ABV0204

Low Phase Noise VCXO (96MHz to 200MHz)

30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1

FEATURES

• VCXO output for the 96MHz to 200MHz range

• Low phase noise.

• CMOS output.

• 12 to 25MHz crystal input.

• Integrated variable capacitors.

• Selectable High Drive (30mA) or Standard Drive

(10mA) output.

• Wide pull range (+/- 250 ppm).

• Low jitter (RMS): 4ps period.

• 3.3V operation.

• Available in 8-Pin SOIC.

DESCRIPTION

The ABV0204 is a low cost, high performance and

low phase noise VCXO for the 96 to 200MHz range.

The very low jitter (4ps RMS period jitter at

155.52MHz) makes this chip ideal for applications

requiring voltage controlled frequency sources in

CMOS. Input crystal can range from 12 to 25MHz

(fundamental resonant mode).

PIN CONFIGURATION

Note: ^ denotes internal pull up

OUTPUT RANGE

MULTIPLIER

FREQUENCY

RANGE

OUTPUT

BUFFER

X8

96 - 200MHz

CMOS

BLOCK DIAGRAM

1

2

3

45

6

7

8

XOUT

N/C

VCON

GND

XIN

VDD

CLK

OE^

Reference

Divider

Phase

Comparator

Charge

Pump

Loop

Filter

VCO

VCO

Divider

XTAL

OSC

OE

XIN

XOUT

CLK

VCON

VARICAP