IDT ICS854S204AGI, ICS854S204AGILF Schematic [ru]
PRELIMINARY
LOW SKEW, DUAL, 1-TO-2 DIFFERENTIALTO-LVDS, LVPECL FANOUT BUFFER
GENERAL DESCRIPTION
ICS
HiPerClockS™
differential input levels. The ICS854S204I is characterized to
operate from either a 2.5V or a 3.3V power supply. Guaranteed output and bank skew characteristics make the
ICS854S204I ideal for those clock distribution applications
demanding well defined performance and repeatability.
SUPPLY MODE OPERATION T ABLE
V
The ICS854S204I is a l ow skew, high performance
dual, 1-to-2 Differential-to-LVDS, LVPECL Fanout
Buffer and a member of the HiPerClockS™ fam-
ily of High Performance Clock Solutions from IDT.
The CLKx, nCLKx pairs can accept most standard
noitarepOV3.3noitarepOV5.2
V3.3=V
DD
V
cn=V
PAT
V5.2=
DD
V5.2=
PAT
ICS854S204I
FEATURES
• Two differential LVDS or LVPECL output banks
• Two differential clock input pairs
• CLKx, nCLKx pairs can accept the following differential
input levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL
• Maximum output frequency: >3GHz
• Translates any single ended input signal to LVDS levels
with resistor bias on nCLKx inputs
• Output skew: <25ps (typical) design target
• Bank skew: <50ps (typical) design target
• Propagation delay: TBD
• Additive phase jitter, RMS: 0.15ps (typical)
• Full 3.3V or 2.5V power supply
• -40°C to 85°C ambient operating temperature
• Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
SEL_OUT FUNCTION TABLE
TUO_LESleveLtuptuO
0SDVL
1LCEPVL
BLOCK DIAGRAM PIN ASSIGNMENT
V
TAP
CLKA
nCLKA
CLKB
nCLKB
Pulldown
Pulldown
Pullup
Pulldown
Pullup
QA0
nQA0
QA1
nQA1
QB0
nQB0
QB1
nQB1
nCLKA
4.4mm x 5.0mm x 0.92mm package body
SEL_OUT
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial product
characterization. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
1
CLKA
QA0
nQA0
QA1
nQA1
V
TAP
GND
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
ICS854S204I
16-Lead TSSOP
G Package
Top View
nCLKB
CLKB
QB0
nQB0
QB1
nQB1
V
DD
SEL_OUT
IDT™ / ICS™ LVDS, LVPECL FANOUT BUFFER 1 ICS854S204AGI REV A AUGUST 14, 2006
ICS854S204I
LOW SKEW, DUAL, 1-TO-2 DIFFERENTIAL-TO-LVDS, LVPECL FANOUT BUFFER PRELIMINARY
TABLE 1. PIN DESCRIPTIONS
rebmuNemaNepyTnoitpircseD
1AKLCtupnInwodlluP.tupnikcolclaitnereffidgnitrevni-noN
2AKLCntupnIpulluP.tupnikcolclaitnereffidgnitrevnI
4,30AQn,0AQtuptuO .slevelecafretniLCEPVLroSDVL.riaptuptuolaitnereffiD
6,51AQn,1AQtuptuO .slevelecafretniLCEPVLroSDVL.riaptuptuolaitnereffiD
7V
PAT
rewoPVoteiT.nipylppusrewoP
8DNGrewoP.dnuorgylppusrewoP
9TUO_LEStupnInwodlluP.stuptuoLCEPVLroSDVLneewtebstceleS
01V
DD
rewoP.nipylppusrewoP
21,111BQ,1BQntuptuO .slevelecafretniLCEPVLroSDVL.riaptuptuolaitnereffiD
41,310BQ,0BQntuptuO .slevelecafretniLCEPVLroSDVL.riaptuptuolaitnereffiD
51BKLCtupnInwodlluP.tupnikcolclaitnereffidgnitrevni-noN
61BKLCntupnIpulluP.tupnikcolclaitnereffidgnitrevnI
pulluP
:ETON
dna
nwodlluP
DD
.noitarepoV5.2rof
.seulavlacipytrof,scitsiretcarahCniP,2elbaTeeS.srotsisertupnilanretniotrefer
