ICS8422004-01I Datasheet, PDF (4/13 Pages) Integrated Circuit Systems – FEMTOCLOCKS™ CRYSTAL-TO-LVHSTL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS8422004I-01
FEMTOCLOCKS™ CRYSTAL-TO-
LVHSTL FREQUENCY SYNTHESIZER
TABLE 3D. LVHSTL DC CHARACTERISTICS, V_DD = V_DDA = 3.3V±5%,V_DDO = 1.8V±0.2V, TA = -40°C TO 85°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum
V_OH
Output High Voltage; NOTE 1
1.0
1.2
V_OL
Output Low Voltage; NOTE 1
0
0.4
V_OX
Output Crossover Voltage; NOTE 2
40
60
V_SWING Peak-to-Peak Output Voltage Swing
NOTE 1: Outputs terminated with 50Ω to ground.
0.6
1.1
NOTE 2: Defined with respect to output voltage swing at a given condition.
Units
V
V
%
V
TABLE
3E.
LVHSTL
DC
CHARACTERISTICS,
V
DD
=V
DDA
=
2.5V±5%,V
DDO
=
1.8V±0.2V, TA
=
-40°C
TO
85°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum
V_OH
Output High Voltage; NOTE 1
V_OL
Output Low Voltage; NOTE 1
V_OX
Output Crossover Voltage; NOTE 2
V_SWING Peak-to-Peak Output Voltage Swing
NOTE 1: Outputs terminated with 50Ω to ground.
NOTE 2: Defined with respect to output voltage swing at a given condition.
1.0
1.2
0.235
40
60
0.9
Units
V
V
%
V
TABLE 4. CRYSTAL CHARACTERISTICS
Parameter
Test Conditions
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance
Drive Level
NOTE: Characterized using an 18pF parallel resonant crystal.
Minimum Typical Maximum
Fundamental
22.4
25
27.2
50
7
1
Units
MHz
Ω
pF
mW
8422004AGI-01
www.icst.com/products/hiperclocks.html
4
REV. B NOVEMBER 14, 2005