Datasheet
MAX4928A/MAX4928B
DisplayPort/PCIe Passive Switches
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS
MIN TYP MAX UNITS
D_ or TX_/
HPD_ or RX1_/
AUX_ or RX0_ Off-Leakage
Current
I
D_ (OFF)
I
TX_ (OFF)
I
HPD_ (OFF)
I
RX1_ (OFF)
I
AUX_ (OFF)
I
RX0_ (OFF)
V
D D
= + 3.6V , V
I N _
= V
X _
= V
OU T _
= 0V ,
+ 1.2V ; V
D _
or V
T X _
, V
H P D _
or V
R X 1 _
,
V
A U X _
or V
R X 0 _
= + 1.2V , 0V
-1 +1
IN_/X_/OUT_ On-Leakage
Current
I
IN_ (ON)
I
X_ (ON)
I
OUT_ (ON)
V
D D
= + 3.6V , V
I N _
= V
X _
= V
OU T _
= 0V ,
+ 1.2V ; V
D _
or V
T X _
= V
I N _
or
unconnected , V
H P D _
or V
R X 1 _
= V
X _
or
unconnected , V
A U X _
or V
R X 0 _
= V
OU T _
or unconnected
-1 +1
µA
DIGITAL SIGNALS
SEL to Switch Turn-On Time t
ON_SEL
V
D_
or V
TX_
= +1.0V, R
L
= 50Ω,
V
HPD_
or V
RX1_
= +1.0V, R
L
= 50Ω,
V
AUX_
or V
RX0_
= +1.0V, R
L
= 50Ω,
LE = V
DD
, C
L
= 100pf (Figure 1)
55 120 ns
SEL to Switch Turn-Off Time t
OFF_SEL
V
D_
or V
TX_
= +1.0V, R
L
= 50Ω,
V
HPD_
or V
RX1_
= +1.0V, R
L
= 50Ω,
V
AUX_
or V
RX0_
= +1.0V, R
L
= 50Ω,
LE = V
DD
, C
L
= 100pf (Figure 1)
850ns
LE Setup Time
SEL to LE
t
SU
V
D_
or V
TX_
= +1.0V, R
L
= 50Ω,
V
HPD_
or V
RX1_
= +1.0V, R
L
= 50Ω,
V
AUX_
or V
RX0_
= +1.0V, R
L
= 50Ω
(Figure 1)
2ns
LE Hold Time
SEL to LE
t
HOLD
V
D_
or V
TX_
= +1.0V, R
L
= 50Ω,
V
HPD_
or V
RX1_
= +1.0V, R
L
= 50Ω,
V
AUX_
or V
RX0_
= +1.0V, R
L
= 50Ω,
(Figure 1)
2ns
LE Minimum Pulse-Width Low t
W
V
D_
or V
TX_
= +1.0V, R
L
= 50Ω,
V
HPD_
or V
RX1_
= +1.0V, R
L
= 50Ω,
V
AUX_
or V
RX0_
= +1.0V, R
L
= 50Ω
(Figure 1)
40 ns
f = 2.5GHz
-1.5
f = 5.0GHz
-3.3
Differential Insertion Loss
(Figure 2)
S
DD21
f = 7.5GHz
-4.9
dB
f = 2.5GHz -40
f = 5.0GHz -23Differential Crosstalk (Figure 2) S
DDCTK
f = 7.5GHz -28
dB
Differential Off-Isolation S
DD21_OFF
f = 3.0GHz -22 dB
f = 2.8GHz -21
f = 5.0GHz -8
Differential Return Loss (Figure 2)
S
DD11
f = 7.5GHz -7
dB
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3.3V ±10%, T
A
=T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
DD
= +3.3V, T
A
= +25°C, unless otherwise
noted.) (Note 3)