MC13081XB datasheet(6/20 Pages) MOTOROLA

Il numero della parte	MC13081XB

Spiegazioni elettronici	Multimode Color Monitor Horizontal, Vertical, and Video Combination Processor

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Produttore elettronici	MOTOROLA [Motorola, Inc]

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MC13081X

6

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS (continued) (TA = 25°C, VCC = 8.0 Vdc)

Characteristic

Unit

Max

Typ

Min

Condition

VIDEO AMPLIFIERS

Emitter DC Level

39, 34, 31

Vdc

Minimum Brightness

V19 = 0 V

–

1.0

–

Nominal Brightness

V19 = 2.5 V

1.25

1.5

1.75

Maximum Brightness

V19 = 5.0 V

–

2.0

–

Crosstalk, Amplifier to Amplifier

Frequency = 10 MHz

39, 34, 31

–

34

–

dB

Output Rise Time

Vin = 0.7 Vpp; Vout = 3.0 Vpp

39, 34, 31

–

5.0

–

ns

p

Output Fall Time

in

pp; out

pp

,,

–

5.0

–

PIN FUNCTION DESCRIPTION

Name

Equivalent Internal Circuit

Description

1

Vertical

Oscillator

Capacitor

Vertical

Ramp Gen

VCC

Switching

Control

1.0 k

5.0 V

I2

2.5 k

I2

10.7

This capacitor should be 100 nF film type to give good

temperature stability.

2

Vertical Hold

Control

1

2

R2

C1

I2

21.3

The potentiometer at Pin 2 adjusts the free running

frequency of the oscillator. It should normally be set

for about 55 Hz with no vertical signal input such that

it will lock to 60 Hz.

3

Vertical

Integrator

Capacitor

ICIS

VCC

C3

Switching

Control

ISID

1.0 k

3

The capacitor on this pin integrates the sync pulses

with a long time constant. C3 is typically 0.01

µF.

4

Vertical TTL

Sync

To Logic

2.0 V

4

5.0 V

22 k

10 k

Sync

Input

Vertical TTL Sync input. The input threshold voltage

at this pin is 2.0 V.

5

Horizontal TTL

Sync

To Logic

2.0 V

5

5.0 V

22 k

10 k

Sync

Input

Composite or Horizontal TTL Sync input. The input

threshold voltage at this pin is 2.0 V.

6

Composite

Video Input

5.0 V

10 k

68 k

To Sync

Separator

1.0 k

0.1

Comp

Input

6

This pin requires a coupling of min 100 nF. The

composite sync input should consist of –VE sync

signal only with amplitude > 500 mVpp.

The source impedance of the sync signal should be

<1.0 k

Ω.

Sync information at Pin 5 will override this pin, but

signals at Pin 4 will not.

Minimum pulse width is 2.0

µs.

7, 8

N/C

These two pins are internally connected to each other,

and nothing else.

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