ICSI ICS8422002I-01 User Manual
查询ICS8422002I-01供应商
PRELIMINARY
Integrated
Circuit
Systems, Inc.
GENERAL DESCRIPTION
ICS
HiPerClockS™
parallel resonant crystal, the following frequencies can be
generated based on the 2 frequency select pins (F_SEL[1:0]):
156.25MHz, 125MHz and 62.5MHz. The ICS8422002I-01
uses ICS’ 3
and can achieve 1ps or lower typical rms phase jitter, easily
meeting Ethernet jitter requirements. The ICS8422002I-01 is
packaged in a small 20-pin TSSOP package.
The ICS8422002I-01 is a 2 output LVHSTL
Synthesizer optimized to generate Ethernet
reference clock frequencies and is a member of
TM
the HiPerClocks
family of high performance
clock solutions from ICS. Using a 25MHz 18pF
rd
generation low phase noise VCO technology
ICS8422002I-01
FEMTOCLOCKS™ C RYSTAL-TO-
LVHSTL FREQUENCY SYNTHESIZER
FEATURES
• Two LVHSTL outputs (VOHmax = 1.2V)
• Selectable crystal oscillator interface
or LVCMOS/LVTTL single-ended input
• Supports the following output frequencies: 156.25MHz,
125MHz, 62.5MHz
• VCO range: 560MHz - 680MHz
• RMS phase jitter @ 156.25MHz, using a 25MHz crystal
(1.875MHz - 20MHz): 0.44ps (typical)
• Power supply modes:
Core/Output
3.3V/1.8V
2.5V/1.8V
• -40°C to 85°C ambient operating temperature
• Available in both standard and lead-free RoHS compliant
packages
FREQUENCY SELECT FUNCTION TABLE
1LES_F0LES_F
rediviDM
eulaV
00 524 52.651
01 525 521
10 52015.26
11 desutondesuton
rediviDN
eulaV
BLOCK DIAGRAM
F_SEL[1:0]
nPLL_SEL
TEST_CLK
XTAL_IN
XTAL_OUT
nXTAL_SEL
Pulldown
Pulldown
Pulldown
25MHz
OSC
Pulldown
2
11
0
Phase
Detector
VCO
PIN ASSIGNMENT
nc
1
V
DDO
nQ0
V
V
Q0
MR
nc
DDA
DD
2
3
4
5
6
7
8
9
10
ycneuqerFtuptuO
).feRzHM52(
nPLL_SEL
F_SEL0
ICS8422002I-01
20-Lead TSSOP
6.5mm x 4.4mm x 0.92mm
package body
G Package
Top V ie w
F_SEL[1:0]
1
0
0 0 ÷4
0 1 ÷5
1 0 ÷10
1 1
Not Used
Q0
nQ0
Q1
nQ1
20
19
18
17
16
15
14
13
12
11
V
DDO
Q1
nQ1
GND
V
DD
nXTAL_SEL
TEST_CLK
XTAL_IN
XTAL_OUT
F_SEL1
M = 25 (fixed)
Pulldown
MR
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.
8422002AGI-01 www.icst.com/products/hiperclocks.html REV. B NOVEMBER 14, 2005
1
Integrated
Circuit
Systems, Inc.
TABLE 1. PIN DESCRIPTIONS
rebmuNemaNepyTnoitpircseD
7,1cndesunU.tcennocoN
02,2V
4,30Qn,0QtupuO.slevelecafretniLTSHVL.riaptuptuolaitnereffiD
5RMtupnInwodlluP
6LES
8V
11,9
61,01V
31,21
41KLC_TSETtupnInwodlluP.tupnikcolcLTTVL/SOMCVL
51LES_LATXntupnInwodlluP
71DNGrewoP.dnuorgylppusrewoP
91,811Q,1QntuptuO.slevelecafretniLTSHVL.riaptuptuolaitnereffiD
:ETON nwodlluP .seulavlacipytrof,scitsiretcarahCniP,2elbaTeeS.srotsisertupnilanretniotsrefer
ODD
_LLPntupnInwodlluP
ADD
,0LES_F
1LES_F
DD
,TUO_LATX
NI_LATX
rewoP.snipylppustuptuO
rewoP.nipylppusgolanA
tupnInwodlluP.slevelecafretniLTTVL/SOMCVL.sniptcelesycneuqerF
rewoP.snipylppuseroC
tupnI
PRELIMINARY
LVHSTL FREQUENCY SYNTHESIZER
teser
pniehtsiNI_LATX
.tu
retniLTTVL/SOMCVL
ICS8422002I-01
FEMTOCLOCKS™ C RYSTAL-TO-
lanretnieht,HGIHcigolnehW.teseRretsaMHGIHevitcA
erastuptuoehtdnasredividlanretnieht,WOLcigolnehW.hgihogot
.slevelecafretniLTTVL/SOMCVL.delbane
.slevelecafretniLTTVL/SOMCVL.)ssapyBLLP(
,tuptuoehtsiTUO_LATX.ecafretnilatsyrctnanoserlellaraP
pniKLC_TSETrolatsyrcneewtebstceleS
.slevelecaf
erasredivid
xQnstuptuodetrevniehtdnawologotxQstuptuoeurtehtgnisuac
nehW.sredividehtottupnisaKLC_TSETdnaLLPehtneewtebstceleS
kcolcecnereferehtstcelesed,HGIHnehW.)elbanELLP(LLPstceles,WOL
ecnerefeRLLPehtehtsastu
.HGIHnehwKLC_TSETstceleS.WOLnehwstupniLATXstceleS.ecruos
TABLE 2. PIN CHARACTERISTICS
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
C
NI
R
8422002AGI-01 www.icst.com/products/hiperclocks.html REV. B NOVEMBER 14, 2005
NWODLLUP
ecnaticapaCtupnI 4Fp
rotsiseRnwodlluPtupnI 15kΩ
2
PRELIMINARY
Integrated
Circuit
Systems, Inc.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
Inputs, V
I
Outputs, I
DD
O
Continuous Current 50mA
Surge Current 100mA
Package Thermal Impedance, θ
Storage Temperature, T
STG
TABLE 3A. POWER SUPPLY DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
DD
V
ADD
V
ODD
I
DD
I
ADD
I
ODD
4.6V
-0.5V to V
73.2°C/W (0 lfpm)
JA
DD
-65°C to 150°C
egatloVylppuSeroC 531.33.3564.3V
egatloVylppuSgolanA 531.33.3564.3V
egatloVylppuStuptuO 6.18.12V
tnerruCylppuSrewoP 09Am
tnerruCylppuSgolanA 01Am
tnerruCylppuStuptuOdaoLoN0Am
+ 0.5V
= V
DD
= 3.3V±5%, V
DDA
ICS8422002I-01
FEMTOCLOCKS™ C RYSTAL-TO-
LVHSTL FREQUENCY SYNTHESIZER
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.
