MAX4888 Maxim, MAX4888 Datasheet - Page 5

• Manufacturer Part Number: MAX4888
• Description: The MAX4888/MAX4889 high-speed passive switches route PCI Express® (PCIe) data between two possible destinations
• Manufacturer: Maxim

(T
A
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
= +25°C, unless otherwise noted.)
1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
LOGIC THRESHOLD vs. SUPPLY VOLTAGE
V
50mV/div
IH
V
V
COM_+
COM_-
SUPPLY VOLTAGE (V)
600mV
*PRBS = PSEUDORANDOM BIT SEQUENCE
†
_______________________________________________________________________________________
GEN I; 2.5Gps; UI = 400ps
V
IL
2.5Gbps PCI Express Passive Switches
P-P
(V+ = 2.5V, f = 1.25GHz,
PRBS SIGNAL, R
EYE DIAGRAM
50ps/div
S
= R
L
240
220
200
180
160
140
120
100
= 50Ω)
Typical Operating Characteristics (continued)
80
60
40
20
0
TURN-ON/-OFF TIME vs. SUPPLY VOLTAGE
1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
NO_ t
†
NC_ t
OFF
ON
NC_ t
SUPPLY VOLTAGE (V)
NO_ t
OFF
ON
50mV/div
V
V
COM_+
COM_-
600mV
*PRBS = PSEUDORANDOM BIT SEQUENCE
†
GEN I; 2.5Gps; UI = 400ps
P-P
(V+ = 3.3V, f = 1.25GHz,
PRBS SIGNAL, R
EYE DIAGRAM
50mV/div
V
V
COM_+
COM_-
50ps/div
600mV
*PRBS = PSEUDORANDOM BIT SEQUENCE
†
GEN I; 2.5Gps; UI = 400ps
S
= R
P-P
(V+ = 1.8V, f = 1.25GHz,
L
PRBS SIGNAL, R
= 50Ω)
EYE DIAGRAM
50ps/div
†
S
= R
L
= 50Ω)
†
5