Integrated
Circuit
Systems, Inc.
ICS8533-11
LOW SKEW, 1-TO-4, CRYSTAL OSCILLA TOR/
DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER
GENERAL DESCRIPTION
,&6
HiPerClockS™
able differential clock or crystal inputs. The CLK, nCLK pair
can accept most standard differential input levels. The clock
enable is internally synchronized to eliminate runt pulses on
the outputs during asynchronous assertion/deassertion of the
clock enable pin.
Guaranteed output and part-to-part skew characteristics
make the ICS8533-11 ideal for those applications demanding well defined performance and repeatability.
The ICS8533-11 is a low skew , high performance
1-to-4 Crystal Oscillator/Differential-to-3.3V
LVPECL fanout buffer and a member of the
HiPerClockS™ family of High Performance Clock
Solutions from ICS. The ICS8533-1 1 has select-
FEATURES
• 4 differential 3.3V LVPECL outputs
• Selectable CLK, nCLK or crystal inputs
• CLK, nCLK pair can accept the following differential input
levels: L VDS, L VPECL, L VHSTL, SSTL, HCSL
• Maximum output frequency up to 650MHz
• Translates any single-ended input signal to 3.3V
L VPECL levels with resistor bias on nCLK input
• Output skew: 30ps (maximum)
• Part-to-part skew: 150ps (maximum)
• Propagation delay: 2ns (maximum)
• 3.3V operating supply
• 0°C to 70°C ambient operating temperature
• Industrial temperature information available upon request
BLOCK DIAGRAM PIN ASSIGNMENT
CLK_EN
CLK
nCLK
XTAL1
XTAL2
CLK_SEL
D
Q
LE
0
1
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
6.5mm x 4.4mm x 0.92 Package Body
VEE
CLK_EN
CLK_SEL
CLK
nCLK
XTAL1
XTAL2
nc
nc
V
CC
ICS8533-11
20-Lead TSSOP
20
1
19
2
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
10
G Package
Top View
Q0
nQ0
V
CC
Q1
nQ1
Q2
nQ2
V
CC
Q3
nQ3
8533AG-11 www.icst.com/products/hiperclocks.html REV. D JULY 16, 2001
1
Integrated
Circuit
Systems, Inc.
TABLE 1. PIN DESCRIPTIONS
rebmuNemaNepyTnoitpircseD
1V
2NE_KLCtupnIpulluP
3LES_KLCtupnInwodlluP
4KLCtupnInwodlluP.tupnikcolclaitnereffidgnitrevni-noN
5KLCntupnIpulluP.tupnikcolclaitnereffidgnitrevnI
61LATXtupnInwodlluP.tupnirotallicsolatsyrC
72LATXtupnIpulluP.tupnirotallicsolatsyrC
9,8cndesunU.tcennocoN
81,31,01V
21,113Q,3QntuptuO.slevelecafretniLCEPVL.stuptuokcolclaitnereffiD
51,412Q,2QntuptuO.slevelecafretniLCEPVL.stuptuokcolclaitnereffiD
71,611Q,1QntuptuO.slevelecafretniLCEPVL.stuptuokcolclaitnereffiD
02,910Q,0QntuptuO.slevelecafretniLCEPVL.stuptuokcolclaitnereffiD
pulluP
:ETON
EE
CC
dna
nwodlluP
rewoP.dnuorgottcennoC.nipylppusevitageN
rewoP.V3.3ottcennoC.snipylppusevitisoP
ICS8533-11
LOW SKEW, 1-TO-4, CRYSTAL OSCILLA TOR/
DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER
kcolcswollofstuptuokcolc,HGIHnehW.elbanekcolcgninorhcnyS
decroferastuptuoQn,woldecroferastuptuoQ,WOLnehW.tupni
.slevelecafretniLTTVL/SOMCVL.hgih
.tupniKLCn,KLCstceles,WOLnehW.tupnitceleskcolC
.slevelecafretniLTTVL/SOMCVL.tupniLATXstceles,HGIHnehW
.seulavlacipytrof,scitsiretcarahcniP,2elbaTeeS.srotsisertupnilanretniotsrefer
TABLE 2. PIN CHARACTERISTICS
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
C
NI
R
PULLUP
R
NWODLLUP
ecnaticapaCtupnI
rotsiseRpulluPtupnI 15KΩ
rotsiseRnwodlluPtupnI 15KΩ
KLCn,KLC4Fp
LES_KLC,NE_KLC4Fp
REV. D JULY 16, 2001
2
Integrated
Circuit
Systems, Inc.
