BA7780 datasheet(4/10 Pages) ROHM

Il numero della parte	BA7780

Spiegazioni elettronici	Stereo zoom microphone amplifier for camcorders

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Produttore elettronici	ROHM [Rohm]

Homepage	http://www.rohm.com

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4

Video ICs

BA7780KV

Pin No.

43

MODE 43

—

25k

Ω

44

EXT IN L

1.65

75k

Ω

45

VREG L

2.5

C

46

INT IN L

1.65

75k

Ω

47

SUB IN L

1.65

100k

Ω

48

BG

1.25

10k

Ω

49

GND L

——

50

MIX 1 IN L

1.65

100k

Ω

51

GZ CONT

—

50k

Ω

52

SUB INV2 OUT

1.65

EF (P - P)

53

SUB INV2 IN

1.65

B

54

SUB BUF2 OUT

1.65

EF (P - P)

55

SUB VCA OUT

1.65

EF (P - P)

56

SUB VCA IN

1.65

100k

Ω

57

MIX2 OUT

1.65

EF (P - P)

58

SUB BUF2 IN

1.65

100k

Ω

59

SUB INV1 OUT

1.65

EF (P - P)

60

SUB BUF1 OUT

1.65

EF (P - P)

61

SUB BUF1 IN

1.65

100k

Ω

62

MIX1 OUT

1.65

EF (P - P)

63

MIX1 IN R

1.65

100k

Ω

64

GND R

——

Pin voltage (V)

Format

Function

Pin name

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.

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