MC13280AY 데이터 시트보기 (PDF) - Motorola => Freescale

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MC13280AY

80/100 MHz Video Processor

Motorola => Freescale 

MC13280AY

MC13281B MC13281A

Pin

Pin

12

16

Name

B Clamp

Capacitor

14

18

G Clamp

Capacitor

MC13280AY MC13281A/B

PIN FUNCTION DESCRIPTION (continued)

Equivalent Internal Circuit

1.2 V

Video Out

VCC

Description

A 100 nF capacitor is connected to

each of these pins.

The capacitor is used for video output

dc restoration.

17

21

R Clamp

Capacitor

13

17

Video VCC

16

20

5.0 Vref (V5)

5.0 V

10 µF

VCC

Band Gap

Regulator

R

0.8 R

Connect to 8.0 V dc supply, ±5%. The

VCC is for the video output stage. It is

internally connected to the collectors

of the output transistors.

5.0 V regulator. Minimum 10 µF

capacitor is required for noise filtering

and compensation. It can source up

to 20 mA but not sink current. Output

impedance is ≈ 10 Ω. Recommended

for use as a voltage reference only.

19

23

Clamp

VCC Vref1

Vref2

30 k

10 k

This pin is used for video clamping.

The threshold clamping level is 3.75 V.

3.75 V

20

24

Blank

VCC Vref1

Vref2

30 k

10 k

This pin is used for video blanking.

The threshold blanking level is 1.25 V.

1.25 V

MOTOROLA ANALOG IC DEVICE DATA

5

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