Rainbow-electronics MAX14998 Manual de usuario descargar pdf (Pagina 4)

Two-Lane and Four-Lane DisplayPort Passive

Switches with Separate AUX/HPD Control

MAX4998/MAX14998

4 ______________________________________________________________________________________

Test Circuits/Timing Diagrams (continued)

Figure 2. Differential On-Loss, Differential Off-Isolation, and Differential Crosstalk

COM_+

COM_-

+3.3V

NC_+

NC_-

SEL1

GND

DIFFERENTIAL INSERTION LOSS/DIFFERENTIAL RETURN LOSS

PORT 1

PORT 2

PORT 3

PORT 4

NETWORK

ANALYZER

0.1µF

IN+

IN-

OUT+

OUT-

NO_+

NO_-

SEL20V

DIFFERENTIAL INSERTION LOSS = 20log

( )

OUT+

- V

OUT-

IN+

- V

IN-

50Ω

MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.

DIFFERENTIAL OFF-ISOLATION IS MEASURED BETWEEN COM_ AND “OFF” NO_ OR NC_ TERMINAL ON EACH SWITCH.

DIFFERENTIAL ON-LOSS IS MEASURED BETWEEN COM_ AND “ON” NO_ OR NC_ TERMINAL ON EACH SWITCH.

DIFFERENTIAL CROSSTALK IS MEASURED BETWEEN ANY TWO PAIRS.

MAX4998

MAX14998

COM_+

COM_-

+3.3V

NC_+

NC_-

SEL1

GND

DIFFERENTIAL OFF-ISOLATION

PORT 1

PORT 2

PORT 3

PORT 4

NETWORK

ANALYZER

0.1µF

IN+

IN-

OUT+

OUT-

NO_+

NO_-

SEL2V

DIFFERENTIAL OFF-ISOLATION = 20log

( )

OUT+

- V

OUT-

IN+

- V

IN-

50Ω

MAX4998

MAX14998

COM_+

COM_-

+3.3V

NO_+/NC_+

NO_-/NC_-

SEL1

GND

DIFFERENTIAL CROSSTALK

PORT 1

PORT 2

PORT 3

PORT 4

NETWORK

ANALYZER

0.1µF

IN+

IN-

OUT+

OUT-

NO_+/NC_+

NO_-/NC_-

SEL20V OR V

0V OR V

DIFFERENTIAL CROSSTALK = 20log

( )

OUT+

- V

OUT-

IN+

- V

IN-

50Ω

COM_+

COM_-

50Ω

MAX4998

MAX14998

1 2 3 4 5 6 7 8 9 10

MAX4998/MAX14998 1

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Rainbow-electronics MAX14998 Manual de usuario Pagina 4

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