5.0Gbps PCI Express Passive Switches

(TA = +25°C, unless otherwise noted.)

EYE DIAGRAM

(V+ = 1.8V, f = 1.25GHz, 600mVP-PPRBS SIGNAL, RS = RL = 50Ω)

VCOM_+

 

toc08

 

 

MAX4888A/89A

50mV/div

VCOM_-

50ps/div

*PRBS = PSEUDORANDOM BIT SEQUENCE

= GEN 1, 2.5Gbps; U1 = 400ps

EYE DIAGRAM

(V+ = 1.8V, f = 2.5GHz,

600mVP-PPRBS SIGNAL, RS = RL = 50Ω)††

VCOM_+

 

toc11

 

 

MAX4888A/89A

50mV/div

VCOM_-

25ps/div

*PRBS = PSEUDORANDOM BIT SEQUENCE †† = GEN 11, 5.0Gbps; U1 = 200ps

Typical Operating Characteristics (continued)

 

 

EYE DIAGRAM

 

 

EYE DIAGRAM

 

 

(V+ = 2.5V, f = 1.25GHz,

 

 

(V+ = 3.3V, f = 1.25GHz,

 

600mVP-PPRBS SIGNAL, RS = RL = 50Ω)

 

600mVP-PPRBS SIGNAL, RS = RL = 50Ω)

VCOM_+

 

 

toc09

VCOM_+

 

 

toc10

 

 

 

 

 

 

 

MAX4888A/89A

 

 

 

MAX4888A/89A

50mV/div

 

 

 

50mV/div

 

 

 

VCOM_-

 

VCOM_-

 

 

50ps/div

 

50ps/div

 

*PRBS = PSEUDORANDOM BIT SEQUENCE

 

*PRBS = PSEUDORANDOM BIT SEQUENCE

 

= GEN 1, 2.5Gbps; U1 = 400ps

 

= GEN 1, 2.5Gbps; U1 = 400ps

 

EYE DIAGRAM

 

EYE DIAGRAM

 

(V+ = 2.5V, f = 2.5GHz,

 

(V+ = 3.3V, f = 2.5GHz,

600mVP-PPRBS SIGNAL, RS = RL = 50Ω)††

600mVP-PPRBS SIGNAL, RS = RL = 50Ω)††

VCOM_+

 

toc12

VCOM_+

 

toc12

 

 

 

 

MAX4888A/89A

 

 

MAX4888A/89A

50mV/div

 

 

50mV/div

 

 

VCOM_-

 

VCOM_-

 

 

25ps/div

 

25ps/div

 

*PRBS = PSEUDORANDOM BIT SEQUENCE

 

*PRBS = PSEUDORANDOM BIT SEQUENCE

 

†† = GEN 11, 5.0Gbps; U1 = 200ps

 

†† = GEN 11, 5.0Gbps; U1 = 200ps

MAX4888A/MAX4889A

_______________________________________________________________________________________ 5

Page 5
Image 5
Maxim MAX4888A manual EYE Diagram, + = 1.8V, f = 2.5GHz 600mVP-PPRBS SIGNAL, RS = RL = 50Ω††