ICS954204 Datasheet, PDF (8/16 Pages) Integrated Circuit Systems – Programmable Timing Control HubTM for Mobile P4TM Systems

Integrated
Circuit
Systems, Inc.
ICS954204
Electrical Characteristics - SRC 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
Current Source Output
Impedance
Zo¹
V_O = V_x
3000
Voltage High
VHigh Statistical measurement on single 660
750
850
Voltage Low
VLow
ended signal using oscilloscope
-150
0
150
Max Voltage
Vovs
Measurement on single ended
790
1150
Min Voltage
Vuds
signal using absolute value.
-300
0
Crossing Voltage (abs) Vcross(abs)
250
350
550
Crossing Voltage (var)
d-Vcross
Variation of crossing over all
edges
12
140
Long Accuracy
ppm
see T_period min-max values
-300
300
Average period
T_period
100.00MHz non-spread
100.00MHz spread
9.9970
10.0030
10.0533
Absolute min/max period
T_abs
100.00MHz non-spread
100.00MHz spread
9.8720
10.1280
10.1783
Rise Time
t_r
V_OL = 0.175V, V_OH = 0.525V
175
308
700
Fall Time
t_f
V_OH = 0.525V, V_OL = 0.175V
175
310
700
Rise Time Variation
d-t_r
30
125
Fall Time Variation
d-t_f
30
125
Duty Cycle
d_t3
Measurement from differential
wavefrom
45
50
55
Skew
t_sk3
V_T = 50%
100
250
Jitter, Cycle to cycle
t_jcyc-cyc
Measurement from differential
wavefrom
40
125
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.}
UNITS
Ω
mV
mV
mV
mV
ppm
ns
ns
ns
ns
ps
ps
ps
ps
%
ps
ps
Notes
1
1,3
1,3
1
1
1
1
1,2
2
2
1,2
1,2
1
1
1
1
1
1
1
Electrical Characteristics - LCD_SS 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
Current Source Output
Impedance
Zo¹
V_O = V_x
3000
Voltage High
VHigh Statistical measurement on single 660
750
Voltage Low
VLow
ended signal using oscilloscope
-150
0
Max Voltage
Vovs
Measurement on single ended
790
Min Voltage
Vuds
signal using absolute value.
-300
0
Crossing Voltage (abs) Vcross(abs)
250
350
Crossing Voltage (var)
d-Vcross
Variation of crossing over all
edges
12
Rise Time
t_r
V_OL = 0.175V, V_OH = 0.525V
175
308
Fall Time
t_f
V_OH = 0.525V, V_OL = 0.175V
175
310
Rise Time Variation
d-t_r
30
Fall Time Variation
d-t_f
30
Duty Cycle
d_t3
Measurement from differential
wavefrom
45
50
Skew
t_sk3
V_T = 50%
100
Jitter, Cycle to cycle
t_jcyc-cyc
Measurement from differential
wavefrom
40
1_{Guaranteed by design and characterization, not 100% tested in production.}
2_{IREF = VDD/(3xRR). For RR = 475Ω (1%), IREF = 2.32mA. IOH = 6 x IREF and VOH = 0.7V @ ZO=50Ω.}
MAX
850
150
1150
550
140
700
700
125
125
55
250
125
UNITS
Ω
mV
mV
mV
mV
ps
ps
ps
ps
%
ps
ps
Notes
1
1,2
1,2
1
1
1
1
1
1
1
1
1
1
1
0933D—03/16/05
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