MK3727 查看數據表（PDF） - Integrated Circuit Systems

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MK3727

LOW COST 24 - 36 MHZ 3.3 VOLT VCXO

Integrated Circuit Systems 

MK3727

LOW COST 24 - 36 MHZ 3.3 VOLT VCXO

considered to reduce stray capacitance. (Alternately,

the crystal may be re-specified to a higher load

capacitance. Contact ICS MicroClock for details.) If the

centering error is more than 25ppm positive, add

identical fixed centering capacitors from each crystal

pin to ground. The value for each of these caps (in pF)

is given by:

External Capacitor =

2 x (centering error)/(trim sensitivity)

Trim sensitivity is a parameter which can be supplied

by your crystal vendor. If you do not know the value,

assume it is 30 ppm/pF. After any changes, repeat the

measurement to verify that the remaining error is

acceptably low (typically less than ±25ppm).

Absolute Maximum Ratings

Stresses above the ratings listed below can cause permanent damage to the MK3727. 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

Storage Temperature

Soldering Temperature

Rating

7V

-0.5V to VDD+0.5V

0 to +70°C

-65 to +150°C

260°C

Recommended Operation Conditions

Parameter

Ambient Operating Temperature

Power Supply Voltage (measured in respect to GND)

Reference crystal parameters

Min.

0

+3.15

Typ.

Max.

–

+70

+3.45

Refer to page 3

Units

°C

V

MDS 3727 E

4

Revision 052901

Integrated Circuit Systems q 525 Race Street, San Jose, CA 95126 q tel (408) 295-9800 q www.icst.com

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