ICS843021 Datasheet, PDF (3/13 Pages) Integrated Circuit Systems – FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR

Integrated
Circuit
Systems, Inc.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V_CC
Inputs, V_I
Outputs, I_O
Continuous Current
Surge Current
Package Thermal Impedance, θ_JA
Storage Temperature, T
STG
4.6V
-0.5V to V_CC + 0.5V
50mA
100mA
101.7°C/W (0 mps)
-65°C to 150°C
ICS843021
FEMTOCLOCKS™ CRYSTAL-TO-
3.3V LVPECL CLOCK GENERATOR
NOTE: Stresses beyond those listed under Absolute
Maximum Ratings may cause permanent damage to the
device. These ratings are stress specifications only. Functional
operation of product at these conditions or any conditions be-
yond those listed in the DC Characteristics or AC Character-
istics is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect product reliability.
TABLE 3A. POWER SUPPLY DC CHARACTERISTICS, V_CC = 3.3V±10%, TA=0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum
V_CC
V_CCA
I_EE
Core Supply Voltage
Analog Supply Voltage
Power Supply Current
2.97
2.97
Typical
3.3
3.3
Maximum
3.63
3.63
85
Units
V
V
mA
TABLE 3B. LVPECL DC CHARACTERISTICS, V_CC = 3.3V±10%, TA=0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum
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
Typical
Maximum
V_CC - 0.9
V_CC - 1.7
1.0
Units
V
V
V
TABLE 4. CRYSTAL CHARACTERISTICS
Parameter
Test Conditions
Minimum Typical Maximum
Mode of Oscillation
Fundamental
Frequency; NOTE 1
14
40
Equivalent Series Resistance (ESR)
50
Shunt Capacitance
7
NOTE 1: Input frequency is limited to a range of 22.4MHz - 28MHz due to VCO range.
Units
MHz
Ω
pF
TABLE 5. AC CHARACTERISTICS, V_CC = 3.3V±10%, TA=0°C TO 70°C
Symbol Parameter
Test Conditions
f_OUT
tjit(Ø)
t_R / t_F
odc
Output Frequency
RMS Phase Jitter,
(Random); NOTE 1
Output Rise/Fall Time
Output Duty Cycle
125MHz
(Intergration Range: 1.875MHz to 20MHz)
20% to 80%
NOTE 1: Please refer to the Phase Noise Plot.
Minimum Typical Maximum Units
112
140
MHz
0.37
ps
250
550
ps
49
51
%
843021AG
www.icst.com/products/hiperclocks.html
REV. C MARCH 31, 2005
3