Owner manual
Two-Lane and Four-Lane DisplayPort Passive
Switches with Separate AUX/HPD Control
MAX4998/MAX14998
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3.3V Q10%, T
A
= T
MIN
to T
MAX,
unless otherwise noted. Typical values are at V
DD
= +3.3V, T
A
= +25NC, unless otherwise
noted.) (Note 3)
Note 3: All units are 100% production tested at T
A
= +85NC. Limits over the operating temperature range are guaranteed by
design and characterization and are not production tested.
Note 4: DR
ON
= 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
t
r
< 5ns
t
f
< 5ns
50%
V
IL
LOGIC
INPUT
SEL
R
L
COM_
GND
SEL_
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
V
N_
V
IH
0V
0V
NO_ OR NC_
0.9 x V
OUT
0.9 x V
OUT
0.9 x V
OUT
0.9 x V
OUT
t
ON_SEL
t
OFF_SEL
V
OUT
SWITCH
OUTPUT
COM_
SWITCH
OUTPUT
COM_
LOGIC
INPUT
SEL_
V
DD
C
L
+3.3V
V
OUT
t
ON_SEL
t
OFF_SEL
MAX4998/MAX14998
V
OUT
= V
N_
R
L
R
L
+ R
ON
( )
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SEL1 and SEL2 to Switch
Turn-Off Time
t
OFF_SEL
V
NO_
or V
NC_
= +1.0V, R
L
= 50I,
C
L
= 100pF (Figure 1)
5 50 ns
Differential Insertion Loss S
DD21
f = 0.8GHz (Figure 2) -0.67
dB
f = 1.35GHz (Figure 2) -0.95
Differential Crosstalk S
DDCTK
f = 0.8GHz (Figure 2) -37
dB
f = 1.35GHz (Figure 2) -34
Differential Return Loss S
DD11
f = 0.8GHz (Figure 2) -20
dB
f = 1.35GHz (Figure 2) -14
Signal Data Rate BR
R
S
= R
L
= 100I balanced
17 Gbps
Differential -3dB Bandwidth f
-3BW
R
S
= R
L
= 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
IH
1.4 V
Input Logic-Low V
IL
0.5 V
Input Logic Hysteresis V
HYST
100 mV
Input Leakage Current I
IN
V
SEL_
= 0V or V
DD
-1 +1
FA
POWER SUPPLY
Power-Supply Range V
DD
3.0 3.6 V
V
DD
Supply Current I
DD
V
SEL_
= 0V or V
DD
500 850
FA