ICS844246DI datasheet(1/21 Pages) RENESAS

номер детали	ICS844246DI

подробное описание детали	FemtoClock® Crystal-to-LVDS Frequency Synthesizer w/Integrated Fanout Buffer

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производитель	RENESAS [Renesas Technology Corp]

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DATA SHEET

ICS844246DGI REVISION A NOVEMBER 28, 2012

1

FemtoClock® Crystal-to-LVDS Frequency

Synthesizer w/Integrated Fanout Buffer

ICS844246DI

General Description

The ICS844246DI is a Crystal-to-LVDS Clock Synthesizer/Fanout

Buffer designed for Fibre Channel frequencies and Gigabit Ethernet

applications. The output frequency can be set using the frequency

select pins and a 25MHz crystal for Ethernet frequencies, or a

26.5625MHz crystal for a Fibre Channel. The low phase noise

characteristics of the ICS844246DI make it an ideal clock for these

demanding applications.

Features

• Six LVDS output pairs

• Crystal oscillator interface

• Output frequency range: 53.125MHz to 333.3333MHz

• Crystal input frequency range: 25MHz to 33.333MHz

• RMS phase jitter @ 125MHz, using a 25MHz crystal

(1.875MHz - 20MHz): 0.416ps (typical)

• Full 3.3V or mixed 3.3V core, 2.5V output supply modes

• -40°C to 85°C ambientoperating temperature

• Available in lead-free (RoHS 6) package

Select Function Table

Inputs

Function

FB_SEL

N_SEL1

N_SEL0

M Divide

N Divide

M/N

000

20

2

10

001

20

4

5

010

20

5

4

0

1

20

8

2.5 (default)

100

24

3

8

101

24

4

6

110

24

6

4

1

24

12

2

Block Diagram

OSC

PLL

M

Feedback

Divider

1

0

Q0

nQ0

Q1

nQ1

Q2

nQ2

Q3

nQ3

Q4

nQ4

Q5

nQ5

XTAL_IN

XTAL_OUT

PLL_BYPASS

FB_SEL

N_SEL0

Pullup

Pulldown

N_SEL1

N

Output

Divider

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

VDDO

Q3

VDDO

VDDA

nQ3

nQ2

Q4

Q2

nQ4

nQ1

Q5

Q1

nQ5

nQ0

N_SEL1

N_SEL0

VDD

XTAL_OUT

FB_SEL

XTAL_IN

Q0

GND

PLL_BYPASS

GND

ICS844246DI

24-Lead TSSOP, E-Pad

4.4mm x 7.8mm x 0.925

mm

package body

G Package

Top View

Pin Assignment

Аналогичный номер детали - ICS844246DI

производитель	номер детали	датащи	подробное описание детали
Renesas Technology Corp	ICS844246D	1Mb / 19P	FemtoClock® Crystal-to-LVDS Frequency Synthesizer w/Integrated Fanout Buffer OCTOBER 20, 2011

More results

Аналогичное описание - ICS844246DI

производитель	номер детали	датащи	подробное описание детали
Integrated Circuit Syst...	ICS844246	187Kb / 13P	FEMTOCLOCKS??CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
Integrated Circuit Syst...	ICS844256	213Kb / 13P	FEMTOCLOCKS??CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
Integrated Device Techn...	ICS844246	981Kb / 16P	FEMTOCLOCKS??CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
	ICS844246I	415Kb / 16P	FEMTOCLOCKS??CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
	ICS844256	1Mb / 16P	FEMTOCLOCKS??CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
	84427	198Kb / 16P	Crystal-to-LVDS Integrated Frequency Synthesizer/Fanout Buffer
Renesas Technology Corp	84427	400Kb / 17P	Crystal-to-LVDS Integrated Frequency Synthesizer/Fanout Buffer 5/6/15
	ICS844246D	1Mb / 19P	FemtoClock® Crystal-to-LVDS Frequency Synthesizer w/Integrated Fanout Buffer OCTOBER 20, 2011
	ICS844256D	1Mb / 19P	FemtoClock® Crystal-to-LVDS Frequency Synthesizer w/Integrated Fanout Buffer AUGUST 5, 2010
	ICS844256DI	1Mb / 19P	FemtoClock® Crystal-to-LVDS Frequency Synthesizer w/Integrated Fanout Buffer AUGUST 5, 2010

More results

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