ICS840002 Datasheet, PDF (4/13 Pages) Integrated Circuit Systems – FEMTOCLOCKS™ CRYSTAL-TO LVCMOS/

Integrated
Circuit
Systems, Inc.
ICS840002I
FEMTOCLOCKS™ CRYSTAL-TO-
LVCMOS/LVTTL FREQUENCY SYNTHESIZER
TABLE
4C.
LVCMOS/LVTTL
DC
CHARACTERISTICS,
V
DD
=
V
DDA
=
V
DDO
=
3.3V±5%
OR
2.5V±5%,
OR
V
DD
=
V
DDA
=
3.3V±5%,
V
DDO
=
2.5V±5%,
TA
=
-40°C
TO
85°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
V_IH
Input High Voltage
V_DD = 3.465V
2
V_DD = 2.625V
1.7
V_IL
Input Low Voltage
V_DD = 3.465V
-0.3
V_DD = 2.625V
-0.3
OE
V_DD = V_IN = 3.465V
I_IH
Input
High Current _{F_SEL0:1, nPLL_SEL, MR,}
or 2.625V
V_DD = V_IN = 3.465V
nXTAL_SEL, TEST_CLK
or 2.625V
V_DD + 0.3
V
V_DD + 0.3
V
0.8
V
0.7
V
5
µA
150
µA
I_IL
Input
Low Current
OE
F_SEL0:1, nPLL_SEL, MR,
nXTAL_SEL, TEST_CLK
V_DD = 3.465V or 2.625V,
V_IN = 0V
V_DD = 3.465V or 2.625V,
V_IN = 0V
-150
-5
µA
µA
V_OH
Output High Voltage; NOTE 1
V_DDO = 3.3V±5%
2.6
V_DDO = 2.5V±5%
1.8
V
V
V_OL
Output Low Voltage; NOTE 1
V_DDO = 3.3V or 2.5V±5%
0.5
V
NOTE 1: Outputs terminated with 50Ω to V_DDO/2. See Parameter Measurement Information, Output Load Test Circuit.
TABLE 5. CRYSTAL CHARACTERISTICS
Parameter
Test Conditions
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance
NOTE: Characterized using an 18pF parallel resonant crystal.
Minimum Typical Maximum
Fundamental
26.5625
50
7
Units
MHz
Ω
pF
840002AGI
www.icst.com/products/hiperclocks.html
4
REV. A MARCH 10, 2005