Advance Data Sheet #: SG036

Page 4 of 16

Rev: A02

Date: 10/25/01

NOTES:

A

Active

FR

Free Run Mode

NA

Not Active

RA

Locked to Reference A

RB

Locked to Reference B

U

Unstable (due to conditions shown, switch to active reference or Free Run)

X

Don’t care

Input And Output Characteristics

Table 3

Symbol

Parameter

Minimum

Nominal

Maximum

Units

Notes

CMOS Input and Output Characteristics

V

ih

High Level Input Voltage

2.0

-

5.5

V

V

il

Low Level Input Voltage

0.0

-

0.8

V

T

io

I/O to Output Valid

-

-

10

ns

C

l

Output Capacitance

-

-

10

pF

V

oh

High Level Output Voltage

2.4

-

-

V

V

ol

Low Level Output Voltage

-

-

0.4

V

T

ir

Input Reference Pulse Width

12.5

-

-

ns

PECL Output Characteristics

V

oh

High Level PECL Voltage

2.27

2.34

2.52

V

V

ol

Low Level PECL Voltage

1.49

1.51

1.68

V

C

l

Output Capacitance

-

-

10

pF

T

skew

Differential Output Skew

-

50

-

ps

Input Selection / Output Response

Table 4

INPUTS

OUTPUTS

NOTE

RESET

ENABLE

SEL

AB

REF

A

REF

B

FR

FR

status

ALARM

Q

QN

1

0

XXXX

1

X

X

X

FR

X

1

XXXX

X

X

0

1

0

0

XXX

1

1

X

X

X

FR

00

0

A

A

0

0

0

X

X

RA

00

1

A

A

0

0

0

X

X

RB

00

0

NA

A

0

0

1

X

X

U

00

1

NA

A

0

0

0

X

X

RB

00

1

A

NA

0

0

1

X

X

U

00

0

A

NA

0

0

0

X

X

RA

00

X

NA

NA

0

1

1

X

X

FR