ICS840001 datasheet(1/12 Pages) ICST

No de pièce	ICS840001

Description	FEMTOCLOCKS??CRYSTAL-TO-LVCMOS/LVTTL CLOCK GENERATOR

PDF	12 Pages

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Fabricant	ICST [Integrated Circuit Systems]

Site Internet	http://www.icst.com

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840001BG

www.icst.com/products/hiperclocks.html

REV. A MAY 10, 2004

1

Integrated

Circuit

Systems, Inc.

ICS840001

FEMTOCLOCKS™CRYSTAL-TO-

LVCMOS/LVTTL CLOCK GENERATOR

GENERAL DESCRIPTION

The ICS840001 is a Fibre Channel Clock

Generator and a member of the HiPerClocksTM

family of high performance devices from ICS. The

ICS840001 uses a 26.5625MHz crystal to

synthesize either 106.25MHz or 212.5MHz, using

the FREQ_SEL pin. The ICS840001 has excellent phase jitter

performance, over the 637KHz – 10MHz integration range.

The ICS840001 is packaged in a small 8-pin TSSOP, making

it ideal for use in systems with limited board space.

FEATURES

• 1 LVCMOS/LVTTL output, 7Ω typical output impedence

• Crystal oscillator interface designed for 26.5625MHz,

18pF parallel resonant crystal

• Selectable 106.25MHz or 212.5MHz output frequency

• VCO range: 560MHz to 680MHz

• RMS phase jitter @ 106.25MHz, using a 26.5625MHz crystal

(637KHz - 10MHz): 0.696ps (typical)

• RMS phase noise at 106.25MHz (typical)

Phase noise:

Offset

Noise Power

100Hz ............... -94.4 dBc/Hz

1KHz .............. -119.9 dBc/Hz

10KHz .............. -130.2 dBc/Hz

100KHz .............. -131.5 dBc/Hz

• 3.3V operating supply

• -30°C to 85°C ambient operating temperature

HiPerClockS™

ICS

ICS840001

8-Lead TSSOP

4.40mm x 3.0mm x 0.925mm

package body

G Package

Top View

VDDA

OE

XTAL_OUT

XTAL_IN

1

2

3

4

VDD

Q0

GND

FREQ_SEL

8

7

6

5

t

u

p

n

I

s

e

i

c

n

e

u

q

e

r

F

t

u

p

t

u

O

L

E

S

_

Q

E

R

F

0)

t

l

u

a

f

e

D

(

z

H

M

5

2

.

6

0

1

1z

H

M

5

.

2

1

2

z

H

M

5

2

6

5

.

6

2

:

l

a

t

s

y

r

C

BLOCK DIAGRAM

PIN ASSIGNMENT

FUNCTION TABLE

OSC

Phase

Detector

VCO

637.5MHz w/

26.5625MHz Ref.

M = ÷24 (fixed)

1

0

÷6

÷3

XTAL_IN

XTAL_OUT

OE

Q0

FREQ_SEL

(Pullup)

(Pulldown)

Numéro de pièce similaire - ICS840001

Fabricant	No de pièce	Fiches technique	Description
Integrated Circuit Syst...	ICS840001-31	164Kb / 9P	FEMTOCLOCKS-TM CRYSTAL -TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER REV. A MAY 4, 2005
	ICS840001-32	182Kb / 10P	FEMTOCLOCKS-TM CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER REV. A NOVEMBER 23, 2005
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	ICS840001AGI	175Kb / 11P	FEMTOCLOCKS??CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
	ICS840001AGIT	175Kb / 11P	FEMTOCLOCKS??CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER

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Fabricant	No de pièce	Fiches technique	Description
Integrated Circuit Syst...	ICS840011	190Kb / 11P	FEMTOCLOCKS CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR REV. A OCTOBER 15, 2004
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Integrated Device Techn...	840001I-34	197Kb / 15P	Femtoclocks Crystal-to-LVCMOS/LVTTL Frequency Synthesizer
Renesas Technology Corp	840011	403Kb / 14P	FemtoClock® Crystal-to-LVCMOS/ LVTTL Clock Generator 5/20/16
	840051	338Kb / 13P	FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR 9/1/15
	ICS840051I	368Kb / 13P	FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR 5/20/16
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