BA7780 データシートの表示（PDF） - ROHM Semiconductor

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BA7780

Stereo zoom microphone amplifier for camcorders

ROHM Semiconductor 

Video ICs

Pin No.

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

Pin name

MODE 43

EXT IN L

VREG L

INT IN L

SUB IN L

BG

GND L

MIX 1 IN L

GZ CONT

SUB INV2 OUT

SUB INV2 IN

SUB BUF2 OUT

SUB VCA OUT

SUB VCA IN

MIX2 OUT

SUB BUF2 IN

SUB INV1 OUT

SUB BUF1 OUT

SUB BUF1 IN

MIX1 OUT

MIX1 IN R

GND R

Function

Mode control 43 input

External microphone input

Regulator output

Internal microphone input

Sub microphone input

For regulator ripple filter capacitor

Left channel GND

Mixer amplifier input

Sub VCA control input

Sub inverter 2 output

Sub inverter 2 input

Sub buffer 2 output

Sub VCA output

Sub VCA input

Mixer 2 output

Sub buffer 2 input

Sub inverter 1 output

Sub buffer 1 output

Sub buffer 1 input

Mixer 1 output

Mixer 1 input

Right channel GND

∗ EF: emitter follower, P-P: push pull, B: base, and C: collector. All numerical values are standardized values.

BA7780KV

Pin voltage (V)

—

1.65

2.5

1.65

1.65

1.25

—

1.65

—

1.65

1.65

1.65

1.65

1.65

1.65

1.65

1.65

1.65

1.65

1.65

1.65

—

Format

25kΩ

75kΩ

C

75kΩ

100kΩ

10kΩ

—

100kΩ

50kΩ

EF (P - P)

B

EF (P - P)

EF (P - P)

100kΩ

EF (P - P)

100kΩ

EF (P - P)

EF (P - P)

100kΩ

EF (P - P)

100kΩ

—

4

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