AT-273-PIN [TE]
Digital Attenuator, 2-Bit, 32.0dB, DC-2.0 GHz; 数字衰减器， 2位， 32.0分贝DC- 2.0GHz的
| 型号： | AT-273-PIN |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator, 2-Bit, 32.0dB, DC-2.0 GHz |
| 文件： | 总4页 (文件大小：153K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RoHS
Compliant
Digital Attenuator
32.0 dB, 2-Bit, TTL Driver, DC-2.0 GHz
AT-273-PIN
V8
Functional Schematic1
Features
•
•
•
•
•
•
Attenuation:ꢁ16.0ꢁdBꢁStepsꢁtoꢁ32ꢁdBꢁꢁ
LowꢁDCꢁPowerꢁConsumptionꢁ
HermeticꢁSurfaceꢁMountꢁPackageꢁ
IntegralꢁTTLꢁDriverꢁ
50ꢁohmꢁImpedanceꢁ
TemperatureꢁStability:ꢁ±0.18ꢁdBꢁfromꢁꢀ55°Cꢁtoꢁ
+85°CꢁTyp.ꢁꢁ
TapeꢁandꢁReelꢁPackagingꢁAvailableꢁ
LeadꢀFreeꢁCRꢀ11ꢁPackageꢁ
260°CꢁReflowꢁCompatibleꢁꢁ
RF1
RF2
GND
GND
GND
GND
16ꢁdB
GND
GND
16ꢁdB
Vee
GND
C1
•
•
•
ꢁ
Vcc
NC
GNDꢁOrientationꢁMark
C2ꢁꢁPINꢁ1
PINꢁ16ꢁꢁNC
Description
M/AꢀCOM'sꢁ ATꢀ273ꢀPINꢁ isꢁ aꢁ GaAsꢁ FETꢁ digitalꢁ
attenuatorꢁwithꢁaꢁ16.0ꢁdBꢁminimumꢁstepꢁsizeꢁandꢁaꢁ
32ꢁ dBꢁ totalꢁ attenuationꢁ range.ꢁ Thisꢁ attenuatorꢁ andꢁ
integralꢁ TTLꢁ driverꢁ isꢁ inꢁ aꢁ hermeticallyꢁ sealedꢁ
ceramicꢁ 16ꢀleadꢁ surfaceꢁ mountꢁ package.ꢁ Theꢁ ATꢀ
273ꢀPINꢁ isꢁ ideallyꢁ suitedꢁ forꢁ useꢁ whereꢁ accuracy,ꢁ
fastꢁswitching,ꢁveryꢁlowꢁpowerꢁconsumptionꢁandꢁlowꢁ
intermodulationꢁ productsꢁ ꢁ areꢁ required.ꢁ Typicalꢁ
applicationsꢁ includeꢁ dynamicꢁ rangeꢁ settingꢁ inꢁ
precisionꢁ receiverꢁ circuitsꢁ andꢁ otherꢁ gain/levelingꢁ
controlꢁ circuits.ꢁ Environmentalꢁ screeningꢁ isꢁ
available.ꢁContactꢁtheꢁfactoryꢁforꢁinformation.ꢁ
1.ꢁꢁꢁUseꢁtheꢁC1ꢁcontrolꢁforꢁaꢁsingleꢁ16ꢀdBꢁbit.ꢁ
Pin Configuration
Pin No.
Function
C2ꢁ
Pin No.
9ꢁ
Function
RF1ꢁ
1ꢁ
2ꢁ
3ꢁ
4ꢁ
5ꢁ
6ꢁ
7ꢁ
8ꢁ
GNDꢁ
C1ꢁ
10ꢁ
GNDꢁ
GNDꢁ
GNDꢁ
Veeꢁ
11ꢁ
GNDꢁ
GNDꢁ
GNDꢁ
GNDꢁ
RF2ꢁ
12ꢁ
13ꢁ
14ꢁ
Vccꢁ
15ꢁ
NCꢁ
16ꢁ
NCꢁ
TheꢁmetalꢁbottomꢁofꢁtheꢁcaseꢁmustꢁbeꢁconnectedꢁtoꢁRFꢁandꢁDCꢁ
ground.ꢁ
Ordering Information
Part Number
Package
ATꢀ273ꢀPINꢁ
BulkꢁPackagingꢁ
Note:ꢁꢁReferenceꢁApplicationꢁNoteꢁM513ꢁforꢁreelꢁsizeꢁ
information.ꢁ
Note:ꢁꢁDieꢁquantityꢁvaries.ꢁ
*ꢁRestrictionsꢁonꢁHazardousꢁSubstances,ꢁEuropeanꢁUnionꢁDirectiveꢁ2002/95/EC.ꢁ
1ꢁ
