ICS954201 Datasheet, PDF (8/15 Pages) Integrated Circuit Systems – Programmable Timing Control Hub™ for Mobile P4™ Systems

Integrated
Circuit
Systems, Inc.
ICS954201
Electrical Characteristics - CPU 0.7V Current Mode Differential Pair
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L =2pF, R_S=33.2Ω, R_P=49.9Ω, Ι_REF = 475Ω
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS Notes
Current Source Output
Impedance
Zo
V_O = V_x
3000
Ω
1
Voltage High
Voltage Low
VHigh ^{Statistical measurement on single} 660
727
ended signal using oscilloscope
VLow
math function.
-150
-2
850
1,3
mV
150
1,3
Max Voltage
Min Voltage
Crossing Voltage (abs)
Crossing Voltage (var)
Long Accuracy
Average period
Vovs
Vuds
Vcross
(abs)
d-Vcross
ppm
T_period
Measurement on single ended
signal using absolute value.
Variation of crossing over all
edges
see Tperiod min-max values
400MHz non-spread
400MHz spread
333.33MHz non-spread
333.33MHz spread
266.66MHz non-spread
266.66MHz spread
200MHz non-spread
200MHz spread
166.66MHz non-spread
166.66MHz spread
133.33MHz non-spread
133.33MHz spread
100.00MHz non-spread
100.00MHz spread
-300
752
-21
1150
mV
1
1
250
348
550 mV 1
39
140 mV 1
-300
300 ppm 1,2
2.4993 2.4999 2.5008 ns 2
2.4993
2.5133 ns 2
2.9991 3.0000 3.0009 ns 2
2.9991
3.016 ns 2
3.7489 3.7509 3.7511 ns 2
3.7489
3.77
ns
2
4.9985 4.9998 5.0015 ns 2
4.9985
5.0266 ns 2
5.9982 6.0000 6.0018 ns 2
5.9982
6.0320 ns 2
7.4978 7.5017 7.5023 ns 2
7.4978
5.4000 ns 2
9.9970 10.0000 10.0030 ns 2
9.9970
10.0533 ns 2
400MHz non-spread
400MHz spread
2.4143 ^{2.4970 2.5750 ns 1,2}
2.5983 ns 1,2
333.33MHz non-spread
333.33MHz spread
2.9141
2.9940
3.0859
3.1010
ns
ns
1,2
1,2
266.66MHz non-spread
266.66MHz spread
3.6639
3.7430
3.8361
3.8550
ns
ns
1,2
1,2
Absolute min/max period
T_abs
200MHz non-spread
200MHz spread
4.9135 ^{4.9940 5.0865 ns 1,2}
5.1116 ns 1,2
166.66MHz non-spread
166.66MHz spread
5.9132
5.9950
6.0868
6.1170
ns
ns
1,2
1,2
133.33MHz non-spread
133.33MHz spread
7.4128 ^{7.4970 7.5873 ns 1,2}
7.6250 ns 1,2
100.00MHz non-spread
100.00MHz spread
9.9120 ^{10.0000 10.0880 ns 1,2}
10.1383 ns 1,2
Rise Time
t_r
V_OL = 0.175V, V_OH = 0.525V
175
230
700
ps 1
Fall Time
t_f
V_OH = 0.525V V_OL = 0.175V
175
206
700
ps 1
Rise Time Variation
d-t_r
15
125
ps 1
Fall Time Variation
d-t_f
14
125
ps 1
Duty Cycle
d_t3
Measurement from differential
wavefrom
45
51
55
%1
Skew
t_sk3
CPU(1:0), V_T = 50%
CPU2_ITP, V_T = 50%
7.5
100
ps 1
145
150
ps 1
Jitter, Cycle to cycle
t_jcyc-cyc
Differential waveform
measurement, CPU(1:0)
36
85
ps 1
Jitter, Cycle to cycle
t_jcyc-cyc
Differential waveform
measurement, CPU2_ITP
96
125
ps 1
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REFOUT is at 14.31818MHz}
3_{IREF = VDD/(3xRR). For RR = 475Ω (1%), IREF = 2.32mA. IOH = 6 x IREF and VOH = 0.7V @ ZO=50Ω.}
0819G—12/06/04
8