MK3754

Low Cost 54 MHz 3.3 Volt VCXO

MDS 3754 D

2

Revision 060100

Printed 11/16/00

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

I C R O

Pin Descriptions

Pin Assignment

Number

Name

Description

1

X1

Crystal connection. Connect to a pullable 13.5 MHz crystal.

2

VDD

VDD. Connect to +3.3 V.

3

VIN

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

4

GND

Connect to ground.

5

VDD

VDD. Connect to +3.3 V.

6

CLK

54 MHz clock output.

7

GND

Connect to ground.

8

X2

Crystal connection. Connect to a pullable 13.5 MHz crystal.

8 pin (150 mil) SOIC

MK3754

1

8

2

3

4

7

6

5

X2

X1

GND

VDD

CLK

VIN

GND

VDD

Pullable Crystal Specifications:

Correlation (load) Capacitance

14 pF

C0/C1

240 max

ESR

35

Ω max

Operating Temperature

0 to 70 °C

Initial Accuracy

±20 ppm

Temperature plus Aging Stability

±50 ppm