PL123-05N datasheet(1/8 Pages) MICREL

Part #	PL123-05N

Description	Low Skew Fanout Buffer

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Manufacturer	MICREL [Micrel Semiconductor]

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PL123-05N/-09N

Low Skew Fanout Buffer

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944-0800 • fax +1(408) 474-1000 • www.micrel.com Rev 03/15/12

Page 1

FEATURES

 Output fanout buffer for DC to 134MHz

 Output Options:

o

1:5 output fanout with PL123-05

o

1:9 output fanout with PL123-09

 Low power consumption for portable applications

 Low input-output delay

 Output-Output skew less than 250ps

 Low Additive Phase Jitter of 60fs RMS

 2.5V to 3.3V, ±10% operation

 1.8V ±10% operation up to 67MHz

 Operating temperature range from -40°C to 85°C

 Available in 16-Pin SOP (PL123-09) and 8-Pin

SOP (PL123-05). Both are GREEN/RoHS packag-

es.

DESCRIPTION

The PL123-05N and PL123-09N are a low-cost

fanout buffers for distributing high-speed clocks with

low output to output skew and preserving low noise

properties. The fanout buffers accept an input from

DC to 134MHz and provide 5 or 9 outputs of the same

frequency. A typical PL123-09N application for driving

SDRAM in PC systems would use eight outputs to

drive two DIMMs, or four SO-DIMMs, with the re-

maining output used for driving an external feed-

back to a PLL. A typical PL123-05N application is

to fanout a low noise CMOS clock oscillat or to 5

low noise CMOS clocks.

These parts are not intended for 5V input-tolerant ap-

plications.

BLOCK DIAGRAM AND PACKAGE PINOUT

REF

CLK1

CLK2

CLK3

CLK4

CLK5

CLK6

CLK7

CLK8

CLK9

1

REF

CLK1

CLK2

VDD

CLK9

CLK8

CLK7

VDD

GND

CLK6

CLK5

GND

10

11

12

13

14

15

16

9

8

7

6

5

4

3

2

VDD

CLK4

CLK3

GND

SOP-16L

REF

CLK1

CLK2

CLK3

CLK4

CLK5

1

REF

CLK1

CLK2

GND

CLK5

CLK4

VDD

CLK3

5

6

7

8

4

3

2

SOP-8L

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PL123-05N Datasheet(PDF) 1 Page - Micrel Semiconductor

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