Intel Core™2 Extreme Processor QX6800 (8M Cache, 2.93 GHz, 1066 MHz FSB) HH80562XH0778M Data Sheet
Product codes
HH80562XH0778M
Electrical Specifications
28
Datasheet
2.7.4
BCLK[1:0] Specifications
Table 16.
Front Side Bus Differential BCLK Specifications
Symbol
Parameter
Min
Typ
Max
Unit Figure Notes
1
NOTES:
1.
Unless otherwise noted, all specifications in this table apply to all processor frequencies.
V
L
Input Low Voltage
-0.30
N/A
N/A
V
2
2.
"Steady state" voltage, not including overshoot or undershoot.
V
H
Input High Voltage
N/A
N/A
1.15
V
V
CROSS(abs)
Absolute Crossing Point
0.300
N/A
0.550
V
3,4, 5
3.
Crossing voltage is defined as the instantaneous voltage value when the rising edge of BCLK0
equals the falling edge of BCLK1.
4.
V
Havg
is the statistical average of the V
H
measured by the oscilloscope
.
5.
The crossing point must meet the absolute and relative crossing point specifications
simultaneously.
ΔV
CROSS
Range of Crossing Points
N/A
N/A
0.140
V
-
V
OS
Overshoot
N/A
N/A
1.4
V
6
6.
Overshoot is defined as the absolute value of the maximum voltage. Undershoot is defined as
the absolute value of the minimum voltage.
V
US
Undershoot
-0.300 N/A
N/A
V
V
SWING
Differential Output Swing
0.300
N/A
N/A
V
7
7.
Measurement taken from differential waveform.
Figure 3.
Differential Clock Waveform
Figure 4.
Differential Clock Crosspoint Specification
High Time
Period
V
CROSS
CLK 1
CLK 0
Low Time
V
CROSS
Min
300 mV
V
CROSS
Max
500 mV
median
V
CROSS
median
V
CROSS
Median + 75 mV
Median - 75 mV
V
CROSS
660 670 680 690 700 710 720 730 740 750 760 770 780 790 800 810 820 830 840 850
200
250
300
350
400
450
500
550
600
650
VHavg (mV)
Cro
s
sing
Point
(m
V)
550 mV
300 mV
300 + 0.5 (VHavg - 700)
550 + 0.5 (VHavg - 700)