VARIABLE DELAY CIRCUIT AND OPTICAL TRANSMITTER

VARIABLE DELAY CIRCUIT AND OPTICAL TRANSMITTER

PROBLEM TO BE SOLVED: To provide a compact variable delay circuit capable of suppressing increase in a group delay and degradation of a waveform associated with delay amount control and to provide an optical transmitter provided with the variable delay circuit.SOLUTION: A variable delay circuit 100...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: HOSOYA KENICHI
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PULSE TECHNIQUE
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a compact variable delay circuit capable of suppressing increase in a group delay and degradation of a waveform associated with delay amount control and to provide an optical transmitter provided with the variable delay circuit.SOLUTION: A variable delay circuit 100 includes: a transmission line 110; a plurality of variable capacitance elements 120 one ends of which are coupled to the transmission line 110 and the other ends of which are connected to the ground; control means 130 that controls capacitance values of the variable capacitance elements 120; and at least one termination circuit 140 coupled in series to the variable capacitance elements 120.