Preliminary Data Sheet #: SG072

Page 3 of 12

Rev: P01

Date: 04/14/03

© Copyright 2003 The Connor-Winfield Corp.

NOTES:

1.0

Requires external regulation

2.0

Externally selectable via Input Select AB

3.0

Static offset will accumulate with each reference switch for the Reference Output only.

4.0

Entry into Free Run doesn’t meet requirement for initial 2.33 seconds of self-timing

5.0

If the selected reference is lost, this mask will be broken.

6.0

Phase Drift from 0° to 70°C.

7.0

Frequency will drift to lower limit rail if not switched.

8.0

Loss of both references will automatically force Free Run. Change the Force Free Run (pin 5) to 1 upon detection of this condition.

Output Jitter Specifications

Table 4

Jitter BW 10 Hz - 20 MHz

SONET Jitter BW 12 kHz - 20 MHz

Frequency (MHz)

pS (RMS)

m UI

pS (RMS)

m UI

125

10 Typ.

1.250 Typ.

1 Max.

0.125 Max.

Input and Output Characteristics

Table 3

Symbol

Parameter

Minimum

Nominal

Maximum

Units

Notes

V

IH

High level input voltage

2.0

-

5.5

V

V

IL

Low level input voltage

0

-

0.8

V

T

IO

I/O to output valid

-

-

10

nS

C

OUT

Output capacitance

-

-

10

pF

V

HO

High level output voltage loh = -4mA

2.40

-

-

-

Vcc Min

V

IO

Low Level output voltage lo1 = 8mA

-

-

0.4

-

Vcc Max

T

IR

Input reference signal pulse width

10

-

-

nS

Operational Table

Table 5

INPUTS

OUTPUTS

Select

A/B

Ref A

Ref B

Force

Free Run

Oscillator

Output

Ref Out

LOL

LOR A

LOR B

X

A

A

1

FR

FR

0

1

1

XNA

A

1

FR

FR

0

0

1

XA

NA

1

FR

FR

0

1

0

X

NA

NA

0 **

FR

FR

0

0

0

0

A

A

0

RA

RA

1

1

1

0A

NA

0

RA

RA

1

1

0

0NA

A

0

U

U

0

0

1

1

A

A

0

RB

RB

1

1

1

1NA

A

0

RB

RB

1

0

1

1A

NA

0

U

U

0

1

0

Notes:

A = Active

NA = Not Active

FR = Free Run

RA = Locked to Reference A

RB = Locked to Reference B

U = Unstable (See note 7)

X = Don't Care

** See Note 8.0