Narrow pulse signal generator based on clock drive
A signal generator and clock-driven technology, applied in the electronic field, can solve problems such as overshoot effect tailing, achieve pulse tailing suppression, solve pulse sidelobes, and facilitate debugging
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[0030] Taking the generation of narrow pulses with a repetition frequency of 100MHz as an example, the specific implementation of this scheme is described, as follows:
[0031] Clock source: The active crystal oscillator is MOSC-1058-H-B from MEI, the frequency is 100MHz, and the DC power supply voltage is Vcc=5V. When the crystal oscillator is directly connected to a load of 50 ohms, the output signal is a square wave, and the peak-to-peak voltage Vpp is 3.7V.
[0032] Coupling capacitance: C1=68pF
[0033] Resonance matching circuit: L1, C2, L2 are 82nH, 48pF, 22nH respectively.
[0034] Narrow pulse forming circuit: the type of step recovery diode (SRD) is 2J3C produced by Chengdu Yaguang Electronics Co., Ltd., the minority carrier lifetime τ is 10ns, the step time Tt<150ps, and the junction capacitance Cj=0.6pF.
[0035] Pulse shaping circuit: L3=47nF, Schottky diode (SBD) selects Bas125 of Siemens.
[0036] The component parameters given above are the circuit parameter...
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