Data Sheet #: SG126

Page 5 of 16

Rev: 00

Date: 04/25/06

© Copyright 2006 The Connor-Winfield Corp.

Input And Output Characteristics

Table 5

Symbol

Parameter

Minimum

Nominal

Maximum

Units

Notes

CMOS Input Characteristics

V

IH

High Level Input Voltage

2

-

5.5

V

V

IL

Low Level Input Voltage

0

-

0.8

V

T

IO

I/O to Output Valid

-

-

10

nS

T

IR

Input Reference Signal Pulse Width

30

-

nS

LVCMOS Output Characteristics

C

O

Output Capacitance

-

-

10

pF

V

OH

High Level Output Voltage l

2.2

-

Vdc

High Level Output Voltage l

2.9

-

Vdc

V

OL

Low Level Output Voltage l

-

-

0.7

Vdc

Low Level Output Voltage l

-

-

0.2

Vdc

DC

Output Duty Cycle at 50% level

45

50

55

%

T

RF

Rise and Fall Time (20% - 80%)

-

-

2

ns

LVPECL Output Characteristics

L

Load

-

-

50

Ω

6.0

V

OH

Output Voltage High

V

-

V

V

dc

6.0

V

OL

Output Voltage Low

V

-

V

V

dc

6.0

DC

Output Duty Cycle at 50% level

45

50

55

%

T

RF

Rise and Fall Time (20% - 80%)

-

-

350

ps

Output Jitter Specifications

Table 4

Jitter BW 10 Hz - 20 MHz

SONET Jitter BW 12 KHz - 20 MHz

Frequency (MHz)

pS (RMS)

mUI

pS (RMS)

m UI

77.76 (CMOS Output)

10 Typ.

0.778 Typ.

3 Max.

0.233 Max.

155.55 (LVPECL Output)

10 Typ.

1.55 Typ.

1 Max.

0.155 Max.

163.84 (LVPECL Output)

10 Typ.

1.64 Typ.

1 Max.

0.164 Max.

166.6285 (LVPECL Output)

15 Typ.

2.50 Typ.

1 Max.

0.167 Max.

NOTES:

1.0: Units with option D selected as an output frequency, buffer the reference input and supply it as the

reference output without any jitter attenuation.

2.0: Requires external regulation

3.0: Frequency Lock from a 20 ppm offset in reference frequency

4.0: Offset between Reference Input and the Reference Output at room temperature.

5.0: Offset between Reference Input and the Reference Output over the entire specified temperature range.

6.0: 50

Ω termination into Vcc-2V or Thevinin equivalent.