MK3720 View Datasheet(PDF) - Integrated Circuit Systems

Part Name

Description

Manufacturer

MK3720

27 MHz and 54 MHz 3.3 Volt VCXO

Integrated Circuit Systems 

Pin Assignment

MK3720

27 MHz and 54 MHz 3.3 Volt VCXO

MK3720

X1 1

VDD 2

VIN 3

GND 4

8 X2

7 27M

6 13.5M

5 54M

8 pin (150 mil) SOIC

Pin Descriptions

Number

1

2

3

4

5

6

7

8

Name

X1

VDD

VIN

GND

54M

13.5M

27M

X2

Description

Crystal connection. Connect to a pullable 13.5 MHz crystal.

VDD. Connect to +3.3 V.

Voltage input to VCXO. Zero to 3.3 V analog input which controls the frequency of the VCXO.

Connect to ground.

54 MHz VCXO clock output.

13.5 MHz VCXO clock output.

27 MHz VCXO clock output.

Crystal connection. Connect to a pullable 13.5 MHz crystal.

Pullable Crystal Specifications:

Correlation (load) Capacitance

C0/C1

ESR

Operating Temperature

Initial Accuracy

Temperature plus Aging Stability

14 pF

240 max

35 Ω max

0 to 70 °C

±20 ppm

±50 ppm

MDS 3720 D

2

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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