RPIXP2850BB Intel, RPIXP2850BB Datasheet - Page 105

• Manufacturer Part Number: RPIXP2850BB
• Manufacturer: Intel

Specifications of RPIXP2850BB

• Operating Supply Voltage (typ): 1.3/1.5/2.5/3.3V
• Operating Supply Voltage (max): 1.575/2.7/3.465V
• Operating Supply Voltage (min): 1.235/2.3/3.135V
• Mounting: Surface Mount
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant

5.2.4
Figure 60.
Hardware Design Guide
LVDS Routing Example
Figure 60
This stackup yields a 92-ohm differential impedance. Note that the characteristic impedance is a
function of the PCB stackup and varies from vendor to vendor. Consult your PCB vendor for
additional information.
LVDS Routing as Signal Pairs
•
•
Unused inputs must be terminated; this can be implemented one of two ways.
Terminate unused inputs to their inactive states by using the termination guide above.
Termination rules are also discussed in detail in the MSF pin description section of the
IXP2800 and Intel® IXP2850 Network Processors Datasheet.
— A pin can be terminated to a logic 1 state by connecting directly to the 1.4-V supply or
— A pin can be terminated to a logic 0 state by connecting directly to the 1.0-V supply or
through a 400-Ω resistor to VCC25.
through a 300-Ω resistor to GND.
illustrates LVDS routing as signal pairs with 15-mil trace spacing and an 11-mil air gap.
Routed as signal pairs
15 mil trace spacing 11 mil air gap
IXP28XX Network Processor
MSF (SPI-4/CSIX/FC)
Intel®
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