ICS840001CK-32LF - Integrated Circuit Systems, Inc.

840001CK-32 www.icst.com/products/hiperclocks.html REV. A NOVEMBER 23, 2005

Integrated

Circuit

Systems, Inc.

ICS840001-32

FEMTOCLOCKS™ C RYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PRELIMINARY

GENERAL DESCRIPTION

The ICS840001-32 is a two output LVCMOS/

LVTTL Synthesizer and is a member of the

HiPerClocksTM family of high performance

devices from ICS. The device uses a 40MHz

crystal to provide a 40MHz reference clock

output and to synthesize a 100MHz or 106.25MHz

output. The ICS840001-32 has excellent <1ps phase

jitter performance over the 637kHz – 5MHz integration

range. The ICS840001-32 is packaged in a 3mm x 3mm

16-pin VFQFN, making it ideal for use on space con-

strained boards.

FEATURES

•One LVCMOS/LVTTL output, 15Ω typical output

impedence and one reference clock output

•40MHz, 10pF parallel resonant crystal

•Output frequencies: 100MHz or 106.25MHz

•RMS phase jitter @ 106.25MHz, using a 40MHz crystal

(637kHz - 5MHz): 0.78ps (typical)

•3.3V operating supply

•0°C to 70°C ambient operating temperature

•Availabe in both standard and lead-free RoHS-compliant

packages

HiPerClockS™

ICS

BLOCK DIAGRAM PIN ASSIGNMENT

OSC Synthesizer

XTAL_IN

XTAL_OUT

SEL

ICS840001-32

16-Lead VFQFN

3mm x 3mm x 0.95 package body

K Package

Top View

VDD

XTAL_OUT

XTAL_IN

SEL

VDDO_Q

VDD

REF_OUT

GND

VDDO_REF_OUT

GND

VDDA

GND

5 6 7 8

16 15 14 13

REF_OUT

(Pullup)

FUNCTION TABLE

40MHz

100MHz or

106.25MHz

stupnIstuptuO

ycneuqerFlatsyrC

)zHM( tupnILES tuptuOQ

)zHM(ycneuqerF

TUO_FER

)zHM(ycneuqerF

040 00104

041 52.60104

The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on

initial product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications

without notice.

840001CK-32 www.icst.com/products/hiperclocks.html REV. A NOVEMBER 23, 2005

Integrated

Circuit

Systems, Inc.

ICS840001-32

FEMTOCLOCKS™ C RYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PRELIMINARY

TABLE 2. PIN CHARACTERISTICS

TABLE 1. PIN DESCRIPTIONS

rebmuNemaNepyTnoitpircseD

01,1V

rewoP.nipylppuseroC

3,2 ,TUO_LATX

NI_LATX tupnI .tupniehtsiNI_LATX.ecafretnirotallicsolatsyrC

.tuptuoehtsiTU

O_LATX

4LEStupnIpulluP.slevelecafretniLTTVL/SOMCVL.tupnitceleS

31,8,5DNGrewoP.dnuorgylppusrewoP

51,41,6cndesunU.tc

ennocoN

TUO_FER_ODD

rewoPtuptuoTUO_FERrofnipylppustuptuO

9TUO_FERtuptuO .tuptuokcolcecnereferetats-eerhtdedne-elgniS

51.slevele

cafretniLTTVL/SOMCVL Ω.ecnadepmituptuolacipyt

11V

Q_ODD

rewoP.tuptuoQrofnipylppustuptuO

21Q tuptuO .slevelecafretniLTTVL/SOMCVL.tuptuokcolcdedne-elgniS

51 Ω.ecnadepm

ituptuolacipyt

61V

ADD

rewoP.nipylppusgolanA

:ETON pulluP .seulavlacipytrof,scitsiretcarahCniP,2elbaTeeS.srotsisertupnilanretnio

tsrefer

lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

ecnaticapaCtupnI 4Fp

ecnaticapaCnoitapissiDrewoP V

,ADD

,TUO_FER_ODD

Q_ODD

V564.3 8Fp

PULLUP

rotsiseRpulluPtupnI 15kΩ

TUO

ecnadepmItuptuO 51 Ω

840001CK-32 www.icst.com/products/hiperclocks.html REV. A NOVEMBER 23, 2005

Integrated

Circuit

Systems, Inc.

