ICS840002AI01 datasheet(1/12 Pages) ICST

Part #	ICS840002AI01

Description	FEMTOCLOCKS??CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PDF	12 Pages

Scroll/Zoom	100%

Manufacturer	ICST [Integrated Circuit Systems]

Direct Link	http://www.icst.com

Logo

1 / 12 page

Integrated

Circuit

Systems, Inc.

840002AGI-01

www.icst.com/products/hiperclocks.html

REV. A MARCH 3, 2005

1

ICS840002I-01

FEMTOCLOCKS™CRYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

GENERAL DESCRIPTION

The ICS840002I-01 is a 2 output LVCMOS/LVTTL

Synthesizer optimized to generate Ethernet

reference clock frequencies and is a member of

the HiPerClocksTM family of high performance

clock solutions from ICS. Using a 25MHz 18pF

parallel resonant crystal, the following frequencies can be

generated based on the 2 frequency select pins (F_SEL1:0):

156.25MHz, 125MHz, and 62.5MHz. The ICS840002I-01 uses

ICS’ 3rd generation low phase noise VCO technology and can

achieve 1ps or lower typical random rms phase jitter, easily

meeting Ethernet jitter requirements. The ICS840002I-01 is

packaged in a small 16-pin TSSOP package.

HiPerClockS™

ICS

BLOCK DIAGRAM

PIN ASSIGNMENT

F_SEL0

nXTAL_SEL

TEST_CLK

OE

MR

nPLL_SEL

VDDA

VDD

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

F_SEL1

GND

Q0

Q1

VDDO

XTAL_IN

XTAL_OUT

ICS840002I-01

16-Lead TSSOP

4.4mm x 5.0mm x 0.92mm

package body

G Package

Top View

FEATURES

• Two LVCMOS/LVTTL outputs @ 3.3V,

17

Ω typical output impedance

• Selectable crystal oscillator interface

or LVCMOS single-ended input

• Supports the following output frequencies:

156.25MHz, 125MHz and 62.5MHz

• Output frequency range: 56MHz - 175MHz

• VCO range: 560MHz - 700MHz

• Output skew: 12ps (maximum)

• RMS phase jitter at 156.25MHz (1.875MHz - 20MHz):

0.47ps (typical)

Phase noise:

Offset

Noise Power

100Hz ............... -97.4 dBc/Hz

1KHz .............. -120.2 dBc/Hz

10KHz .............. -127.6 dBc/Hz

100KHz .............. -126.1 dBc/Hz

• Power supply modes:

Core/Output

3.3V/3.3V

3.3V/2.5V

2.5V/2.5V

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

• Lead-Free package RoHS compliant

Q0

Q1

OE

F_SEL1:0

nPLL_SEL

nXTAL_SEL

XTAL_IN

XTAL_OUT

TEST_CLK

MR

OSC

Phase

Detector

VCO

M = ÷25 (fixed)

F_SEL1:0

0 0 ÷4

0 1 ÷5

1 0 ÷10

1 1 ÷5

0

1

0

2

N

25MHz

Pullup

Pulldown

Pullup:Pullup

Pulldown

FREQUENCY SELECT FUNCTION TABLE

s

t

u

p

n

I

y

c

n

e

u

q

e

r

F

t

u

p

t

u

O

)

.

f

e

R

z

H

M

5

2

(

1

L

E

S

_

F0

L

E

S

_

Fe

u

l

a

V

r

e

d

i

v

i

D

Me

u

l

a

V

r

e

d

i

v

i

D

N

00

5

24

5

2

.

6

5

1

01

5

25

5

2

1

10

5

20

15

.

2

6

11

5

25

5

2

1

Similar Part No. - ICS840002AI01

Manufacturer	Part #	Datasheet	Description
Integrated Circuit Syst...	ICS840002AI	205Kb / 13P	FEMTOCLOCKS??CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER

More results

Similar Description - ICS840002AI01

Manufacturer	Part #	Datasheet	Description
Integrated Circuit Syst...	ICS840004	310Kb / 13P	FEMTOCLOCKS CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER REV. A SEPTEMBER 16, 2004
	ICS840001-34	167Kb / 9P	FEMTOCLOCKS??CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
	ICS840002	205Kb / 13P	FEMTOCLOCKS??CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
	ICS840004-11	172Kb / 10P	FEMTOCLOCKS??CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
	ICS840004I	168Kb / 11P	FEMTOCLOCKS??CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER REV. A JUNE 28, 2005
	ICS840008-01	192Kb / 13P	FEMTOCLOCKS??CRYSTAL-TO-LVCMOS/LVTTL FREQUENCY SYNTHESIZER REV. A APRIL 7, 2005
	ICS840021I	186Kb / 11P	FEMTOCLOCKS??CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER REV. A MAY 19, 2005
	ICS840051I	210Kb / 10P	FEMTOCLOCKS??CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER REV. A JANUARY 14, 2005
Integrated Device Techn...	ICS840002I-01	264Kb / 13P	FEMTOCLOCKS??CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
Integrated Device Techn...	840001I-34	197Kb / 15P	Femtoclocks Crystal-to-LVCMOS/LVTTL Frequency Synthesizer

More results

ICS840002AI01 Datasheet(PDF) 1 Page - Integrated Circuit Systems

ICS840002AI01 Datasheet(HTML) 1 Page - Integrated Circuit Systems

Similar Part No. - ICS840002AI01

Similar Description - ICS840002AI01

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

Datasheet Download

Link URL