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843204AGILFT

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
FEMTOCLOCK™ CRYSTAL-TO-
3.3V LVPECL FREQUENCY SYNTHESIZER
ICS843204I
IDT
™
/ ICS
™
3.3V LVPECL FREQUENCY SYNTHESIZER 1 ICS843204AGI REV. A MARCH 18, 2009
PLL
OSC
÷4
OSC
25MHz
19.44MHz
PLL
÷4
622.08MHz
155.52MHz
625MHz
156.25MHz
0
1
0
1
0
1
0
1
OEA0
SELA0
OEA1
SELA1
OEB0
SELB0
OEB1
SELB0
QA0
nQA0
QA1
nQA1
QB0
nQB0
QB1
nQB1
nPLL_BYPASS_A
IN_SELA
CLK0
XTAL_IN0
XTAL_OUT0
nPLL_BYPASS_B
IN_SELB
CLK1
XTAL_IN1
XTAL_OUT1
Pullup
Pullup
Pullup
Pullup
Pulldown
Pulldown
GENERAL DESCRIPTION
The ICS843204I is a 4 output LVPECL Synthesizer
optimized to generate Gigabit Ethernet and SONET
reference clock frequencies and is a member of the
HiPerClocks
TM
family of high performance clock
solutions from IDT. Using a 19.44MHz and 25MHz,
18pF parallel resonant crystal, 155.52MHz and 156.25MHz
frequencies can be generated. The ICS843204I uses IDT’s
FemtoClock
TM
low phase noise VCO technology and can achieve
1ps or lower typical RMS phase jitter. The ICS843204I is pack-
aged in a 48-pin TSSOP package.
FEATURES
• Four 3.3V LVPECL outputs
• Selectable crystal oscillator interface
or LVCMOS/LVTTL single-ended input
• Supports the following output frequencies: 155.52MHz
and 156.25MHz
• VCO range: 560MHz - 680MHz
• RMS phase jitter @ 155.52MHz, using a 19.44MHz crystal
(12kHz - 20MHz): 0.98ps (typical)
• RMS phase jitter @ 156.25MHz, using a 19.44MHz crystal
(1.875MHz - 20MHz): 0.52ps (typical)
• Full 3.3V supply mode
• -40°C to 85°C ambient operating temperature
• Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
HiPerClockS™
ICS
PIN ASSIGNMENT
ICS843204I
48 Lead TSSOP
6.1mm x 12.5mm x 0.925mm
package body
G Package
Top View
nQA1
QA1
nQA0
QA0
nc
V
CCO_A
SELA1
SELA0
nPLL_BYPASS_A
nc
nc
nc
nc
XTAL_IN1
XTAL_OUT1
CLK1
IN_SEL_B
nPLL_BYPASS_B
V
CCO_B
nc
QB0
nQB0
QB1
nQB1
IN_SEL_A
CLK0
XTAL_IN0
XTAL_OUT0
nc
V
EE
OEA0
OEA1
VCC
VCCA_A
nc
nc
SELB0
V
EE
OEB0
OEB1
V
CC
SELB1
V
CCA_B
nc
nc
nc
nc
nc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
BLOCK DIAGRAM
IDT
™
/ ICS
™
3.3V LVPECL FREQUENCY SYNTHESIZER 2 ICS843204AGI REV. A MARCH 18, 2009
ICS843204I
FEMTOCLOCK™ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
TABLE 1. PIN DESCRIPTIONS
rebmuNemaNepyTnoitpircseD
2,11AQ,1AQntuptuO.slevelecafretniLCEPVL.riaptuptuolaitnereffiD
4,30AQ,0AQntuptuO.sleve
lecafretniLCEPVL.riaptuptuolaitnereffiD
,21,11,01,5
,62,52,02,31
,73,92,82,72
44,83
cndesunU.tcennocoN
6V
A_OCC
rewoP.stuptuoAknaBrofnipylppustuptuO
71ALEStupnInwodlluP
,WOLnehW.zHM25.551ta1AQn/1AQstceles,HGIHnehW.niptc
eleS
.slevelecafretniLTTVL/SOMCVL.zHM52.651ta1AQn/1AQstceles
80ALEStupnInwodlluP
,WOLnehW.zHM25.551ta0AQn/0
AQstceles,HGIHnehW.niptceleS
.slevelecafretniLTTVL/SOMCVL.zHM52.651ta1AQn/1AQstceles
9A_SSAPYB_LLPntupnIpu
lluP
.evitcasituptuoLLP,HGIHnehW.dessapybsiLLP,WOLnehW
.slevelecafretniLTTVL/SOMCVL
,41
51
,1NI_LATX
1TUO_L
ATX
tupnI
,tuptuoehtsi1TUO_LATX.ecafretnilatsyrctnanoserlellaraP
.tupniehtsi1NI_LATX
74,610KLC,1KLCtupnInwod
lluP.stupnikcolcLTTVL/SOMCVL
22,120BQn,0BQtupuO.slevelecafretniLCEPVL.riaptuptuolaitnereffiD
71B_LES_NItupnIpu
lluP
stceles,WOLnehW.stupni1LATXstceles,HGIHnehW.niptceleS
.slevelecafretniLTTVL/SOMCVL.tupni1KLC
81B_SSA
PYB_LLPntupnIpulluP
.evitcasituptuoLLP,HGIHnehW.dessapybsiLLP,WOLnehW
.slevelecafretniLTTVL/SOMCVL
91V
