XC4VLX100-11FF1148C Datasheet, PDF (10/58 Pages) Xilinx, Inc – DC and Switching Characteristics

Virtex-4 FPGA Data Sheet: DC and Switching Characteristics
Extended LVDS DC Specifications (LVDSEXT_25)
Table 10: Extended LVDS DC Specifications
Symbol
DC Parameter
Conditions
V_CCO
V_OH
V_OL
V_ODIFF
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
R_T = 100Ω across Q and Q signals
R_T = 100Ω across Q and Q signals
R_T = 100Ω across Q and Q signals
V_OCM
V_IDIFF
Output Common-Mode Voltage
R_T = 100Ω across Q and Q signals
Differential Input Voltage^(1,2)
(Q – Q), Q = High (Q – Q), Q = High
Common-mode input voltage = 1.25V
V_ICM Input Common-Mode Voltage
Differential input voltage = ±350 mV
Notes:
1. Recommended input maximum voltage not to exceed V_CC0 + 0.2V.
2. Recommended input minimum voltage not to go below –0.5V.
Min
2.38
–
0.715
440
1.125
100
0.3
Typ
2.5
–
–
–
1.250
–
1.2
Max
2.63
1.785
–
820
1.375
1000
2.2
Units
V
V
V
mV
V
mV
V
LVPECL DC Specifications (LVPECL_25)
These values are valid when driving a 100Ω differential load
only, i.e., a 100Ω 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 com-
Table 11: LVPECL DC Specifications
Symbol
DC Parameter
V_OH
Output High Voltage
V_OL
Output Low Voltage
V_ICM
V_IDIFF
Input Common-Mode Voltage
Differential Input Voltage^(1,2)
Notes:
1. Recommended input maximum voltage not to exceed V_CC0 + 0.2V.
2. Recommended input minimum voltage not to go below –0.5V.
mon-mode ranges. Table 11 summarizes the DC output
specifications of LVPECL. For more information on using
LVPECL, see the Virtex-4 FPGA User Guide: Chapter 6,
SelectIO Resources.
Min
V_CC – 1.025
V_CC – 1.81
0.6
0.100
Typ
1.545
0.795
Max
V_CC – 0.88
V_CC – 1.62
2.2
1.5
Units
V
V
V
V
DS302 (v3.7) September 9, 2009
www.xilinx.com
Product Specification
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