MC13081X datasheet(10/20 Pages) MOTOROLA

部件名	MC13081X

功能描述	Multimode Color Monitor Horizontal, Vertical, and Video Combination Processor

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制造商	MOTOROLA [Motorola, Inc]

网页	http://www.freescale.com

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10 / 20 page

MC13081X

10

MOTOROLA ANALOG IC DEVICE DATA

PIN FUNCTION DESCRIPTION (continued)

Description

Equivalent Internal Circuit

Name

48

Vertical Ramp

Output

VCC

48

10 k

To Vertical

Deflection

Circuit

2.0 V, 5.0 V

Trip Pts

Vertical

Oscillator

Vertical

Ramp Generator

This ramp signal drives the external vertical output

devices.

Voltage ramps from 2.0 V to less than 5.0 V,

depending on frequency and components at Pins 51

and 52.

Loading on this pin must be > 30 k

Ω to avoid

distorting or clipping the ramp.

49, 50

N/C

These two pins are internally connected to each other,

and nothing else.

51

Vertical Ramp

Capacitor

I

VCC

1.0 k

5.7

200

Ramp Output

Buffer

Switching

Control

Vertical

I

2

The slope of the output ramp is determined by the

components at Pins 51 and 52.

The resistor at Pin 52 sets the charging current of the

capacitor, and therfore the vertical height of the

picture.

The linearity of the ramp can be modified by external

52

Vertical Size

Control

52

51

C51

Vertical

Oscillator

The linearity of the ramp can be modified by external

feedback.

53

Vertical Sync

Polarity

Detector

5.0 V

53 54

The output goes low when the vertical sync input

polarity is positive. It goes high when the vertical sync

input polarity is negative.

54

Horizontal

Sync Polarity

Detector

53, 54

The output goes low when the horizontal sync input

polarity is positive. It goes high when the horizontal

sync input polarity is negative.

55

Horizontal

Position

Control

55

5.0 V

Ramp 1

25 k

15 k

10 k

5.0 V

R55

Varying the voltage at this pin will change the

horizontal position of the picture.

Input impedance is

≈ 31 kΩ.

56

Timebase

VCC2

Connected to a 8.0 V,

±5%, dc supply. Decoupling is

required at this pin.

类似零件编号 - MC13081X

制造商	部件名	数据表	功能描述
Motorola, Inc	MC13001X	272Kb / 10P	Monomax Black and White TV Subsystem
	MC13001XP	272Kb / 10P	Monomax Black and White TV Subsystem
	MC13007X	272Kb / 10P	Monomax Black and White TV Subsystem
	MC13007XP	272Kb / 10P	Monomax Black and White TV Subsystem
	MC13017	84Kb / 4P	NTSC/PAL CHROMA 10 COLOR TV and TIMEBASE PROCESSOR

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类似说明 - MC13081X

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