
ICS844004AKI-104 REVISION A DECEMBER 15, 2010
4
2010 Integrated Device Technology, Inc.
ICS844004I-104 Data Sheet
FEMTOCLOCK CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER
Table 3C. LVCMOS/LVTTL DC Characteristics, VDD = VDDO = 3.3V ± 5% or 2.5V ± 5%, TA = -40°C to 85°C
Table 3D. LVDS DC Characteristics, VDD = VDDO = 3.3V ± 5%, TA = -40°C to 85°C
Table 3E. LVDS DC Characteristics, VDD = VDDO = 2.5V ± 5%, TA = -40°C to 85°C
Table 4. Crystal Characteristics
NOTE: Characterized using an 18pF parallel resonant crystal.
Symbol
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
VIH
Input High Voltage
VDD = 3.3V
2
VDD + 0.3
V
VDD = 2.5V
1.7
VDD + 0.3
V
VIL
Input Low Voltage
VDD = 3.3V
-0.3
0.8
V
VDD = 2.5V
-0.3
0.7
IIH
Input
High Current
REF_CLK,
MR, F_SEL[0:1],
nPLL_SEL, nXTAL_SEL
VDD = VIN = 3.465V
or 2.625V
150
A
IIL
Input
Low Current
REF_CLK,
MR, F_SEL[0:1],
nPLL_SEL, nXTAL_SEL
VDD = 3.465V or 2.625V,
VIN = 0V
-5
A
Symbol
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
VOD
Differential Output Voltage
300
450
600
mV
V
OD
VOD Magnitude Change
50
mV
VOS
Offset Voltage
1.2
1.425
1.65
V
OS
VOS Magnitude Change
50
mV
Symbol
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
VOD
Differential Output Voltage
250
400
550
mV
V
OD
VOD Magnitude Change
50
mV
VOS
Offset Voltage
1.0
1.2
1.4
V
OS
VOS Magnitude Change
50
mV
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
Mode of Oscillation
Fundamental
Frequency
23.33
26.5625
28.33
MHz
Equivalent Series Resistance (ESR)
50
Shunt Capacitance
7pF