MDS 3727 E

2

Revision 052901

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MK3727

Pin Assignment

Pin Descriptions

X1

VDD

VIN

GND

GND

NC

CL K

X2

1

2

3

4

8

7

6

5

MK3 727S

MK3 727A

MK3 727C

MK3 727D

8 Pin (150 mil) SO IC

Pin

Number

Pin

Name

Pin

Type

Pin Description

1

XI

Input

Crystal connection -- Connect to the external pullable crystal.

2

VDD

Power

Connect to +3.3 V (0.01uf decoupling capacitor recommended)

3

VIN

Input

Voltage input to VCXO -- 0 to 3.3 V analog input which controls the

oscillation frequency of the VCXO.

4

GND

Power

Connect to ground

5

CLK

Output

Clock output

6

NC

--

No internal connection (may connect to ground or VDD)

7

GND

Power

Connect to ground

8

X2

Input

Crystal connection -- Connect to the external pullable crystal.