EL4422C 데이터 시트보기 (PDF) - Elantec -> Intersil

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EL4422C

Multiplexed-Input Video Amplifiers

Elantec -> Intersil 

EL4421C 22C 41C 42C 43C 44C

Multiplexed-Input Video Amplifiers

Applications Information Contd

Switching Characteristics

The logic inputs work with standard TTL levels

of 0 8V or less for a logic 0 and 2 0V or more for a

logic 1 making them compatible for TTL and

CMOS drivers The ground pin is the logic

threshold biasing reference The simplified input

circuitry is shown below

Figure 1 Simplified Logic Input Circuitry

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The ground pin draws a maximum DC current of

6 mA and may be biased anywhere between

(V ) a2 5V and (Va) 3 5V The logic inputs

may range from (V )a2 5V to Va and are ad-

ditionally required to be no more negative than

V(Gnd pin) 4V and no more positive than

V(Gnd pin)a6V

For example within these constraints we can

power the EL44XX’s from a5V and a12V with-

out a negative supply by using these connections

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Figure 2 Using the EL44XX Mux Amps with a5V and a12V Supplies

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