243658-020 Datasheet, PDF (56/128 Pages) Intel Corporation – Intel Celeron Processor up to 1.10 GHz

Intel^® Celeron^® Processor up to 1.10 GHz
Table 33. AGTL+ Signal Groups Ringback Tolerance Guidelines for Edge Finger
Measurement on the S.E.P. Package
T# Parameter
α’: Overshoot
τ’: Minimum Time at High
ρ’: Amplitude of Ringback
φ’: Final Settling Voltage
δ’: Duration of Squarewave Ringback
Min
100
1.5
–250
250
N/A
Unit
Figure
Notes
mV
13
ns
13
4
mV
13
4, 5
mV
13
4
ns
13
NOTES:
1. Unless otherwise noted, all guidelines in this table apply to all Celeron processor frequencies.
2. Guidelines are for the edge rate of 0.3 – 0.8 V/ns. See Figure 13 for the generic waveform.
3. All values specified by design characterization.
4. This guideline applies to Intel Celeron processors operating with a 66 MHz system bus only.
5. Ringback below VREF + 250 mV is not supported.
Figure 13. Low to High AGTL+ Receiver Ringback Tolerance
V_REF +0.2
V_REF
V_REF –0.2
V_start
τ
α
ρ
δ
φ
0.7V Clk Ref
Clock
Note: High to Low case is analogous.
Time
56
Datasheet