MK3720 View Datasheet(PDF) - Integrated Circuit Systems
Part Name
Description
Manufacturer
MK3720 Datasheet PDF : 4 Pages
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MK3720
27 MHz and 54 MHz 3.3 Volt VCXO
Electrical Specifications
Parameter
Conditions
ABSOLUTE MAXIMUM RATINGS (note 1)
Supply voltage, VDD
Referenced to GND
Inputs and Clock Outputs
Referenced to GND
Ambient Operating Temperature
Soldering Temperature
Max of 10 seconds
Storage temperature
DC CHARACTERISTICS (VDD = 3.3 V unless noted)
Operating Voltage, VDD
Output High Voltage, VOH
IOH=-12mA
Output Low Voltage, VOL
IOL=12mA
Output High Voltage, VOH, CMOS level
IOH=-4mA
Operating Supply Current, IDD
No Load
Short Circuit Current
VIN, VCXO control voltage
AC CHARACTERISTICS (VDD = 3.3 V unless noted)
Input Crystal Frequency
Output Clock Rise Time
0.8 to 2.0V
Output Clock Fall Time
2.0 to 0.8V
Output Clock Duty Cycle
At 1.4V
Maximum Absolute Jitter, short term
Output pullability, note 2
0V ≤ VIN ≤ 3.3 V
Minimum Typical Maximum Units
7
V
-0.5
VDD+0.5 V
0
70
°C
260
°C
-65
150
°C
3.15
2.4
VDD-0.4
11
±50
0
3.45
V
V
0.4
V
V
mA
mA
3.3
V
13.50000
MHz
1.5
ns
1.5
ns
45
50
55
%
100
ps
±100
ppm
Notes: 1. Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage to the device. Prolonged
exposure to levels above the operating limits but below the Absolute Maximums may affect device reliability.
2. With an ICS approved pullable crystal. The MK3720A has a typical pull range of ±180 ppm.
External Components
The MK3720 requires a minimum number of external components for proper operation. A decoupling
capacitor of 0.01µF should be connected between VDD and GND on pins 2 and 4, as close to the
MK3720 as possible. A series termination resistor of 33 Ω may be used for the clock output. The input
crystal must be connected as close to the chip as possible. The input crystal should be a parallel mode,
pullable, AT cut, 13.5 MHz, with 14 pF load capacitance. Consult ICS for recommended suppliers.
IMPORTANT - read application note MAN05 before laying out the PCB.
MDS 3720 D
3
Revision 053100
Printed 11/16/00
Integrated Circuit Systems, Inc. •525 Race Street • San Jose • CA• 95126• (408)295-9800tel • www.icst.com
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