TABLE 2. PIN CHARACTERISTICS
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
C
NI
R
PULLUP
R
NWODLLUP
ecnaticapaCtupnI 4Fp
rotsiseRpulluPtupnI 15kΩ
rotsiseRnwodlluPtupnI 15kΩ
TABLE 3. CLOCK INPUT FUNCTION TABLE
stupnIstuptuO
BKLCroAKLCBKLCnroAKLCn
01WOLHGIHlaitnereffiDotlaitnereffiDgnitrevnInoN
10 HGIHWOLlaitnereffiDotlaitnereffiDgnitrevnInoN
01ETON;desaiBWOLHGIHlaitnereffiDotdednEelgniSgnitrevnInoN
11ETON;desaiBHGIHWOLlaitnereffiDotdednEelgniSgnitrevnInoN
1ETON;desaiB0HGIHWOLlaitnereffiDotdednEelgniSgnitrevnI
1ETON;desaiB1WOLHGIHlaitnereffiDotdednEelgniSgnitrevnI
,1AQ,0AQ
1BQ,0BQ
,1AQn,0AQn
1BQn,0BQn
edoMtuptuOottupnIytiraloP
."sleveLdednEelgniStpeccAottupnIlaitnereffiDehtgniriW",noitamrofnInoitacilppAehtotreferesaelP:1ETON
IDT™ / ICS™ LVDS, LVPECL FANOUT BUFFER 2 ICS854S204AGI REV A AUGUST 14, 2006
ICS854S204I
LOW SKEW, DUAL, 1-TO-2 DIFFERENTIAL-TO-LVDS, LVPECL FANOUT BUFFER PRELIMINARY
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
Inputs, V
Outputs, I
I
O
(LVPECL)
DD
4.6V
-0.5V to V
+ 0.5 V
DD
Continuous Current 50mA
Surge Current 100mA
Outputs, I
(LVDS)
O
Continuous Current 10mA
Surge Current 15mA
Package Thermal Impedance, θ
Storage Temperature, T
(Junction-to-Ambient)
STG
89°C/W (0 lfpm)
JA
-65°C to 150°C
TABLE 4A. LVDS POWER SUPPLY DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
DD
I
DD
egatloVylppuSrewoP 531.33.3564.3V
tnerruCylppuSrewoP 001Am
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 beyond
those listed in the
implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability.
= 3.3V±5%, TA = -40°C TO 85°C
DD
DC Characteristics
or
AC Characteristics
is not
TABLE 4B. LVDS POWER SUPPLY DC CHARACTERISTICS, V
DD
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
DD
V
PAT
I
DD
I
PAT
egatloVylppuSrewoP 573.25.2526.2V
egatloVylppuSrewoP 573.25.2526.2V
tnerruCylppuSrewoP 59Am
tnerruCylppuSrewoP 5Am
TABLE 4C. LVPECL POWER SUPPLY DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
DD
I
DD
egatloVylppuSrewoP 531.33.3564.3V
tnerruCylppuSrewoP 001Am
TABLE 4D. LVPECL POWER SUPPLY DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
DD
V
PAT
I
DD
I
PAT
egatloVylppuSrewoP 573.25.2526.2V
egatloVylppuSrewoP 573.25.2526.2V
tnerruCylppuSrewoP 59Am
tnerruCylppuSrewoP 5Am
= V
= 2.5V±5%, TA = -40°C TO 85°C
TAP
= 3.3V±5%, TA = -40°C TO 85°C
DD
= V
DD
= 2.5V±5%, TA = -40°C TO 85°C
TAP
IDT™ / ICS™ LVDS, LVPECL FANOUT BUFFER 3 ICS854S204AGI REV A AUGUST 14, 2006
ICS854S204I
LOW SKEW, DUAL, 1-TO-2 DIFFERENTIAL-TO-LVDS, LVPECL FANOUT BUFFER PRELIMINARY
TABLE 4E. LVCMOS / LVTTL DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
HI
V
LI
I
HI
I
LI
TABLE 4F. DIFFERENTIAL DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
I
HI
I
LI
V
PP
V
RMC
2,1ETON
egatloVhgiHtupnI
egatloVwoLtupnI
tnerruChgiHtupnITUO_LESV
tnerruCwoLtupnITUO_LESV
V=
DD
DD
= 3.3V±5% OR VDD = V
DD
,AKLC
BKLC
tnerruChgiHtupnI
,AKLCn
V
BKLCn
,AKLC
BKLC
tnerruCwoLtupnI
,AKLCn
V
BKLCn
egatloVtupnIkaeP-ot-kaeP 51.03.1V
;egatloVtupnIedoMnommoC
.
