ICS843023 Datasheet, PDF (3/10 Pages) Integrated Circuit Systems – 3.3V, 250MHZ LVPECL CLOCK GENERATOR

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS843023
FEMTOCLOCKS™ CRYSTAL-TO-
3.3V, 250MHZ LVPECL CLOCK GENERATOR
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
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±5%, 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
3.135
3.135
Typical
3.3
3.3
65
Maximum
3.465
3.465
Units
V
V
mA
TABLE 4B. LVCMOS/LVTTL DC CHARACTERISTICS, V_CC = 3.3V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum
V_IH
Input High Voltage
V_IL
Input Low Voltage
I_IH
Input High Current OE
I_IL
Input Low Current OE
V_CC = V_IN = 3.465V
V_CC = 3.465V, V_IN = 0V
2
-0.3
-150
Typical
Maximum
V_CC + 0.3
0.8
5
Units
V
V
µA
µA
TABLE 3C. LVPECL DC CHARACTERISTICS, V_CC = 3.3V±5%, TA=0°C TO 70°C
Symbol Parameter
Test Conditions
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.
TABLE 4. CRYSTAL CHARACTERISTICS
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance
Test Conditions
Minimum
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
Minimum Typical Maximum
Fundamental
25
50
7
Units
MHz
Ω
pF
TABLE 5. AC CHARACTERISTICS, V_CC = 3.3V±5%, TA=0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum
f
OUT
tjit(Ø)
Output Frequency
RMS Phase Jitter (Random);
NOTE 1
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 Plot.
843023AG
www.icst.com/products/hiperclocks.html
Typical Maximum Units
250
MHz
0.33
ps
400
ps
50
%
REV. A NOVEMBER 30, 2004
3