ICS843023
FEMTOCLOCKS™ CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
4.6V
NOTE: Stresses beyond those listed under Absolute
Maximum Ratings may cause permanent damage to the
device.These ratings are stress specifications only. Functional op-
eration of product at these conditions or any conditions beyond
those listed in the DC Characteristics or AC Characteristics is not
implied. Exposure to absolute maximum rating conditions for ex-
tended periods may affect product reliability.
CC
Inputs, V
-0.5V to VCC + 0.5V
I
Outputs, IO
Continuous Current
Surge Current
50mA
100mA
Package Thermal Impedance, θJA 101.7°C/W (0 mps)
Storage Temperature, T -65°C to 150°C
STG
TABLE 3A. POWER SUPPLY DC CHARACTERISTICS, VCC = 3.3V 5ꢀ, TA=0°C TO 70°C
Symbol Parameter Test Conditions
Minimum Typical Maximum Units
VCC
VCCA
IEE
Positive Supply Voltage
3.135
3.135
3.3
3.3
3.465
3.465
75
V
V
Analog Supply Voltage
Power Supply Current
mA
TABLE 4B. LVCMOS/LVTTL DC CHARACTERISTICS, VCC = 3.3V 5ꢀ, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
VIH
VIL
IIH
Input High Voltage
2
VCC + 0.3
V
V
Input Low Voltage
-0.3
0.8
5
Input High Current OE
Input Low Current OE
VCC = VIN = 3.465V
µA
µA
IIL
VCC = 3.465V, VIN = 0V
-150
TABLE 3C. LVPECL DC CHARACTERISTICS, VCC = 3.3V 5ꢀ, TA=0°C TO 70°C
Symbol Parameter Test Conditions
Minimum
VCC - 1.4
VCC - 2.0
0.6
Typical
Maximum Units
VOH
Output High Voltage; NOTE 1
VCC - 0.9
VCC - 1.7
1.0
V
V
V
VOL
Output Low Voltage; NOTE 1
VSWING
Peak-to-Peak Output Voltage Swing
NOTE 1: Outputs terminated with 50Ω to VCC - 2V.
TABLE 4. CRYSTAL CHARACTERISTICS
Parameter
Test Conditions
Minimum
Typical Maximum Units
Fundamental
Mode of Oscillation
Frequency
24.5
32
50
7
MHz
Ω
Equivalent Series Resistance (ESR)
Shunt Capacitance
Drive Level
pF
1
mW
TABLE 5. AC CHARACTERISTICS, VCC = 3.3V 5ꢀ, TA=0°C TO 70°C
Symbol Parameter Test Conditions
Minimum Typical Maximum Units
fOUT
Output Frequency
245
320
MHz
RMS Phase Jitter (Random);
NOTE 1
tjit(Ø)
Integration Range: 1.875MHz - 20MHz
20ꢀ to 80ꢀ
0.39
ps
tR / tF
odc
Output Rise/Fall Time
Output Duty Cycle
300
47
600
53
ps
ꢀ
NOTE 1: Please refer to the Phase Noise Plot.
IDT™ / ICS™ 3.3V LVPECL CLOCK GENERATOR
3
ICS843023AG REV. A OCTOBER 23, 2008