as a termination resistor for an output terminal of said light-receiving device, said output terminal being connected to an output of said current amplifier circuit, and
• a selecting circuit configured as a part of said integrated circuit, which controls said at least one resistor so as to enable/disable connection of said at least one resistor to said output terminal of said light-receiving device.

An optical disc apparatus comprising:

• an optical pickup provided with a signal-detecting light-receiving device formed as an integrated circuit, said light-receiving device receiving a light beam reflected from an optical recording medium, and outputting a signal obtained from the received reflected light beam, through a current-output-type current amplifier circuit, said optical disc apparatus receiving an output signal via a signal line that connects said current amplifier circuit of said light-receiving device to a signal processing circuit,
• wherein said light-receiving device provided in said optical pickup includes,
• at least one resistor configured as a part of said integrated circuit, said at least one resistor being an output resistor used as a termination resistor for an output terminal of said light-receiving device, said output terminal being connected to an output of said current amplifier circuit, and
• a selecting circuit configured as a part of said integrated circuit, which controls said at least one resistor so as to enable/disable connection of said at least one resistor to said output terminal of said light-receiving device.