TABLE 3A. CONTROL INPUT FUNCTION TABLE
stupnIstuptuO
NE_KLCLES_KLCecruoSdetceleS3Qurht0Q3Qnurht0Qn
00 KLCn,KLCWOL;delbasiDHGIH;delbasiD
01 2LATX,1LATXWOL;delbasiDHGIH;delbasiD
10 KLCn,KLCdelbanEdelbanE
11 2LATX,1LATXdelbanEdelbanE
ninwohssaegderotallicsolatsyrc
.B3elbaTni
ICS8533-11
LOW SKEW, 1-TO-4, CRYSTAL OSCILLA TOR/
DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER
rokcolctupnignillafdnagnisiragniwolofdelbanerodelbasiderastuptuokcolceht,sehctiwsNE_KLCretfA
1erugiF
.
debircsedsastupni2LATX,1LATXdnaKLCn,KLCehtfonoitcnufaerastuptuoehtfoetatseht,edomevitcaehtnI
nCLK
Disabled
CLK
CLK_EN
nQ0 - nQ3
Q0 - Q3
TABLE 3B. CLOCK INPUT FUNCTION TABLE
stupnIstuptuO
KLCKLCn3Qurht0Q3Qnurht0Qn
01WOLHGIHlaitnereffiDotlaitnereffiDgnitrevnInoN
10 HGIHWOLlaitnereffiDotlaitnereffiDgnitrevnInoN
01ETON;desaiBWOLHGIHlaitnereffiDotdednEelgniSgnitrevnInoN
11ETON;desaiBHGIHWOLlaitnereffiDotdednEelgniSgnitrevnInoN
1ETON;desaiB0HGIHWOLlaitnereffiDotdednEelgniSgnitrevnI
1ETON;desaiB1WOLHGIHlaitnereffiDotdednEelgniSgnitrevnI
.sleveldedneelgnistpeccaottupni
Enabled
FIGURE 1 - CLK_EN TIMING DIAGRAM
edoMtuptuOottupnIytiraloP
laitnereffidehtgniriwsessucsidhcihw,21erugiF,01egapnonoitcesnoitamrofnInoitacilppAehtotreferesaelP:1ETON
8533AG-11 www.icst.com/products/hiperclocks.html REV. D JULY 16, 2001
3
Integrated
Circuit
Systems, Inc.
LOW SKEW, 1-TO-4, CRYSTAL OSCILLA TOR/
ICS8533-11
DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
Inputs, V
Outputs, V
I
O
Package Thermal Impedance, θ
Storage Temperature, T
CCx
JA
STG
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 beyond those
listed in the
DC Characteristics
or
AC Characteristics
extended periods may affect product reliability .
4.6V
-0.5V to VCC + 0.5V
-0.5V to VCC + 0.5V
73.2°C/W (0lfpm)
-65°C to 150°C
is not implied. Exposure to absolute maximum rating conditions for
TABLE 4A. POWER SUPPLY DC CHARACTERISTICS, V
= 3.3V±5%, TA = 0°C TO 70°C
CC
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
CC
I
EE
egatloVylppuSrewoP531.33.3564.3V
tnerruCylppuSrewoP 05Am
TABLE 4B. LVCMOS / LVTTL DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
HI
V
LI
I
HI
I
LI
egatloVhgiHtupnI
egatloVwoLtupnI
tnerruChgiHtupnI
tnerruCwoLtupnI
TABLE 4C. DIFFERENTIAL DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
I
HI
I
LI
V
PP
V
RMC
2,1ETON
tnerruChgiHtupnI
tnerruCwoLtupnI
,NE_KLC
LES_KLC
,NE_KLC
LES_KLC
NE_KLCV
LES_KLCV
NE_KLCV
LES_KLCV
NI
NI
= 3.3V±5%, TA = 0°C TO 70°C
CC
KLCnV
KLCV
KLCnV
KLCV
egatloVtupnIkaeP-ot-kaeP 51.03.1V
;egatloVtupnIedoMnommoC
VsadenifedsiegatlovedomnommoC:2ETON
.
