THE CONNOR-WINFIELD CORP.

2111 COMPREHENSIVE DRIVE.

AURORA, IL 60505.

FAX

(630) 851-5040.

PHONE (630) 851-4722.

WWW.CONWIN.COM

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Copyright 2001 Connor-Winfield all rights reserved.

a

CRYSTAL CONTROLLED OSCILLATORS

The Connor Winfield P721 is a

Fixed Frequency, Surface Mount

Crystal Controlled Oscillator (XO)

designed for applications

requiring low jitter and a ±50ppm,

-10 to 70°C overall stability,

LVPECL Differential Outputs and

Tri-state Enable / Disable

function. The P721 is designed

using a 2X or 4X PLL

multiplication to achieve the high

frequency output.

1

2

P721

- 311.04MHz

CLOCK

SERIES

CENTER

FREQUENCY

FEATURES

DESCRIPTION

ORDERING INFORMATION

3.3V OPERATION

LVPECL DIFFERENTIAL OUTPUTS

ENABLE / DISABLE FUNCTION

LOW JITTER <2pS RMS

OVERALL FREQUENCY TOLERANCE:

±50ppm

TEMPERATURE RANGE: -10 to 70°C

SURFACE MOUNT PACKAGE

TAPE AND REEL PACKAGING

RoHS COMPLIANT / LEAD FREE

5x7.0mm SURFACE MOUNT 3.3V LVPECL

HIGH FREQUENCY OSCILLATOR

P721

Ec247

00

01/29/07

ABSOL UTE M AXIMUM RATING S

TABLE 1.0

PARAMETER

UNITS

MINIMUM

NOMINAL

MAXIMUM

UNITS

NOTE

Storage Temperature

-55

-

125

°C

Supply Voltage

(Vcc)

-0.5

-

4.6

Vdc

Input Voltage

(Vcc)

-0.5

-

Vcc+0.5

Vdc

OPERATING SPECIFIC ATIONS

TABLE 2.0

PARAMETER

MINIMUM

NOMINAL

MAXIMUM

UNITS

NOTE

Center Frequency

(Fo)

250

-

800

MHz

Total Frequency Tolerance

-50

50

ppm

1

Operating Temperature Range

-10

-

70

°C

Supply Voltage

(Vcc)

3.135

3.3

3.465

Vdc

Supply Current

(Icc)

-

60

100

mA

Jitter (BW=10Hz to 20MHz)

-

-

8

ps RMS

Jitter (BW=12kHz to 20MHz)

-

-

2

ps RMS

INPUT CHARACTERISTICS

TABLE 3.0

PARAMETER

MINIMUM

NOMINAL

MAXIMUM

UNITS

NOTE

Disable Input Voltage (Low)

(Vil)

-

-

1.68

Vdc

2

Enable Input Voltage (High)

(Vih)

2.275

-

-

Vdc

2

PECL OUTPUT CHARACTERISTICS

TABLE 4.0

PARAMETER

MINIMUM

NOMINAL

MAXIMUM

UNITS

NOTE

LOAD

-

-

50

Ohms

3

Voltage

(High)

(Voh)

2.275

-

-

Vdc

(Low)

(Vol)

-

-

1.68

Vdc

Duty Cycle

45

50

55

%

4

Rise / Fall Time 20% to 80%

-

-

0.5

ns

Notes

1)

Includes calibration @ 25°C, frequency stability vs. temperature, supply and load variations, shock, vibration and 20

years aging.

2)

When the oscillator is disabled, the outputs are at High Impedance. Output is enabled with no connection on pad 1.

3)

Output must be terminated into 50 ohms to Vcc – 2V or Thevenin equivalent.

4)

Duty Cycle measured at 50% of output swing.

PACKAG E CHARACTERISTICS

TABLE 5.0

Package

Hermetically sealed ceramic package and metal cover.