NB6N239S datasheet(1/12 Pages) ONSEMI

Part #	NB6N239S

Description	3.3 V, 3.0 GHz Any Differential Clock IN to LVDS OUT Clock Divider

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Manufacturer	ONSEMI [ON Semiconductor]

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January, 2013 − Rev. 6

1

Publication Order Number:

NB6N239S/D

NB6N239S

3.3 V, 3.0 GHz Any

Differential Clock IN to

LVDS OUT ÷1/2/4/8, ÷2/4/8/16

Clock Divider

Description

The NB6N239S is a high−speed, low skew clock divider with two

divider circuits, each having selectable clock divide ratios;

B1/2/4/8

and

B2/4/8/16. Both divider circuits drive LVDS compatible outputs.

(More device information on page 7). The NB6N239S is a member

of the ECLinPS MAX

™ family of high performance clock products.

Features

• Maximum Clock Input Frequency, 3.0 GHz (1.5 GHz with B1)

• Input Compatibility with LVDS/LVPECL/CML/HSTL/HCSL

• Rise/Fall Time 120 ps Typical

• < 5 ps Typical Within Device Output Skew

• Example; 622.08 MHz Input Generates 38.88 MHz to 622.08 MHz

Outputs

• Internal 50 W Termination Provided

• Random Clock Jitter < 2 ps RMS

• QA B1 Edge Aligned to QB Bn Edge

• Operating Range: VCC = 3.0 V to 3.465 V with GND = 0 V

• Master Reset for Synchronization of Multiple Chips

• VBBAC Reference Output

• Synchronous Output Enable/Disable

• TIA/EIA − 644 Compliant

• These Devices are Pb−Free and are RoHS Compliant

CLK

EN

Figure 1. Simplified Logic Diagram

QB

MR

QA

SELB1

SELB0

SELA1

SELA0

VT

+

B1

B2

B4

B8

B2

B4

B8

B16

A

B

50 W

R

50 W

VBBAC

MARKING DIAGRAM*

QFN−16

MN SUFFIX

CASE 485G

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W

= Work Week

G

= Pb−Free Package

Bottom View

*For additional marking information, refer to

Application Note AND8002/D.

See detailed ordering and shipping information in the package

dimensions section on page 11 of this data sheet.

ORDERING INFORMATION

http://onsemi.com

(Note: Microdot may be in either location)

1

16

NB6N

239S

ALYWG

G

1

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