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- (PCM Endoder) - (PCM Decoder) . , . - , . , , , . ( PCM Decoder Emona FOTEx) , -. "" PCM Enoder, .

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FOTEx. (PCM Encoder), (PCM Decoder) Emona FOTEx 8- , 0 , . 0000000 -2 , 1111111 +2 . , 2 . , 1000000, 0000000 1111111, 0 ( +2 -2 ).

Emona FOTEx . , ( ). . , , . , .

 

NI ELVIS II USB-

Emona FOTEx

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1. , NI ELVIS II , .

2. Emona FOTEx NI ELVIS II.

3. Emona FOTEx NI ELVIS II.

 

1: . , NI ELVIS II, FOTEx.

2: FOTEx .

 

4. NI ELVIS II USB.

5. NI ELVIS II, , , .

6. .

7. NI ELVISmx.

8. Variable Power Supply ( ).

9. Variable Power Supply 0 .

10. Mode PCM Encoder PCM ().

11. , . 1.

 

1

 

: (GND).

 

-, . 2. 100kHz DIGITAL ( 100 ) (Master Signals). (Variable Power Supplies).

2

 

Variable Power Supplies - , IN , CLK , FS To CH 0 0,

PCM data To CH 1 1, Master Signals

12. (VI) Oscilloscope NI ELVIS ().

13. , 1 ( 15) :

Scale ( ) 2 /. 1 /.

Coupling ( ) DC ( ) AC ( )

Trigger Level ( ) 2 0 .

Timebase ( ) 10 /. 500 /.

14. Slope () - ().

15. 1 ( Channel 1 Enabled) (PCM DATA) (FS).

16. Voltage (Variable Power Supplies), 2.5 .

 

: , , . , .

17. Variable Power Supplies ( ).

18. .

19. Function Generator ( ).

20. :

Waveshape ( ): Sine () Frequency (): 500

Amplitude ( ): 4

DC Offset ( ): 0

21. . 3.

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3

 

-, . 4. (PCM Encoder) 500 (Function Generator). PCM DATA (-).

 

 

4

 

Function Generator , IN , CLK ,

FS To C 0 0,

PCM data To CH 1 1.

 

B

, -, Emona FOTEx PCM Decoder (-).

22. 1 .

23. . 5.

 

5

 

-, . 6. , "" .

 

6

 

PCM Encoding - : Message To CH 0 0,

IN , CLK

PCM Decoding - : PCM data - ,

"Stolen" CLK , PCM Decoder ,

Output To CH 1 1

24. :

Scale ( ) 1 /.

Vertical position ( ) 0

Coupling ( ) AC ( ) Trigger Level ( ) 0

SLOPE () + ().

Timebase ( ) 500 /.

25. 1 , (PCM Decoder).

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26. , Stop.

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28. NI ELVIS II Dynamic Signal Analyzer ( ).

 

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7

 

 

29. : Input Settings ( )

30. Run .

 

1: , , . 8.

2: NI ELVIS II , D .

 

8

 

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31. -

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, NI ELVIS II .

32. , Cursors On ( ).

 

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NI ELVIS II , 1 2, . , "" .

33. 1.

 

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34. 33 2.

 

: Position () Cursor Setting ( ), .

 

NI ELVIS II , ( ) . .

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36. .

 

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37. 1 .

38. 2 -.

39 , .

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40. 2 - .

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41. Frequency Span ( ) 15000 .

42. 2 500 .

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43. ( ) 1 .

44. 2 , - 1 .

45. , Stop ().

46. , Run ().

47. .

48. 2 .

: , Timebase ( ) 100 /.

49. 3 .

50. .

51. .

52. 2, .

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53. 500 .

54. Frequency Span ( ) 40000 .

55. 2 , : 12 13 , 24.5 25.5 , 37 38 .

 

 

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56. , 9.

 

9

 

-, . 10. 3 .

10

 

PCM Encoding - : Message To CH 0 0, IN , CLK

PCM Decoding - : PCM data - , CLK , Reconstruction : 3kHz LPF 3 ,

Recovered message To CH 1 1

 

57. 2 (. 55).

58. .

59. Timebase ( ) 50/.

60. .

61. .

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62. (Amplifier) . 11.

11

 

63. Gain .

64. ,

65. .

66. Gain , .

67. , .

68.

69. .

 

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12

 

71. Timebase ( ) 2 /.

72. ,

 


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