| 摘要 |
Disclosed is a demodulator circuit which comprises a limiter circuit, a differentiation circuit, a monostable multivibrator circuit and an integration circuit. The differentiation circuit is composed of a delay circuit and a differential logic circuit. The differentiation circuit supplies the monostable multivibrator circuit with a trigger pulse whose pulse width is determined by the delay circuit. The monostable multivibrator circuit is formed of a differential circuit, having a current source at its output circuit. The current source tends to increase the output voltage of the monostable multivibrator circuit and a driving impedance for the integration circuit.
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