Rainbow-electronics MAX14998 Manual do Utilizador descarregar pdf (Página 3)

Two-Lane and Four-Lane DisplayPort Passive

Switches with Separate AUX/HPD Control

MAX4998/MAX14998

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= +3.3V Q10%, T

= T

MIN

to T

MAX,

unless otherwise noted. Typical values are at V

= +3.3V, T

= +25NC, unless otherwise

noted.) (Note 3)

Note 3: All units are 100% production tested at T

= +85NC. Limits over the operating temperature range are guaranteed by

design and characterization and are not production tested.

Note 4: DR

= R

ON(MAX)

- R

ON(MIN)

Note 5: Guaranteed by design. Not production tested.

Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the

specified analog signal range.

Test Circuits/Timing Diagrams

Figure 1. Switching Time

< 5ns

50%

LOGIC

INPUT

SEL

COM_

GND

SEL_

INCLUDES FIXTURE AND STRAY CAPACITANCE.

NO_ OR NC_

0.9 x V

OUT

0.9 x V

OUT

0.9 x V

OUT

0.9 x V

OUT

ON_SEL

OFF_SEL

OUT

SWITCH

OUTPUT

COM_

SWITCH

OUTPUT

COM_

LOGIC

INPUT

SEL_

+3.3V

OUT

ON_SEL

OFF_SEL

MAX4998/MAX14998

OUT

= V

+ R

( )

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SEL1 and SEL2 to Switch

Turn-Off Time

OFF_SEL

NO_

or V

NC_

= +1.0V, R

= 50I,

= 100pF (Figure 1)

5 50 ns

Differential Insertion Loss S

DD21

f = 0.8GHz (Figure 2) -0.67

f = 1.35GHz (Figure 2) -0.95

Differential Crosstalk S

DDCTK

f = 0.8GHz (Figure 2) -37

f = 1.35GHz (Figure 2) -34

Differential Return Loss S

DD11

f = 0.8GHz (Figure 2) -20

f = 1.35GHz (Figure 2) -14

Signal Data Rate BR

= R

= 100I balanced

17 Gbps

Differential -3dB Bandwidth f

-3BW

= R

= 100I balanced

8.5 GHz

Differential Off-Isolation S

DD21_OFF

f = 1.35GHz (Figure 2) -28 dB

LOGIC INPUT (SEL1, SEL2)

Input Logic-High V

1.4 V

Input Logic-Low V

0.5 V

Input Logic Hysteresis V

HYST

100 mV

Input Leakage Current I

SEL_

= 0V or V

-1 +1

POWER SUPPLY

Power-Supply Range V

3.0 3.6 V

Supply Current I

SEL_

= 0V or V

500 850

1 2 3 4 5 6 7 8 9 10

MAX4998/MAX14998 1

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