ICS954119 Datasheet, PDF (14/17 Pages) Integrated Circuit Systems – Programmable Timing Control Hub™ for Next Gen P4™ processor

Integrated
Circuit
Systems, Inc.
ICS954119
Advance Information
Electrical Characteristics - SRC/SATA/PCIEX 0.7V Current Mode Differential Pair
PARAMETER
SYMBOL
CONDITIONS*
MIN
TYP
MAX
UNITS
Current Source Output
Impedance
Zo
V_O = V_x
3000
Ω
Voltage High
VHigh
Statistical measurement on
660
850
mV
Voltage Low
VLow
single ended signal
-150
150
mV
Max Voltage
Min Voltage
Vovs
Vuds
Measurement on single ended
signal using absolute value.
-300
1150
mV
mV
Crossing Voltage (abs)
Crossing Voltage (var)
Long Accuracy
Vx(abs)
d-Vx
ppm
Variation of crossing over all
edges
see Tperiod min-max values
250
-300
550
mV
140
mV
300
ppm
Average period
Tperiod
100.00MHz nominal
100.00MHz spread
9.9970
9.9970
10.0030
ns
10.0533
ns
Absolute min period
Tabsmin 100.00MHz nominal/spread 9.8720
ns
Rise Time
t_r
V_OL = 0.175V, V_OH = 0.525V
175
700
ps
Fall Time
t_f
V_OH = 0.525V V_OL = 0.175V
175
700
ps
Rise Time Variation
d-t_r
V_OL = 0.175V, V_OH = 0.525V
125
ps
Fall Time Variation
Duty Cycle
d-t_f
V_OH = 0.525V V_OL = 0.175V
d_t3
Measurement from differential
wavefrom
45
125
ps
55
%
Skew
Jitter, Cycle to cycle
t_sk3
t_jcyc-cyc
V_T = 50%
Measurement from differential
wavefrom
250
ps
125
ps
*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
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.}
Notes
1
1,3
1,3
1
1
1
1
1,2
2
2
1,2
1
1
1
1
1
1
1
Electrical Characteristics - PCICLK/PCICLK_F
PARAMETER
SYMBOL
CONDITIONS*
MIN
TYP
MAX
Output Impedance
R_DSP
V_O = V_DD*(0.5)
12
Output High Voltage
V_OH
I_OH = -1 mA
2.4
Output Low Voltage
V_OL
I_OL = 1 mA
Output High Current
I_OH
V _OH @MIN = 1.0 V
-33
V_OH@MAX = 3.135 V
Output Low Current
I_OL
V_OL @ MIN = 1.95 V
V_OL @ MAX = 0.4 V
30
Edge Rate
t_slewr/f
Rising/Falling edge rate
1
Rise Time
t_r
V_OL = 0.4 V, V_OH = 2.4 V
0.5
Fall Time
t_f
V_OH = 2.4 V, V_OL = 0.4 V
0.5
Duty Cycle
d_t1
V_T = 1.5 V
45
Group Skew
t_skew
V_T = 1.5 V
Jitter, Cycle to cycle
t_jcyc-cyc
V_T = 1.5 V
*TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%, CL = 20 pF with Rs = 7Ω (unless otherwise specified)
1_{Guaranteed by design and characterization, not 100% tested in production.}
55
0.55
-33
38
4
2
2
55
500
250
UNITS
Ω
V
V
mA
mA
mA
mA
V/ns
ns
ns
%
ps
ps
NOTES
1
1
1
1
1
1
1
1
1
1
1
1
1
0875—05/24/04
14