Spread Spectrum
HcMOꢂ 7x5mm 3.3V ꢂMD Osꢆiꢃꢃaꢄor
Pageꢀ1ꢀofꢀ3
Rev. 12/9/2008
RoHꢂ compꢃianꢄ / Pꢅ Free
Modeꢃ: Fꢂꢂ73 ꢂeries
http://www.foxonline.com/need_a_sample.htm
Fox Electronics Spread Spectrum Oscillators use industry-leading, proven, analog technologies which allows
them to be used in a wide range of high-performance applications. These products offer various down-spread and
center-spread options, enabling the customer to optimize the EMI reduction for their application requirements.
• ElEctRꢁcAl cHARActERꢁꢂtꢁcꢂ
7.2 M ax
MAX (unlessꢀotherwiseꢀnoted)
PARAMETERS
FrequencyꢀRangeꢀ (Fo)
StorageꢀTemperatureꢀRangeꢀ (Tstg)
FrequencyꢀStabilityꢀ(demodulatedꢀfrequency)
SupplyꢀVoltageꢀꢀ (Vdd)
#4
#3
5.2 M ax
13.000ꢀ~ꢀ160.000ꢀMHz
-55ºCꢀ~ꢀ+125ºC
±100ꢀPPM1
Top
View
#1
#2
3.3Vꢀ±ꢀ10%
Dot denotes
pin 1
InputꢀCurrentꢀ
(Idd)
ꢀꢀꢀ13.000000ꢀꢀꢀ~ꢀꢀꢀ49.999999ꢀMHz
ꢀꢀꢀ50.000000ꢀꢀꢀ~ꢀꢀꢀ79.999999ꢀMHzꢀ
ꢀꢀꢀ80.000000ꢀꢀꢀ~ꢀꢀꢀ99.999999ꢀMHz
ꢀ100.000000ꢀꢀꢀ~ꢀ160.000000ꢀMHz
RiseꢀTimeꢀ(10%ꢀ~ꢀ90%ꢀVdd)ꢀ(Tr)
ꢀꢀꢀ13.000000ꢀꢀꢀ~ꢀꢀꢀ49.999999ꢀMHz
ꢀꢀꢀ50.000000ꢀꢀꢀ~ꢀꢀꢀ79.999999ꢀMHzꢀ
ꢀꢀꢀ80.000000ꢀꢀꢀ~ꢀꢀꢀ99.999999ꢀMHz
ꢀ100.000000ꢀꢀꢀ~ꢀ160.000000ꢀMHz
FallꢀTimeꢀꢀ(90%ꢀ~ꢀ10%ꢀVdd)ꢀ(Tf)
ꢀꢀꢀ13.000000ꢀꢀꢀ~ꢀꢀꢀ49.999999ꢀMHz
ꢀꢀꢀ50.000000ꢀꢀꢀ~ꢀꢀꢀ79.999999ꢀMHzꢀ
ꢀꢀꢀ80.000000ꢀꢀꢀ~ꢀꢀꢀ99.999999ꢀMHz
ꢀ100.000000ꢀꢀꢀ~ꢀ160.000000ꢀMHz
OutputꢀSymmetryꢀ(50%ꢀVdd)
20mA
25mA
30mA
40mA
1.4 M ax
1.4
10nS
8nS
5nS
4nS
#1
#4
#2
#3
Bottom
View
2.6±0.1
1.2
10nS
8nS
5nS
4nS
5.8±0.2
Recommended
Solder Pad Layout
40%ꢀ~ꢀ60%
OutputꢀVoltageꢀ
(HCMOS)
OutputꢀLowꢀꢀꢀ(Vol)
OutputꢀHighꢀꢀ(Voh)
1.8
ꢀ
ꢀ
10%ꢀVdd
90%ꢀVddꢀꢀMin
8mAꢀꢀMin
-8mAꢀꢀMin
15pF
1.6
OutputꢀCurrentꢀ
(Iol)
(Ioh)
4.2
ꢀ
ꢀ
OutputꢀLoad
StandbyꢀCurrentꢀꢀꢀꢀꢀꢀ(FSS73S)
StartupꢀTime
10µA
10mS
5.08
DisableꢀTime
100nS
EnableꢀTimeꢀ
Pin Connections
ꢀ
ꢀ
ꢀꢀꢀꢀꢀꢀFSS73Bꢀꢀꢀꢀ(Tristate)ꢀ
ꢀꢀꢀꢀꢀꢀFSS73Sꢀ ꢀ(Standby)
2mS
10mSꢀ
#1 E/D
#3 O utput
#2 G ND #4 VDD
SpreadꢀSpectrumꢀFunctionꢀ
(SeeꢀModelꢀSelectionꢀGuide,ꢀPageꢀ2)
All dimensions are in millimeters.
ꢀ
ꢀ
CenterꢀSpread
DownꢀSpread
±0.25%ꢀ~ꢀ±2.0%
-0.5%ꢀ~ꢀ-4.0%
±3ꢀPPM/Year
260ºCꢀ/ꢀ10ꢀSecondsꢀ
1ꢀ
Aging
MaximumꢀSolderingꢀTempꢀ/ꢀTimeꢀ
MoistureꢀSensitivityꢀLevelꢀ(MSL)ꢀ
TerminationꢀFinish
Au
1ꢀInclusiveꢀofꢀinitialꢀfrequencyꢀtoleranceꢀandꢀoperatingꢀtemperatureꢀrange.ꢀ
(Otherꢀstabilitiesꢀtoꢀ±20ꢀPPMꢀavailable.)
• EꢀAblE / DꢁꢂAblE FuꢀctꢁOꢀ
2ꢀAnꢀinternalꢀpullupꢀresistorꢀfromꢀpinꢀ1ꢀtoꢀpinꢀ4ꢀallowsꢀactiveꢀoutputꢀifꢀpinꢀ1ꢀisꢀleftꢀopen.ꢀ
Note: Drawing is for reference to critical specifications defined by size measurements.ꢀ
Certainꢀnon-criticalꢀvisualꢀattributes,ꢀsuchꢀasꢀsideꢀcastellations,ꢀreferenceꢀpinꢀshape,ꢀetc.ꢀmayꢀ
vary. The above specifications, having been carefully prepared and checked, are believed to be
acurateꢀatꢀtheꢀtimeꢀofꢀpublication;ꢀhowever,ꢀnoꢀresponsibilityꢀisꢀassumedꢀbyꢀFoxꢀElectronicsꢀforꢀ
inaccuracies. All specifications subject to change without notice.
INHꢀ(Pinꢀ1)
OPENꢀ2
Oꢀ UTPUTꢀ(Pinꢀ3)
ACTIVE
'1'ꢀLevelꢀVihꢀ≥ 70%ꢀVdd
'0'ꢀLevelꢀVilꢀ≤ 30%ꢀVdd
ACTIVE
HighꢀZ
FOXElectronics 5570 Enterprise Parkway Fort Myers, Florida 33905 USA +1.239.693.0099 FAX +1.239.693.1554 http://www.foxonline.com
EMEA Tel/Fax: +44 .1767.312632 | Asia Hong Kong Tel: +852.2854.4285 Fax +852.2854.4282 | Japan Tel: +81.3.3374.2079 Fax: +81.3.3374.5221
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