ICS950811 Datasheet, PDF (9/18 Pages) Integrated Circuit Systems – Frequency Generator with 200MHz Differential CPU Clocks

ICS950811
Electrical Characteristics - CPU
T_A = 0 - 70°C; VDD=3.3V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER SYMBOL
CONDITIONS
MIN
Current Source
Output Impedance
Zo¹
V_O = V_x
3000
Output High Voltage V_OH3 I_OH = -1 mA
2.4
Output Low Voltage V_OL3 I_OL = 1 mA
Rise Time
t_r3
V_OL = 0.41V, V_OH = 0.86V
175
Fall Time
t_f3
V_OH = 0.86V V_OL = 0.41V
175
Duty Cycle
d_t3
measurement from differential wavefrom - ₄₅
0.35V to +035V
Skew
t_sk3
V_T = 50%
Jitter, Cycle to cycle tjcyc-cyc1 VT = 50%
1_{Guaranteed by design, not 100% tested in production.}
2 _{IOWT can be varied and is selectable thru the MULTSEL pin.}
TYP
240
242
51
50
76
MAX UNITS
Ω
V
0.4
700 ps
700 ps
55 %
100 ps
150 ps
Electrical Characteristics - PCICLK
T_A = 0 - 70C; VDD=3.3V +/-5%; C_L = 10-30 pF (unless otherwise specified)
PARAMETER SYMBOL
CONDITIONS
MIN
Output Frequency
F_O1
Output Impedance
R_DSP11 V_O = V_DD*(0.5)
12
Output High Voltage V_OH1 I_OH = -1 mA
2.4
Output Low Voltage
V_OL1
I_OL = 1 mA
Output High Current
I_OH1
V _OH@MIN = 1.0 V, V _OH@MAX = 3.135 V
-33
Output Low Current
I_OL1
V_{OL @MIN} = 1.95 V, V_{OL @MAX} = 0.4 V
30
Rise Time
t_r11
V_OL = 0.4 V, V_OH = 2.4 V
0.5
Fall Time
t_f11
V_OH = 2.4 V, V_OL = 0.4 V
0.5
Duty Cycle
d_t11
V_T = 1.5 V
45
Skew
t_sk11
V_T = 1.5 V
Jitter,cycle to cyc
t_jcy
c-c
1
yc
V_T = 1.5 V
1_{Guaranteed by design, not 100% tested in production.}
TYP MAX UNITS
33.33
MHz
33
55
Ω
V
0.55
V
-33 mA
38
mA
1.32 0.5to 2 ns
1.39 0.5 to 2 ns
52
55
%
247 500
ps
111 500
ps
0482E—08/09/07
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