A voltage controlled oscillator VCO (MC1648)
And MC1648 voltage controlled oscillator using a varactor diode chip, an external LC resonant circuit constituting the voltage-controlled oscillator varactor. Select an appropriate inductor,
you can change the output frequency of MC1648. In addition, MC1648 internal amplifier and AGC, the output frequency can be achieved Leveled, emitter follower isolation effect, can reduce
the load on the state of the oscillator. As a result of the integrated chip, simple circuit design, high reliability, and the use of PLL frequency synthesizer technology allows the output frequency
stability is further improved.
Third, technical indicators
1, supply voltage: + 12V (100mA)
2, the voltage-controlled frequency range (80MHz to 200MHz) other frequency ranges can be customized
3, the output amplitude: 18 dBm
4, with the shield case
5, there is provided a PDF schematics
package :
1pc module as picture show