ICS601-21 查看數據表（PDF） - Integrated Circuit Systems
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ICS601-21 Datasheet PDF : 6 Pages
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ICS601-21
LOW PHASE NOISE CLOCK MULTIPLIER
External Components
The ICS601-21 requires a minimum number of external components for proper operation. Decoupling
capacitors of 0.01 µF and 0.1 µF should be connected between VDD and GND, as close to the part as
possible. A 50 Ω terminating resistor should be used on each clock output. (See termination diagram on
page 5). The crystal must be connected as close to the chip as possible. The crystal should be
fundamental mode, parallel resonant. Do not use third overtone. For exact tuning when using a crystal,
capacitors should be connected from pins X1 to ground and X2 to ground. In general, the value of these
capacitors is given by the following equation, where CL is the crystal load capacitance: Crystal caps (pF) =
(CL-5) x 2. So for a crystal with 16 pF load capacitance, two 22 pF caps can be used. For any given board
layout, ICS can measure the board capacitance and recommend the exact capacitance value to use.
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS601-21. These ratings,
which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of
the device at these or any other conditions above those indicated in the operational sections of the
specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can
affect product reliability. Electrical parameters are guaranteed only over the recommended operating
temperature range.
Item
Supply Voltage, VDD
All Inputs and Outputs
Ambient Operating Temperature, Commercial version
Storage Temperature
Junction Temperature
Soldering Temperature
Rating
7V
-0.5 V to VDD+0.5 V
0 to +70 °C
-65 to +150 °C
125 °C
260 °C
Recommended Operation Conditions
Parameter
Ambient Operating Temperature
Power Supply Voltage (measured in respect to GND)
Min.
0
+3.0
Typ.
Max.
+70
+3.6
Units
°C
V
DC Electrical Characteristics
VDD=3.3 V ±10%, Ambient temperature 0 to +70°C
Parameter
Symbol Conditions
Operating Voltage
VDD
Input High Voltage
Input Low Voltage
VIH X1/ICLK pin only
VIL X1/ICLK pin only
Min.
3.0
VDD/2+1
Typ.
Max.
3.6
VDD/2-1
Units
V
V
V
MDS 601-21 H
3
Revision 040204
Integrated Circuit Systems l 525 Race Street, San Jose, CA 95126 l tel (408) 297-1201 l www.icst.com
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