ICS840001-32

FEMTOCLOCKS™ C RYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PRELIMINARY

TABLE 3A. POWER SUPPLY DC CHARACTERISTICS, VDD = VDDA = VDDO_REF_OUT = VDDO_Q = 3.3V±5%, TA = 0°C TO 70°C

TABLE 4. CRYSTAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, V

DD 4.6V

Inputs, VI-0.5V to VDD + 0.5 V

Outputs, VO-0.5V to VDDO + 0.5V

Package Thermal Impedance, θJA 51.5°C/W (0 lfpm)

Storage Temperature, T

STG -65°C to 150°C

NOTE: Stresses beyond those listed under Absolute

Maximum Ratings may cause permanent damage to the

device. These ratings are stress specifications only. Functional

operation of product at these conditions or any conditions be-

yond those listed in the DC Characteristics or AC Character-

istics is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect product reliability.

TABLE 3B. LVCMOS/LVTTL DC CHARACTERISTICS, VDD = VDDA = VDDO_REF_OUT = VDDO_Q = 3.3V±5%, TA = 0°C TO 70°C

retemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

noitallicsOfoedoM latnemadnuF

ycneuqerF 04zHM

)RSE(ecnatsiseRs

eireStnelaviuqE 05 Ω

ecnaticapaCtnuhS 7Fp

leveLevirD 01001Wµ

lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

egatloVhgiHtupnI 2V

3.0+V

egatloVwoLtupnI 3.0-8.0V

tnerruChgiHtupnIV

V564.3=5Aµ

tnerruCwoLtupnIV

V,V564.3=

V0=051-Aµ

1ETON;egatloVhgiHtuptuO 6.2V

1ETON;egatloVwoLtuptuO 5.0V

05htiwdetanimretstuptuO:1ETON ΩVot

x_ODD

,noitceSnoitamrofnItnemerusaeMretemaraPeeS2/

."tiucriCtseTdaoLtuptuOV3.3"

lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

egatloVylppuSeroC 531.33.3564.3V

ADD

egatloVylppuSgolanA 531.33.3564.3V

ODD

egatloVylppuStuptuO 531.33.3564.3V

tnerruCylppuSrewoP 07Am

ADD

tnerruCylppuSgolanA 52Am

ODD

tnerruCylppuStuptuO 21Am

840001CK-32 www.icst.com/products/hiperclocks.html REV. A NOVEMBER 23, 2005

Integrated

Circuit

Systems, Inc.

ICS840001-32

FEMTOCLOCKS™ C RYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PRELIMINARY

TABLE 5. AC CHARACTERISTICS, VDD = VDDA = VDDO_REF_OUT = VDDO_Q = 3.3V±5%, TA = 0°C TO 70°C

lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

TUO

ycneuqerFtuptuO TUO_FER0=LES_f001zHM

Q1=LES_f52.601zHM

t)Ø(tij)modnaR(rettiJesahPSMR

:egnaRnoitargetnI,zHM001

zHM

5otzHk736 38.0sp

:egnaRnoitargetnI,zHM52.601

zHM5otzHk736 87.0sp

emiTllaF/esiRtuptuO%08ot%02009sp

cdoelcyCytuDtuptuO 05%

.zHM52.601dnazHM001@deziretcarahcerasretemarapllA

840001CK-32 www.icst.com/products/hiperclocks.html REV. A NOVEMBER 23, 2005

Integrated

Circuit

Systems, Inc.

ICS840001-32

FEMTOCLOCKS™ C RYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PRELIMINARY

10 100 1k 10k 100k 1M

TYPICAL PHASE NOISE AT 106.25MHZ

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

-110

-120

-130

-140

-150

-160

-170

-180

-190

-200

106.25MHz

RMS Phase Jitter (Random)

637kHz to 5MHz = 0.78ps (typical)

OFFSET FREQUENCY (HZ)

NOISE POWER dBc

Phase Noise Result by adding

Fibre Channel Filter to raw data

Raw Phase Noise Data

Fibre Channel Filter

➤

840001CK-32 www.icst.com/products/hiperclocks.html REV. A NOVEMBER 23, 2005

Integrated

Circuit

Systems, Inc.

ICS840001-32

FEMTOCLOCKS™ C RYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PRELIMINARY

PARAMETER MEASUREMENT INFORMATION

OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD OUTPUT RISE/FALL TIME

3.3V OUTPUT LOAD AC TEST CIRCUIT

SCOPE

LVCMOS

1.65V ± 5%

-1.65V ± 5%

Clock

Outputs

20%

80% 80%

20%

tPERIOD

tPW

tPERIOD

odc =

DDOX

x 100%

tPW

GND

VDD,

VDDA,

VDDO_X

RMS PHASE JITTER

Phase Noise Mas

Offset Frequency

Phase Noise Plot

RMS Jitter = Area Under the Masked Phase Noise Plot

Noise Power

840001CK-32 www.icst.com/products/hiperclocks.html REV. A NOVEMBER 23, 2005

Integrated

Circuit

Systems, Inc.

