| 摘要 |
There is disclosed a differential oscillator circuit including first (10) and second (20) branches each including the series arrangement, between high (VDD) and low (VSS) supply potentials, of a first transistor (4, 5), a first current source (2, 3) and resistor means (8, 9, 18, 19; 18*, 19*). The first transistors are interconnected so as to form a crossed pair of transistors, the most positive current terminal of each transistor (on the "drain" side) being connected to the control terminal of the other transistor of the crossed pair. This differential oscillator circuit further includes an electromechanical resonator (6) connected to the crossed transistor pair on the "drain" side, as well as a capacitive element (7) connected to the crossed transistor pair on the "source" side. Advantageously, for high frequency applications, the electromechanical resonator can be of the bulk acoustic wave type.
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