LT1675-1 データシートの表示（PDF） - Linear Technology

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LT1675-1

250MHz, Triple and Single RGB Multiplexer with Amplifiers

Linear Technology 

APPLICATIONS INFORMATION

750Ω

n...

75Ω

OFF

750Ω

750Ω

750Ω

OFF

750Ω

ON

750Ω

75Ω

⇒ 75Ω

1575 R2

n – 1 75Ω

R1

75Ω CABLE

n = NUMBER OF LT1675s

IN PARALLEL

75Ω

1675 F05

Figure 5. Off Channels Load the Cable Termination

with 1575Ω Each

LT1675/LT1675-1

R1

AV = 2

75Ω

R2

LT1675 #1

ENABLE

R3

AV = +2

75Ω

RED

OUT

75Ω

R4

LT1675 #2

ENABLE

CHIP

SELECT

74HC04

1675 F06

Figure 6. Two LT1675s Build a 4-Input RGB Router

1V

RED 1

INPUT

0V

1V

RED

OUTPUT

0V

500mV/DIV

500mV/DIV

CHIP SELECT = 0V, IC #2 DISABLED

1675 F07

Figure 7. 4-Input Router Response

CHIP 5V

SELECT

0V

RED 0V

OUTPUT

5V/DIV

1V/DIV

RED 1 INPUT = 0V

RED 3 INPUT = UNCORRELATED SINEWAVE

1675 F08

Figure 8. 4-Input Router Toggling

16751fb

11

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