VsadenifedsiegatlovedomnommoC:1ETON
HI
= 3.3V±5% OR VDD = V
DD
V
V
DD
V
V
DD
NI
V
DD
V3.3=2V
DD
V526.2=7.1V
V3.3=3.0-8.0V
DD
V526.2=3.0-7.0V
V,V526.2ro564.3=
NI
V=
NI
V564.3=
V526.2ro
DD
V
V0=
NI
V=
V
DD
NI
V564.3=
V526.2ro
DD
V0=
V
NI
= 2.5V±5%, TA = -40°C TO 85°C
TAP
3.0+V
CC
3.0+V
CC
V526.2roV564.3=051Aµ
V0=5-Aµ
= 2.5V±5%, TA = -40°C TO 85°C
TAP
051Aµ
,V526.2roV564.3=
5Aµ
5-Aµ
,V526.2roV564.3=
051-Aµ
5.0+DNGV
VsixKLCn,xKLCrofegatlovtupnimumixameht,snoitacilppadedneelgnisroF:2ETON
.V3.0+
58.0-V
DD
TABLE 4G. LVDS DC CHARACTERISTICS, V
= 3.3V±5%, TA = -40°C TO 85°C
DD
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
∆ V
V
∆ V
DO
V
DO
SO
SO
DO
egatloVtesffO0=TUO_LES53.1V
V
SO
egatloVtuptuOlaitnereffiD0=TUO_LES004Vm
egnahCedutingaM0=TUO_LES04Vm
egnahCedutingaM0=TUO_LES05Vm
.noitamrofnituptuorofnoitamrofnItnemerusaeMretemaraPotreferesaelP:ETON
TABLE 4H. LVDS DC CHARACTERISTICS, V
DD
= V
= 2.5V±5%, TA = -40°C TO 85°C
TAP
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
∆ V
V
∆ V
DO
V
DO
SO
SO
DO
egatloVtesffO0=TUO_LES3.1V
V
SO
egatloVtuptuOlaitnereffiD0=TUO_LES073Vm
egnahCedutingaM0=TUO_LES04Vm
egnahCedutingaM0=TUO_LES05Vm
.noitamrofnituptuorofnoitamrofnItnemerusaeMretemaraPotreferesaelP:ETON
IDT™ / ICS™ LVDS, LVPECL FANOUT BUFFER 4 ICS854S204AGI REV A AUGUST 14, 2006
ICS854S204I
LOW SKEW, DUAL, 1-TO-2 DIFFERENTIAL-TO-LVDS, LVPECL FANOUT BUFFER PRELIMINARY
TABLE 4I. LVPECL DC CHARACTERISTICS, V
= 3.3V±5% OR VDD = V
DD
= 2.5V±5%, TA = -40°C TO 85°C
TAP
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
HO
V
LO
V
GNIWS
TABLE 5A. LVDS AC CHARACTERISTICS, V
1ETON;egatloVhgiHtuptuO1=TUO_LESV
1ETON;egatloVwoLtuptuO1=TUO_LESV
4.1-V
DD
0.2-V
DD
gniwSegatloVtuptuOkaeP-ot-kaeP1=TUO_LES6.00.1V
05htiwdetanimretstuptuO:1ETON Ω Vot
.V2-
DD
= 3.3V ± 5%, TA = -40°C TO 85°C
DD
9.0-V
DD
7.1-V
DD
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
f
t
t
t
t
t
R/tF
XAM
DP
)o(ks4,2ETON;wekStuptuO
)b(ks4,3ETON;wekSknaB
tij
ycneuqerFtuptuO 3>zHG
1ETON;yaleDnoitagaporP DBTsn
52<
tegrat
05<
tegrat
;SMR,rettiJesahPevitiddAreffuB
noitceSrettiJesahPevitiddAotrefer
51.0sp
emiTllaF/esiRtuptuO%08ot%02052sp
sp
sp
cdoelcyCytuDtuptuO 05%
.esiwrehtodetonsselnuzHM005taderusaemsretemarapllA
.tniopgnissorctuptuolaitnereffidehtottniopgnissorctupnilaitnereffidehtmorfderusaeM:1ETON
.snoitidnocdaollauqehtiwdnaegatlovylppusemasehttastuptuoneewtebwekssadenifeD:2ETON
.stniopssorclaitnereffidtuptuoehtmorfderusaeM
.snoitidnocdaollauqehtiwdnaegatlovylppusemasehttastuptuofoknabanihtiwwekssadenifeD:3ETON
.56dradnatSCEDEJhtiwecnadroccanidenifedsiretemarapsihT:4ETON
TABLE 5B. LVDS AC CHARACTERISTICS, V
DD
= V
= 2.5V ± 5%, TA = -40°C TO 85°C
TAP
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
