Integrated
Circuit
ICS9DB108
Systems, Inc.
Electrical Characteristics - DIF 0.7V Current Mode Differential Pair
TA = 0 - 70°C; VDD = 3.3 V +/-5%; CL =2pF, RS=33.2Ω, RP=49.9Ω, ΙREF = 475Ω
PARAMETER
SYMBOL
Zo1
CONDITIONS
VO = Vx
MIN
TYP
MAX
850
UNITS NOTES
Current Source Output
Impedance
3000
Ω
1
Statistical measurement on single
ended signal using oscilloscope
math function.
Voltage High
Voltage Low
VHigh
VLow
660
1,3
1,3
mV
-150
150
Measurement on single ended
signal using absolute value.
Max Voltage
Min Voltage
Crossing Voltage (abs)
Vovs
Vuds
Vcross(abs)
1150
1
1
1
mV
mV
mV
-300
250
550
140
Variation of crossing over all
edges
see Tperiod min-max values
200MHz nominal
Crossing Voltage (var)
Long Accuracy
d-Vcross
ppm
1
0
ppm
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ps
1,2
2
2
2
2
2
2
2
2
1,2
1,2
1,2
1,2
1
4.9985
4.9985
5.9982
5.9982
7.4978
7.4978
9.9970
9.9970
4.8735
5.8732
7.3728
9.8720
175
5.0015
5.0266
6.0018
6.0320
7.5023
5.4000
10.0030
10.0533
200MHz spread
166.66MHz nominal
166.66MHz spread
133.33MHz nominal
133.33MHz spread
100.00MHz nominal
100.00MHz spread
Average period
Tperiod
200MHz nominal
166.66MHz nominal/spread
133.33MHz nominal/spread
100.00MHz nominal/spread
VOL = 0.175V, VOH = 0.525V
Tabsmin
Absolute min period
tr
Rise Time
Fall Time
700
700
125
125
tf
VOH = 0.525V VOL = 0.175V
175
ps
ps
ps
1
1
1
d-tr
d-tf
Rise Time Variation
Fall Time Variation
Measurement from differential
wavefrom
dt3
Duty Cycle
Skew
45
55
50
%
1
1
tsk3
VT = 50%
ps
PLL mode,
Measurement from differential
wavefrom
BYPASS mode as additive jitter
50
50
ps
ps
1
1
tjcyc-cyc
Jitter, Cycle to cycle
1Guaranteed by design and characterization, not 100% tested in production.
2 All Long Term Accuracy and Clock Period specifications are guaranteed with the assumption that the input clock
complies with CK409/CK410 accuracy requirements
3IREF = VDD/(3xRR). For RR = 475Ω (1%), IREF = 2.32mA. IOH = 6 x IREF and VOH = 0.7V @ ZO=50Ω.
0723D—01/08/04
6