mk1493-14 Integrated Device Technology, mk1493-14 Datasheet - Page 8

• Manufacturer Part Number: mk1493-14
• Description: Spread Spectrum Clock Generator
• Manufacturer: Integrated Device Technology

External Components
Crystal Information
Recommended Operation Conditions
IDT™ / ICS™ SPREAD SPECTRUM CLOCK GENERATOR
Absolute Maximum Ratings
MK1493-14
SPREAD SPECTRUM CLOCK GENERATOR
A minimum number of external components are required for proper operation. Decoupling capacitors of 0.01 µF
should be connected between VDD and GND pairs. The capacitors should be placed between pins VDD and GND
pins as close to the device as possible. A 33Ω series terminating resistor should be used on each clock output if the
trace is longer than 1 inch.
The crystal used should be a fundamental mode, parallel resonant crystal. Do not use third overtone. Crystal
capacitors should be connected from pins X1 to ground and from X2 to ground to optimize the initial accuracy. The
value of these capacitors is given by the following equation:
Crystal caps (pF) = (C
In the equation, C
2] capacitors should be used.
Stresses above the ratings listed below can cause permanent damage to the MK1493-14. 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.
Parameter
Ambient Operating Temperature
Power Supply Voltage (measured in respect to GND)
Supply Voltage, VDD
All Inputs and Outputs
Ambient Operating Temperature
Storage Temperature
Junction Temperature
Soldering Temperature
L
is the crystal load capacitance. So for a crystal with 18 pF load capacitance, two 24 pF [(18-6) x
L
- 6) x 2
Item
8
Min.
+3.0
0
7 V
-0.5 V to VDD+0.5 V
0 to +70°C
-65 to +150°C
125°C
260°C
Typ.
Rating
MK1493-14
Max.
+3.6
+70
REV A 082205
Units
SSCG
°C
V