ICS840001-32

FEMTOCLOCKS™ C RYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PRELIMINARY

APPLICATION INFORMATION

Figure 2. CRYSTAL INPUt INTERFACE

CRYSTAL INPUT INTERFACE

The ICS840001-32 has been characterized with 10pF paral-

lel resonant crystals. The capacitor values, C1 and C2, shown

in Figure 2 below were determined using a 40MHz, 10pF

parallel resonant crystal and were chosen to minimize the

ppm error. The optimum C1 and C2 values can be slightly

adjusted for different board layouts.

As in any high speed analog circuitry, the power supply pins are

vulnerable to random noise. The ICS840001-32 provides sepa-

rate power supplies to isolate any high switching noise from

the outputs to the internal PLL. VDD, VDDA and VDDO_X should be

individually connected to the power supply plane through

vias, and bypass capacitors should be used for each pin. To

achieve optimum jitter performance, power supply isolation

is required. Figure 1 illustrates how a 10Ω resistor along with

a 10μF and a .01μF bypass capacitor should be connected to

each VDDA pin. The 10Ω resistor can also be replaced by a

ferrite bead.

POWER SUPPLY FILTERING TECHNIQUES

FIGURE 1. POWER SUPPLY FILTERING

10Ω

VDDA

10μF

.01μF

3.3V

.01μF

VDD

Crystal

XTAL_IN

XTAL_OUT

840001CK-32 www.icst.com/products/hiperclocks.html REV. A NOVEMBER 23, 2005

Integrated

Circuit

Systems, Inc.

ICS840001-32

FEMTOCLOCKS™ C RYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PRELIMINARY

RELIABILITY INFORMATION

TRANSISTOR COUNT

The transistor count for ICS840001-32 is: 2121

TABLE 7. θJAVS. AIR FLOW TABLE FOR 16 LEAD VFQFN

θθ

θJA vs. 0 Air Flow (Linear Feet per Minute)

Multi-Layer PCB, JEDEC Standard Test Boards 51.5°C/W

840001CK-32 www.icst.com/products/hiperclocks.html REV. A NOVEMBER 23, 2005

Integrated

Circuit

Systems, Inc.

ICS840001-32

FEMTOCLOCKS™ C RYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PRELIMINARY

PACKAGE OUTLINE - K SUFFIX FOR 16 LEAD VFQFN

TABLE 8. PACKAGE DIMENSIONS

Reference Document: JEDEC Publication 95, MO-220

NOITAIRAVCEDEJ

SRETEMILLIMNISNOISNEMIDLLA

LOBMYSMUMINIMMUMIXAM

N61

A08.00.1

1A 050.0

3A ecnerefeR52.0

b81.003.0

eCIS

AB05.0

D0.3

2D 52.052.1

E0.3

2E 52.052.1

L03.005.0

840001CK-32 www.icst.com/products/hiperclocks.html REV. A NOVEMBER 23, 2005

Integrated

Circuit

Systems, Inc.

ICS840001-32

FEMTOCLOCKS™ C RYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

PRELIMINARY

TABLE 9. ORDERING INFORMATION

While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Incorporated (ICS) assumes no responsibility for either its use

or for infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use

in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability or other extraordinary environmental requirements are

not recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS

product for use in life support devices or critical medical instruments.

The aforementioned trademarks, HiPerClockS and FemtoClocks are trademarks of Integrated Circuit Systems, Inc. or its subsidiaries in the United States and/or other countries.

rebmuNredrO/traPgnikraMegakcaPgnigakcaPgnippihSerutarepmeT

23-KC100048SCI23C1NFQFVdaeL61yartC°07otC°0

T23-KC100

048SCI23C1NFQFVdaeL61leer&epat0052C°07otC°0

FL23-KC100048SCIDBTNFQFV"eerF-daeL"daeL61yartC°07otC°0

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48SCIDBTNFQFV"eerF-daeL"daeL61leer&epat0052C°07otC°0

.tnialpmocSHoReradnanoitarugifnoceerF-bPehterarebmunt

rapehtotxiffus"FL"nahtiwderedroeratahtstraP:ETON