ICS843071I Datasheet, PDF (4/15 Pages) Integrated Circuit Systems – FEMTOCLOCKS™ CRYSTAL-TO- LVPECL CLOCK GENERATOR

Integrated
Circuit
Systems, Inc.
ICS843071I
FEMTOCLOCKS™ CRYSTAL-TO- LVPECL
CLOCK GENERATOR
TABLE 3D. LVPECL DC CHARACTERISTICS, V_CC = V_CCA = 3.3V±10% OR 2.5V±10%, TA = -40°C TO 85°C
Symbol Parameter
Test Conditions
Minimum Typical
V_OH
Output High Voltage; NOTE 1
V_OL
Output Low Voltage; NOTE 1
V_SWING Peak-to-Peak Output Voltage Swing
NOTE 1: Outputs terminated with 50Ω to V_CC - 2V.
V_CC - 1.4
V_CC - 2.0
0.6
Maximum
V_CC - 0.9
V_CC - 1.7
1.0
Units
V
V
V
TABLE 4. CRYSTAL CHARACTERISTICS
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance
Drive Level
Test Conditions
Minimum Typical Maximum
Fundamental
20.833
28.3
50
7
1
Units
MHz
Ω
pF
mW
TABLE 5A. AC CHARACTERISTICS, V_CC = V_CCA = 3.3V±10%, TA = -40°C TO 85°C
Symbol Parameter
Test Conditions
f_OUT
tjit(Ø)
Output Frequency
RMS Phase Jitter ( Random);
NOTE 1
150MHz @ Integration Range:
12kHz - 20MHz
75MHz @ Integration Range:
12kHz - 20MHz
159.375MHz @ Integration Range:
1.875MHz - 20MHz
t_R / t_F
odc
Output Rise/Fall Time
Output Duty Cycle
20% to 80%
NOTE 1: Please refer to the Phase Noise Plots following this section.
Minimum
62.5
250
48
Typical
0.64
0.64
0.40
Maximum Units
170
MHz
ps
ps
ps
500
ps
52
%
TABLE
5B.
AC
CHARACTERISTICS,
V
CC
=
V
CCA
=
2.5V±10%,
TA
=
-40°C
TO
85°C
Symbol Parameter
Test Conditions
f_OUT
tjit(Ø)
t_R / t_F
odc
Output Frequency
RMS Phase Jitter ( Random)
Output Rise/Fall Time
Output Duty Cycle
150MHz @ Integration Range:
12kHz - 20MHz
75MHz @ Integration Range:
12kHz - 20MHz
159.375MHz @ Integration Range:
1.875MHz - 20MHz
20% to 80%
Minimum
62.5
250
48
Typical
0.94
0.80
0.42
Maximum Units
170
MHz
ps
ps
ps
500
ps
52
%
843071AGI
www.icst.com/products/hiperclocks.html
4
REV. A JANUARY 11, 2006