f
t
t
t
t
t
R/tF
XAM
DP
)o(ks4,2ETON;wekStuptuO
)b(ks4,3ETON;wekSknaB
tij
ycneuqerFtuptuO 3>zHG
1ETON;yaleDnoitagaporP DBTsn
52<
tegrat
05<
tegrat
;SMR,rettiJesahPevitiddAreffuB
noitceSrettiJesahPevitiddAotrefer
31.0sp
emiTllaF/esiRtuptuO%08ot%02052sp
sp
sp
cdoelcyCytuDtuptuO 05%
.esiwrehtodetonsselnuzHM005taderusaemsretemarapllA
.tniopgnissorctuptuolaitnereffidehtottniopgnissorctupnilaitnereffidehtmorfderusaeM:1ETON
.snoitidnocdaollauqehtiwdnaegatlovylppusemasehttastuptuoneewtebwekssadenifeD:2ETON
.stniopssorclaitnereffidtuptuoehtmorfderusaeM
.snoitidnocdaollauqehtiwdnaegatlovylppusemasehttastuptuofoknabanihtiwwekssadenifeD:3ETON
.56dradnatSCEDEJhtiwecnadroccanidenifedsiretemarapsihT:4ETON
IDT™ / ICS™ LVDS, LVPECL FANOUT BUFFER 5 ICS854S204AGI REV A AUGUST 14, 2006
ICS854S204I
LOW SKEW, DUAL, 1-TO-2 DIFFERENTIAL-TO-LVDS, LVPECL FANOUT BUFFER PRELIMINARY
TABLE 5C. LVPECL AC CHARACTERISTICS, V
= 3.3V ± 5%, TA = -40°C TO 85°C
DD
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
f
t
t
t
t
t
R/tF
XAM
DP
)o(ks4,2ETON;wekStuptuO
)b(ks4,3ETON;wekSknaB
tij
ycneuqerFtuptuO 3>zHG
1ETON;yaleDnoitagaporP DBTsn
52<
tegrat
05<
tegrat
;SMR,rettiJesahPevitiddAreffuB
noitceSrettiJesahPevitiddAotrefer
21.0sp
emiTllaF/esiRtuptuO%08ot%02052sp
sp
sp
cdoelcyCytuDtuptuO 05%
.esiwrehtodetonsselnuzHM005taderusaemsretemarapllA
.tniopgnissorctuptuolaitnereffidehtottniopgnissorctupnilaitnereffidehtmorfderusaeM:1ETON
.snoitidnocdaollauqehtiwdnaegatlovylppusemasehttastuptuoneewtebwekssadenifeD:2ETON
.stniopssorclaitnereffidtuptuoehtmorfderusaeM
.snoitidnocdaollauqehtiwdnaegatlovylppusemasehttastuptuofoknabanihtiwwekssadenifeD:3ETON
.56dradnatSCEDEJhtiwecnadroccanidenifedsiretemarapsihT:4ETON
TABLE 5D. LVPECL AC CHARACTERISTICS, V
DD
= V
= 2.5V ± 5%, TA = -40°C TO 85°C
TAP
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
f
t
t
t
t
t
R/tF
XAM
DP
)o(ks4,2ETON;wekStuptuO
)b(ks4,3ETON;wekSknaB
tij
ycneuqerFtuptuO 3>zHG
1ETON;yaleDnoitagaporP DBTsn
52<
tegrat
05<
tegrat
;SMR,rettiJesahPevitiddAreffuB
noitceSrettiJesahPevitiddAotrefer
70.0sp
emiTllaF/esiRtuptuO%08ot%02052sp
sp
sp
cdoelcyCytuDtuptuO 05%
.esiwrehtodetonsselnuzHM005taderusaemsretemarapllA
.tniopgnissorctuptuolaitnereffidehtottniopgnissorctupnilaitnereffidehtmorfderusaeM:1ETON
.snoitidnocdaollauqehtiwdnaegatlovylppusemasehttastuptuoneewtebwekssadenifeD:2ETON
.stniopssorclaitnereffidtuptuoehtmorfderusaeM
.snoitidnocdaollauqehtiwdnaegatlovylppusemasehttastuptuofoknabanihtiwwekssadenifeD:3ETON
.56dradnatSCEDEJhtiwecnadroccanidenifedsiretemarapsihT:4ETON
IDT™ / ICS™ LVDS, LVPECL FANOUT BUFFER 6 ICS854S204AGI REV A AUGUST 14, 2006
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