= 3.3V±5%, TA = 0°C TO 70°C
CC
V=
NI
CC
V=
NI
CC
V,V0=
V,V0=
V=
CC
NI
V=
CC
NI
CC
CC
V564.3=5Aµ
V564.3=051Aµ
CC
CC
V564.3=051-Aµ
V564.3=5-Aµ
V564.3=5Aµ
V564.3=051Aµ
V,V564.3=
V0=051-Aµ
NI
V,V564.3=
V0=5-Aµ
NI
2567.3V
3.0-8.0V
V
5.0+V
EE
VsiKLCndnaKLCrofegatlovtupnimumixamehtsnoitacilppadedneelgnisroF:1ETON
CC
.V3.0+
58.0-V
CC
REV. D JULY 16, 2001
4
Integrated
Circuit
Systems, Inc.
ICS8533-11
LOW SKEW, 1-TO-4, CRYSTAL OSCILLA TOR/
DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER
TABLE 4D. LVPECL DC CHARACTERISTICS, V
= 3.3V±5%, TA = 0°C TO 70°C
CC
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
HO
V
LO
V
GNIWS
1ETON;egatloVhgiHtuptuOV
1ETON;egatloVwoLtuptuOV
-4.1V
CC
0.2-V
CC
gniwSegatloVtuptuOkaeP-ot-kaeP6.058.0V
05htiwdetanimretstuptuO:1ETON Ω Vot
.V2-
CC
TABLE 5. CRYSTAL CHARACTERISTICS
retemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
noitallicsOfoedoM latnemadnuF
ecnareloTycneuqerF 05-05mpp
ytilibatSycneuqerF 001-001mpp
leveLevirD 1.0Wm
)RSE(ecnatsiseRseireStnelaviuqE 0508
ecnaticapaCtnuhS 7Fp
ecnatcudnIniPseireS 37Hn
egnaRerutarepmeTgnitarepO 007C°
gnigAC°52@raeyreP5-5mpp
egnaRycneuqerF 4152zHM
0.1-V
CC
7.1-V
CC
Ω
TABLE 6. AC CHARACTERISTICS, V
= 3.3V±5%, TA = 0°C TO 70°C
CC
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
f
XAM
t
DP
t
)o(ks5,2ETON;wekStuptuO 03sp
t
)pp(ks5,3ETON;wekStraP-ot-traP 051sp
t
R
t
F
emiTesiRtuptuOzHM05@%08ot%02003007sp
emiTllaFtuptuOzzHM05@%08ot%02003007sp
ycneuqerFtupnImumixaM 056zHM
1ETON;yaleDnoitagaporP IJ zHM0560.10.2sn
cdo4ETON;elcyCytuDtuptuO740535%
LOTcsoecnarelloTrotallicsOlatsyrC DBTmpp
.esiwrehtodetonsselnuzHM005taderusaemsretemarapllA
.rettijddatonseodtrapehT.tuptuoehtnorettijehtlauqelliwtupniehtnorettijelcyc-ot-elcycehT
.tniopgnissorctuptuolaitnereffidehtottniopgnissorctupnilaitnereffidehtmorfderusaeM:1ETON
.snoitidnocdaollauqehtiwdnaegatlovylppusemasehttastuptuoneewtebwekssadenifeD:2ETON
.stniopssorclaitnereffidtuptuoehttaderusaeM
segatlovylppusemasehttagnitareposecivedtnereffidnostuptuoneewtebwekssadenifeD:3ETON
derusaemerastuptuoeht,ecivedhcaenostupnifoepytemasehtgnisU.snoitidnocdaollauqehtiwdna
.stniopssorclaitnereffidehtta
.etoNnoitacilppAotrefer,tupniLATXroF.KLCgnisuderusaeM:4ETON
.56dradnatSCEDEJhtiwecnadroccanidenifedsiretemarapsihT:5ETON
8533AG-11 www.icst.com/products/hiperclocks.html REV. D JULY 16, 2001
5
Loading...