82575EB Datasheet, PDF (55/62 Pages) Intel Corporation – Intel® 82575EB Gigabit Ethernet Controller Datasheet

Crystal Requirements — Intel^® 82575EB Gigabit Ethernet Controller
7.0 Crystal Requirements
Table 20.
Reference Crystal Specification Requirements
Parameter Name
Frequency
Vibration mode
Cut
Operating /Calibration Mode
Frequency Tolerance @25°C
Temperature Tolerance
Operating Temperature
Non Operating Temperature Range
Equivalent Series Resistance (ESR)
Load Capacitance
Shunt Capacitance
Pullability from Nominal Load Capacitance
Max Drive Level
Insulation Resistance
Aging
Differential board capacitance^*
Board Capacitance
External Capacitors
Board Resistance
Symbol
f_o
f/f_o @25°C
f/f_o
T_opr
T_opr
R_s
C_load
C_o
f/C_load
D_L
IR
f/f_o
C_D
C_s
C₁, C₂
R_s
Recommended Value
25.000 [MHz]
Fundamental
AT
Parallel
±30 [ppm]
±30 [ppm]
-20 to +70 [°C]
-40 to +90 [°C]
50 [Ù] maximum
20 [pF] (max 24pF)
6 [pF] maximum
15 [ppm/pF] maximum
0.5 [mW]
500 [M] minimum
±5 [ppm/year[
2 [pF]
4 [pF]
27 [pF]
0.1 []
Conditions
@25 [°C]
@25 [°C]
@25 [MHz]
@ 100V DC
317679-004
Revision: 2.11
January 2011
Intel^® 82575EB Gigabit Ethernet Controller
Datasheet
55