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2. ??????(Sinewave Oscillator). 3.0 ??3.1 !????????????3.2 !LC???????????3.3 LC?????????3.4 ?????3.5 RC??????3.6 ????????(????????)3.7 ??????. 3. ? ?. ?????????????????? ,LC?????????????RC???,????????????????????????:!?????????????????,!???????????????,?????????????????????????????????????RC?????????????????????????????????????,???????? .

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1. ?????? ??? ?????? (?)?????,LC???

2. 2 ??????(Sinewave Oscillator) 3.0 ?? 3.1 !???????????? 3.2 !LC??????????? 3.3 LC????????? 3.4 ????? 3.5 RC?????? 3.6 ????????(????????) 3.7 ??????

3. 3 ? ? ?????????????????? ,LC?????????????RC???,?????????????????????? ??: !?????????????????,!???????????????,??????????? ?????????????????????? ????RC????????????????? ????????????????????,????????

4. 4 3.0 ?? ???????????????????????????????????? ???????,??????????????,?????????????????????????????? ??????????????,???????????????????????????????

5. 5 2?????? ??????? ?????????????? ??????? ??????????? ??????? LC????RC????????? ????????????? ?????????????

6. 6 3?????? ???????,????????? ???:??????????????? ????????:???????????????????????????,????????? ?????????:???????????????,?????????????,?????????????????????? ??:????????

7. 7 4?????? ??????????? ???????? ???????,????????? ???????,??????????? ?????????????????? ???,????

8. 8 5??????????? ??????????????????????????,???????????,?????????,??????????????????? ?????? ??CAD??,??PSPICE??????

9. 9 3.1 ?????????? ?????????? ?????LC?????,????????????,???????????????????????? ????:??,??????????(????) ????:??,?????????????????????,?????? ????:??,???????????,????????????????????,??????????????????? ?????(?????) ??????,???????????,???????????????????(?????) ??????,???????????,??????????????

10. 10 ?????????? ????????

11. 11 ?????? ?? ?????? ??????,???????????????????(????) ???????????????osc????,???????osc???A(j?osc)F(j?osc)=1

12. 12 1.????? ????? (??)???? ???? ??????:???????1 ??????:VF?Vi??,?????

13. 13 ??

14. 14 ??????????? ?????gm?????F?????,??????????????? ?????? ????????????

15. 15 ????????????

16. 16 ????????????? ????????????,????????? ????????????????????? ?????Q???,?????????,????????????,???????????OSC???????????????0 ?????????????????????

17. 17 2.????? ????? ??????????,??????????????????????????????????????????????,???????????????????? ????????????,??????,????????,????VF??????Vi(??)????,??|VF|>|Vi| ?????????? ???? ????

18. 18 ?????? ???? ????,??????????? ??????,?????????????????A ?????????A,??????????? ???????,????T???1,??????Vi????,???????????????????? ??????????,??????????????(?????/???) ,???????A??????????????(?????) ????? ????????,??????????????,?????????

19. 19 ???? ??????????T=AF>1,??????????????,??????????,??????,???????T=AF=1 ???????????????,????????????,??????? ?????????,??????????A???????????(??) ??????????????T>1?????T=1,??????????,???? ???????????????,???????????????,????????,?????Q???,????????

20. 20 ????????? ?????????? ????? ——???????????? ????:

21. 21 ????? ???????? ??????????????(????????????)?

22. 22 ?? ??

23. 23

24. 24 ????????? ???? ????????,??????,??????I0 ????????????,??????(????),???????????????????

25. 25 ???????? ???,????,???????,????T>1 ???(??)??????????,?????,?????????T=1 ??????,???????????

26. 26 ??? ????,?????,???????? ?????,???????,???????,??????????,???????? ???????????,?????????

27. 27 ???? ???,?????A???,??? ???,??Vi?????,?????????,?A??B?,??Ie???????,??????Ie=??,??IeQ,?????????Ie=Re??;??,Ib=Rb??? ???????,?????????C??? ??????????????????

28. 28 ?????? ???? ??????????????????????????? ??????????,?????????,?????????????? ?????,?????????????????,???????? ??,????????

29. 29 ?????? ??????,?????1, ????VF?????????Vi

30. 30 ????????? ????F?????????,? ????????,?????(??????)?????;??,???????,???T=AF=1 ??????????,??????? ????????????? ???????????????,???????????,????,??? ??????,??????,???? ???????,?????,??????,??????

31. 31 ?????? ??????????????????,?????????????? ????,??????;??,… ?????????????? ????OSC?,??????,????????????2?(2n?) ??????,???????????,?????,???????????,?????????

32. 32 ????????? ???????(?????),?????????????????

33. 33 ???????????? ???? ???? ????

34. 34 ?????????? ?????????????? ???????????????? ???????? ?????(?????) ????T????????? ???????? ????????????????,??????T(j?),????????T>1 ??????????????

35. 35 3.2 LC???????? ?LC??(??)????????????????LC??? LC???,????????????????????????????? ????: ??????,????????,??????????????????,?????????????,????????,?????????????????,?????? ????,????????????????????;?????,??????????????????,???????,???????????

36. 36 ??????? ???Q???? LC????????????????,????????????,???????????,???????????(LC????)?????????,????????????LC??????,?????????????Q? ??Q????????????????,??????????1?????;Q?????????????????????? ??,???????????LC???????????,???????????? ????????????,???????????,???????? ???LC???????????????????????

37. 37 ????LC??? ???????,?????????????? ????? ?????

38. 38 ????LC??? ???????,?????????????? ????? ?????

39. 39 ??????

40. 40 ??????

41. 41 ?????

42. 42 ?????? ????????LC?????????,????????????????

43. 43 ?2: ????????????????????????????????????

44. 44

45. 45 ????????? ??????????????? ???????????

46. 46 ??????

47. 47 ??????

48. 48 ????????????

49. 49 ?3 ???????????? ????????????????Cb’e?0,?=30,rb’e=1200????????L=0.1uH,??????Q0=100??C1=C2,?????????f0=50MHz?????RL??,RE=1k?? ???????? ???????,????Q????????

50. 50 ??:

51. 51 ??????

52. 52 ?????? ????? ????? ??:?????????????,????????,??????????;??????? ??:???????????? ??????????,????????????,??????? ????? ??:???????????? ??:?????????,???????????;??????

53. 53 ??????????? ?????????(???)???????????(???)??????????,????????????????? ????F???????????F??,????,?????????????????,?????????;F??,???????????,Q???,????,??????,???????? ???????????????? ???????????????? ??Q?--???????????

54. 54 ???(Clapp)??

55. 55 ????????? ?? ??????????????????? ??????????????? ?? ??????,???????? ????????????CE???,?C3??

56. 56 ??(Siler)?? ??C4,??????,????????????????????????,???????? ?????????

57. 57 ???????????

58. 58 ?: ???????????????,??????????????,??????

59. 59

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