B_OCC
rewoP.stuptuoBknaBrofnipylppustuptuO
42,321BQn,1BQtupuO.slevelecafretniLCEPVL.riaptuptuolaitnereffiD
131BLESt
upnIpulluP
,WOLnehW.zHM25.551ta1BQn/1BQstceles,HGIHnehW.niptceleS
.slevelecafretniLTTVL/SOMCVL.zHM52.651
ta1BQn/1BQstceles
03V
B_ACC
rewoP.stuptuoBknaBrofnipylppusgolanA
04,23V
CC
rewoP.snipylppuseroC
331BEOtupnIpulluP
.elbaneerastuptuo1BQn/1BQ,HGIHnehW.nipelbanetuptuO
.slevelecafretniLT
TVL/SOMCVL
430BEOtupnIpulluP
.delbaneerastuptuo0BQn/0BQ,HGIHnehW.nipelbanetuptuO
.slevelecafretniLTTVL/SOMC
VL
34,53V
EE
rewoP.snipylppusevitageN
630BLEStupnIpulluP
,WOLnehW.zHM25.551ta0BQn/0BQstceles,HGIHnehW.niptceleS
.slevelec
afretniLTTVL/SOMCVL.zHM52.651ta0BQn/0BQstceles
93V
A_ACC
rewoP.stuptuoAknaBrofnipylppusgolanA
141AEOtupnIpulluP
.delbaneerastuptuo1AQn/1AQ,HGIHnehW.nipelbanetuptuO
.
slevelecafretniLTTVL/SOMCVL
240AEOtupnIpulluP
.delbaneerastuptuo0AQn/0AQ,HGIHnehW.nipelbanetuptuO
.slevelec
afretniLTTVL/SOMCVL
,54
64
,0TUO_LATX
0NI_LATX
tupnI
,tuptuoehtsi0TUO_LATX.ecafretnilatsyrctnanoserlellaraP
.tupniehtsi0NI_LATX
84A_LES_NItupnIpulluP
stceles,WOLnehW.stupni0LATXstceles,HGIHnehW.niptceleS
.slevelecaf
retniLTTVL/SOMCVL.tupni0KLC
:ETON
nwodlluPdnapulluP
.seulavlacipytrof,scitsiretcarahCniP,2elbaTeeS.srotsisertupnilanretniotrefer
TABLE 2. PIN CHARACTERISTICS
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
C
NI
ecnaticapaCtupnI 4Fp
R
NWODLLUP
rotsiseRnwodlluPtupnI 15kΩ
R
PULLUP
rotsiseRpulluPtupnI 15kΩ
IDT
™
/ ICS
™
3.3V LVPECL FREQUENCY SYNTHESIZER 3 ICS843204AGI REV. A MARCH 18, 2009
ICS843204I
FEMTOCLOCK™ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
CC
4.6V
Inputs, V
I
-0.5V to V
CC
+ 0.5V
Outputs, I
O
Continuous Current 50mA
Surge Current 100mA
Package Thermal Impedance, θ
JA
54.8°C/W (0 mps)
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 op-
eration of product at these conditions or any conditions beyond
those listed in the
DC Characteristics
or
AC Characteristics
is not
implied. Exposure to absolute maximum rating conditions for ex-
tended periods may affect product reliability.
TABLE 3A. POWER SUPPLY DC CHARACTERISTICS, V
CC
= V
CCO_A
= V
CCO_B
= 3.3V±10%, V
EE
= 0V, T
A
= -40°C TO 85°C
TABLE 3B. LVCMOS / LVTTL DC CHARACTERISTICS, V
CC
= V
CCO_A
= V
CCO_B
= 3.3V±10%, V
EE
= 0V, T
A
= -40°C TO 85°C
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
CC
egatloVylppuSeroC79.23.336.3V
V
A_ACC
+
V
B_ACC
egatloVylppuSgolanAV
CC
22.0–3.3V
CC
V
V
,A_OCC
V
B_OCC
egatloVylppuStuptuO79.23.336.3V
I
EE
tnerruCylppuSrewoP 071Am
I
CC
tnerruCylppuSeroC 521Am
I
A_ACC
I+
B_ACC
tnerruCylppuSgolanA 22Am
I
A_OCC
I+
B_OCC
tnerruCylppuStuptuO 32Am
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
HI
egatloVhgiHtupnI 2V
CC
3.0+V
V
LI
tupnI
egatloVwoL
3.0-8.0V
I
HI
tupnI
tnerruChgiH
,1KLC,0KLC
1ALES,0ALES
V
CC
V=
NI
V36.3=051Aµ
,A_SSAPYB_LLPn
,B_SSAPYB_LLPn
,B_LES_NI,A_LES_NI
,0BEO,0BLES,1BLES
1AEO,0AEO,1BEO
V
CC
V=
NI
V36.3=5Aµ
I
LI
tupnI
tnerruCwoL
,1KLC,0KLC
1ALES,0ALES
V
CC
V,V36.3=
NI
V0=5-Aµ
,A_SSAPYB_LLPn
,B_SSAPYB_LLPn
,B_LES_NI,A_LES_NI
,0BEO,0BLES,1BLES
1AEO,0AEO,1BEO
V
CC
V,V36.3=
NI
V0=051-Aµ
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

843204AGILFT

Mfr. #:
Buy 843204AGILFT
Manufacturer:
Description:
Clock Synthesizer / Jitter Cleaner 4 LVPECL OUT SYNTHESIZER
Lifecycle:
New from this manufacturer.
Delivery:
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