DS083 Datasheet, PDF (78/430 Pages) Xilinx, Inc – Summary of Features

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Virtex-II Pro and Virtex-II Pro X Platform FPGAs: DC and Switching Characteristics
LVDS DC Specifications (LVDS_25)
Table 8: LVDS DC Specifications
DC Parameter
Symbol
Supply Voltage
Output High Voltage for Q and Q
Output Low Voltage for Q and Q
Differential Output Voltage (Q – Q),
Q = High (Q – Q), Q = High
V_CCO
V_OH
V_OL
V_ODIFF
Output Common-Mode Voltage
Differential Input Voltage (Q – Q),
Q = High (Q – Q), Q = High
V_OCM
V_IDIFF
Input Common-Mode Voltage
V_ICM
Conditions
R_T = 100 Ω across Q and Q signals
R_T = 100 Ω across Q and Q signals
R_T = 100 Ω across Q and Q signals
R_T = 100 Ω across Q and Q signals
Common-mode input voltage = 1.25V
Differential input voltage = ±350 mV
Min Typ Max Units
2.38 2.5 2.63
V
1.602
V
0.898
V
247
350
454
mV
1.125 1.250 1.375
V
100
350
600
mV
0.3
1.2
2.2
V
Extended LVDS DC Specifications (LVDSEXT_25)
Table 9: Extended LVDS DC Specifications
DC Parameter
Symbol
Conditions
Supply Voltage
Output High Voltage for Q and Q
Output Low Voltage for Q and Q
Differential Output Voltage (Q – Q),
Q = High (Q – Q), Q = High
V_CCO
V_OH
V_OL
R_T = 100 Ω across Q and Q signals
R_T = 100 Ω across Q and Q signals
V_ODIFF R_T = 100 Ω across Q and Q signals
Output Common-Mode Voltage
Differential Input Voltage (Q – Q),
Q = High (Q – Q), Q = High
V_OCM
V_IDIFF
R_T = 100 Ω across Q and Q signals
Common-mode input voltage = 1.25V
Input Common-Mode Voltage
V_ICM Differential input voltage = ±350 mV
Min Typ Max Units
2.38 2.5 2.63
V
1.785
V
0.715
V
440
820
mV
1.125 1.250 1.375
V
100
1000 mV
0.3
1.2
2.2
V
LVPECL DC Specifications (LVPECL_25)
These values are valid when driving a 100 Ω differential
load only, i.e., a 100 Ω resistor between the two receiver
pins. The V_OH levels are 200 mV below standard LVPECL
levels and are compatible with devices tolerant of lower
common-mode ranges. Table 10 summarizes the DC output
specifications of LVPECL. For more information on using
LVPECL, see the Virtex-II Pro Platform FPGA User Guide.
Table 10: LVPECL DC Specifications
V_CCO = 2.375V
DC Parameter
Min
Max
V_CCO = 2.5V
Min
Max
V_CCO = 2.625V
Min
Max
Units
V_OH
V_OL
V_IH
V_IL
Differential Input Voltage
1.35
1.495
1.475
1.62
1.6
1.745
V
0.565
0.755
0.69
0.88
0.815
1.005
V
0.8
2.0
0.8
2.0
0.8
2.0
V
0.5
1.7
0.5
1.7
0.5
1.7
V
0.100
1.5
0.100
1.5
0.100
1.5
V
DS083 (v4.7) November 5, 2007
Product Specification
www.xilinx.com
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