M/AꢀCOMꢁInc.ꢁandꢁitsꢁaffiliatesꢁreserveꢁtheꢁrightꢁtoꢁmakeꢁchangesꢁtoꢁtheꢁ
product(s)ꢁorꢁinformationꢁcontainedꢁhereinꢁwithoutꢁnotice.ꢁM/AꢀCOMꢁmakesꢁ
noꢁwarranty,ꢁrepresentationꢁorꢁguaranteeꢁregardingꢁtheꢁsuitabilityꢁofꢁitsꢁꢁ
productsꢁforꢁanyꢁparticularꢁpurpose,ꢁnorꢁdoesꢁM/AꢀCOMꢁassumeꢁanyꢁliabilityꢁ
whatsoeverꢁarisingꢁoutꢁofꢁtheꢁuseꢁorꢁapplicationꢁofꢁanyꢁproduct(s)ꢁorꢁꢁ
information.ꢁ
•ꢁꢁNorth America Tel:ꢁ800.366.2266ꢁ/ꢁFax:ꢁ978.366.2266ꢁ
•ꢁꢁEurope Tel:ꢁ44.1908.574.200ꢁ/ꢁFax:ꢁ44.1908.574.300ꢁ
•ꢁꢁAsia/PacificꢁꢁTel:ꢁ81.44.844.8296ꢁ/ꢁFax:ꢁ81.44.844.8298ꢁ
ꢁ
Visitꢁwww.macom.com forꢁadditionalꢁdataꢁsheetsꢁandꢁproductꢁinformation.ꢁ
RoHS
Compliant
Digital Attenuator
32.0 dB, 2-Bit, TTL Driver, DC-2.0 GHz
AT-273-PIN
V8
Electrical Specifications: TA = 25°C1,2
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
InsertionꢁLossꢁ
—ꢁ
DCꢁꢀꢁ0.5ꢁGHzꢁ
DCꢁꢀꢁ1.0ꢁGHzꢁ
DCꢁꢀꢁ2.0ꢁGHzꢁ
dBꢁ
dBꢁ
dBꢁ
—ꢁ
—ꢁ
—ꢁ
—ꢁ
—ꢁ
—ꢁ
1.6ꢁ
1.7ꢁ
1.9ꢁ
AttenuationꢁAccuracyꢁ
C1ꢁBitꢁ
DCꢁꢀꢁ2.0ꢁGHzꢁ
DCꢁꢀꢁ0.5ꢁGHzꢁ
DCꢁꢀꢁ1.0ꢁGHzꢁ
DCꢁꢀꢁ2.0ꢁGHzꢁ
±ꢁ3%ꢁofꢁattenuationꢁsettingꢁinꢁdBꢁ
±ꢁ3%ꢁofꢁattenuationꢁsettingꢁinꢁdBꢁ
±ꢁ3%ꢁofꢁattenuationꢁsettingꢁinꢁdB,ꢁꢀ1ꢁdBꢁ
±ꢁ3%ꢁofꢁattenuationꢁsettingꢁinꢁdB,ꢁꢀ3ꢁdBꢁ
FullꢁAttenuationꢁ(32ꢁdB)ꢁ
FullꢁAttenuationꢁ(32ꢁdB)ꢁ
FullꢁAttenuationꢁ(32ꢁdB)ꢁ
VSWRꢁ
FullꢁRangeꢁ
DCꢁꢀꢁ2.0ꢁGHzꢁ
Ratioꢁ
—ꢁ
—ꢁ
1.6:1ꢁ
Trise,ꢁTfallꢁ
Ton,ꢁToffꢁ
10%ꢁtoꢁ90%ꢁ
—ꢁ
—ꢁ
nsꢁ
nsꢁ
—ꢁ
—ꢁ
7ꢁ
—ꢁ
—ꢁ
50%ꢁCntlꢁtoꢁ90%ꢁ/ꢁ10%ꢁRFꢁ
28ꢁ
Transientsꢁ
InꢀBandꢁ(peakꢀtoꢀpeak)ꢁ
—ꢁ
mVꢁ
—ꢁ
30ꢁ
—ꢁ
1ꢁdBꢁCompressionꢁ
InputꢁPowerꢁ
InputꢁPowerꢁ
0.05ꢁGHzꢁ
0.5ꢁꢀꢁ2.0ꢁGHzꢁ
dBmꢁ
dBmꢁ
—ꢁ
—ꢁ
+20ꢁ
+28ꢁ
—ꢁ
—ꢁ
InputꢁIP3ꢁ
InputꢁIP2ꢁ
Twoꢀtoneꢁinputsꢁupꢁtoꢁ+5ꢁdBmꢁ
0.05ꢁGHzꢁ
0.5ꢁꢀꢁ2.0ꢁGHzꢁ
dBmꢁ
dBmꢁ
—ꢁ
—ꢁ
+38ꢁ
+48ꢁ
—ꢁ
—ꢁ
Twoꢀtoneꢁinputsꢁupꢁtoꢁ+5ꢁdBmꢁ
0.05ꢁGHzꢁ
0.5ꢁꢀꢁ2.0ꢁGHzꢁ
dBmꢁ
dBmꢁ
—ꢁ
—ꢁ
+44ꢁ
+68ꢁ
—ꢁ
—ꢁ
Vccꢁ
ꢀVeeꢁ
—ꢁ
—ꢁ
—ꢁ
—ꢁ
Vꢁ
Vꢁ
4.5ꢁ
ꢀ8.0ꢁ
5.0ꢁ
—ꢁ
5.5ꢁ
ꢀ5.0ꢁ
Vctlꢁ
Vctlꢁ
Logicꢁ(0)ꢁTTLꢁ
Logicꢁ(1)ꢁTTLꢁ
—ꢁ
—ꢁ
Vꢁ
Vꢁ
0.0ꢁ
2.0ꢁ
—ꢁ
—ꢁ
0.8ꢁ
5.0ꢁ
InputꢁLeakageꢁCurrentꢁ(Low)ꢁ
InputꢁLeakageꢁCurrentꢁ(High)ꢁ
0ꢁtoꢁ0.8Vꢁ
2.0ꢁtoꢁ5.0Vꢁ
—ꢁ
—ꢁ
ꢂAꢁ
ꢂAꢁ
—ꢁ
—ꢁ
—ꢁ
—ꢁ
1.0ꢁ
1.0ꢁ
Iccꢁ
Vccꢁ=ꢁ4.5ꢁtoꢁ5.5Vꢁ
Vctlꢁ=ꢁ0ꢁtoꢁ0.8V,ꢁorꢁVccