56～512kHz High-frequency Oscillator Circuit

Published:2011/6/30 4:17:00 Author:Joyce | Keyword: 56～512kHz, High-frequency , Oscillator | From:SeekIC

As shown in the figure is 56 ~ 512 kHz high-frequency oscillator circuit. It consists of high frequency oscillators and an alarm circuit. 1. The technique data: (1) Frequency range: 56 ~ 512 kHz; (2) output level: + 5.5± 1dB; (3) frequency accuracy: no more than ± 20Hz; (4) Alarm signal: when it stops oscillating, the alarm will light send out an alarm call. (5) working temperature: it can guarantee index between 0 to + 45 ℃, and work reliably between - 10 to 0 ℃ and + 45 to + 50 ℃ Choice of components : audion VTl~VT4:3DG101C、β=65 ~ 85, VT5 ~ VT6:3DG1308, β= 85 ~ 115. Quartz crystal SJT: 101 quartz crystal with foot stand t namely GZC7 - F. Choices for capacitor C1 and C4 are shown in the table attached.



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