= 1.8V±0.2V, TA = -40°C TO 85°C
DDO
TABLE 3B. POWER SUPPLY DC CHARACTERISTICS, V
DD
= V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
DD
V
ADD
V
ODD
I
DD
I
ADD
I
ODD
egatloVylppuSeroC 573.25.2526.2V
egatloVylppuSgolanA 573.25.2526.2V
egatloVylppuStuptuO 6.18.10.2V
tnerruCylppuSrewoP 08Am
tnerruCylppuSgolanA 01Am
tnerruCylppuStuptuOdaoLoN0Am
TABLE 3C. LVCMOS / LVTTL DC CHARACTERISTICS, V
T
A= -40°C TO 85°C
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
HI
V
LI
I
HI
I
LI
tupnI
tupnI
egatloVhgiHtupnI
egatloVwoLtupnI
,RM,KLC_TSET
tnerruChgiH
,1LES_F,0LES_F
LES_LATXn,LES_LLPn
,RM,KLC_TSET
tnerruCwoL
,1LES_F,0LES_F
LES_LATXn,LES_LLPn
= 2.5V±5%, V
DDA
= V
DD
DDA
V
V
V
V
V
DD
V
DD
V
= 1.8V±0.2V, TA= -40°C TO 85°C
DDO
= 3.3V±5% OR 2.5V±5%, V
V3.3=2V
DD
V5.2=7.1V
DD
V3.3=3.0-8.0V
DD
V5.2=3.0-7.0V
DD
V=
NI
564.3=
V5.2ro
,V5.2roV564.3=
V0=
NI
= 1.8V±0.2V,
DDO
3.0+V
DD
3.0+V
DD
051Aµ
051-Aµ
8422002AGI-01 www.icst.com/products/hiperclocks.html REV. B NOVEMBER 14, 2005
3
Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS8422002I-01
FEMTOCLOCKS™ C RYSTAL-TO-
LVHSTL FREQUENCY SYNTHESIZER
TABLE 3D. LVHSTL DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
HO
V
LO
V
XO
V
GNIWS
1ETON;egatloVhgiHtuptuO 0.12.1V
1ETON;egatloVwoLtuptuO 04.0V
05htiwdetanimretstuptuO:1ETON Ω .dnuorgot
lovtuptuoottcepserhtiwdenifeD:2ETON
TABLE 3E. LVHSTL DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
HO
V
LO
V
XO
V
GNIWS
1ETON;egatloVhgiHtuptuO 0.12.1V
1ETON;egatloVwoLtuptuO 532.0V
05htiwdetanimretstuptuO:1ETON Ω .dnuorgot
vtuptuoottcepserhtiwdenifeD:2ETON
TABLE 4. CRYSTAL CHARACTERISTICS
= V
DD
= 3.3V±5%,V
DDA
= 1.8V±0.2V, TA = -40°C TO 85°C
DDO
2ETON;egatloVrevossorCtuptuO 0406%
gniwSegatloVtuptuOkaeP-ot-kaeP 6.01.1V
.noitidnocnevigatagniwsegat
= V
DD
= 2.5V±5%,V
DDA
= 1.8V±0.2V, TA = -40°C TO 85°C
DDO
2ETON;egatloVrevossorCtuptuO 0406%
gniwSegatloVtuptuOkaeP-ot-kaeP 9.0V
.noitidnocnevigatagniwsegatlo
retemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
noitallicsOfoedoM latnemadnuF
ycneuqerF 4.22522.72zHM
siseRseireStnelaviuqE 05
)RSE(ecnat
ecnaticapaCtnuhS 7Fp
leveLevirD 1Wm
C:ETON
.latsyrctnanoserlellarapFp81nagnisudeziretcarah
Ω
8422002AGI-01 www.icst.com/products/hiperclocks.html REV. B NOVEMBER 14, 2005
4
Loading...