CXA2125Q 查看數據表（PDF） - Sony Semiconductor

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CXA2125Q

Audio/Video Switch with Electronic Volume for 3 Scart

Sony Semiconductor 

CXA2125Q

V

+12V

+12V

+12V

+12V

+12V

+12V

+12V

BC547B

1kΩ

BC547B

1kΩ

BC547B

1kΩ

BC547B

1kΩ

BC547B

1kΩ

BC547B

1kΩ

BC547B

1kΩ

Measurement

point

+9V

51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

+12V

52

+9V 53

BC547B

75Ω 2.2µF

54

55

75Ω 2.2µF

56

57

75Ω

58

59

2.2µF

75Ω

+9V

60

61

2.2µF

75Ω

62

63

2.2µF

64

47µF

CXA2125Q

32

31

30

29

28

27

26

75Ω

25

24 2.2µF

75Ω

23

22 2.2µF

2.2µF

75Ω

21

20

+9V

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

SCL SDA

22µF

Input

signal

Fig. 2. Video system (gain, dynamic range, bandwidth, differential gain, differential phase,

crosstalk, signal to noise)

Signal applied to Pins 2, 4, 6, 8, 10, 13, 15, 17, 21, 23, 25, 55, 57, 59, 61, 63

Output signal measured from Pins 39, 41, 44, 46, 47, 48, 49

Notes) 1. All +9V supplies de-coupled close to supply pins, 20, 38, 60 with 10nF ceramic capacitor.

2. For tests requiring video measuring equipment with 75Ω input impedance, an external video line

driver or buffer is used.

3. All video outputs are loaded with emitter follower during tests.

– 14 –

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