MK3713

Low Cost 3.3 Volt VCXO

MDS 3713 B

1

Revision 020900

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

PRELIMINARY INFORMATION

Block Diagram

Description

Features

The MK3713 is ICS/MicroClock’s lowest cost,

low jitter, high performance 3.3 Volt VCXO

designed to replace expensive VCXO modules.

The on-chip Voltage Controlled Crystal Oscillator

accepts a 0 to 3.3 V input voltage to cause the

output clocks to vary by ±100 ppm. Using

ICS/MicroClock’s patented VCXO and analog

Phase-Locked Loop (PLL) techniques, the device

uses an inexpensive external pullable crystal input

to produce the output clock.

ICS/MicroClock manufactures the largest variety

of communications, set-top box, and multimedia

clock synthesizers for all applications. If more

clock outputs are needed, see the MK3732 or

MK377x family of parts. Consult

ICS/MicroClock to eliminate VCXOs, crystals

and oscillators from your board.

• Packaged in 8 pin SOIC

• Ideal for T1 and E1 VCXOs

• Output range of 1.25 MHz to 10 MHz

• For a 10-20 MHz output range, use the MK3711

• For higher than 20 MHz, use the MK3732-05

• 3.3 V only operating voltage

• Uses an inexpensive 10 - 20 MHz external crystal

• On-chip VCXO (patented) with pull range of

200ppm (minimum)

• VCXO tuning voltage of 0 to 3.3 V

• 12mA output drive capability at TTL levels

• Advanced, low power, sub-micron CMOS process

Voltage

Controlled

Crystal

Oscillator

10 -20 MHz

pullable

crystal

X1

X2

VIN

Output

Buffer

VCXOCLK

÷N

S1, S0