
ICS843SDN
FEMTOCLOCKCRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR
IDT / ICS 3.3V LVPECL CLOCK GENERATOR
2
ICS843SDNAG REV. A
NOVEMBER 13, 2012
Table 2. Pin Descriptions
Absolute Maximum Ratings
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 beyond
those listed in the DC Characteristics or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect product reliability.
DC Electrical Characteristics
Table 3A. Power Supply DC Characteristics, VCC = 3.3V ± 5%, VEE = 0V, TA = 0°C to 70°C
Table 3B. LVPECL DC Characteristics, VCC = 3.3V ± 5%, VEE = 0V, TA = 0°C to 70°C
NOTE 1: Outputs termination with 50
to V
CC – 2V.
Number
Name
Type
Description
1VCCA
Power
Analog supply pin.
2VEE
Power
Negative supply pin.
3, 4
XTAL_OUT
XTAL_IN
Input
Crystal oscillator interface. XTAL_IN is the input, XTAL_OUT is the output.
5
nc
Unused
No connect.
6, 7
nQ, Q
Output
Differential output pair. LVPECL interface levels.
8VCC
Power
Core supply pin.
Item
Rating
Supply Voltage, VCC
4.6V
Inputs, VI
-0.5V to VCC+ 0.5V
Outputs, IO
Continuos Current
Surge Current
50mA
100mA
Package Thermal Impedance,
JA
129.5
C/W (0 mps)
Storage Temperature, TSTG
-65
C to 150C
Symbol
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
VCC
Core Supply Voltage
3.135
3.3
3.465
V
VCCA
Analog Supply Voltage
VCC – 0.10
3.3
VCC
V
IEE
Power Supply Current
83
mA
Symbol
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
VOH
Output High Current; NOTE 1
VCC – 1.4
VCC – 0.9
V
VOL
Output Low Current; NOTE 1
VCC – 2.0
VCC – 1.7
V
VSWING
Peak-to-Peak Output Voltage Swing
0.6
1.0
V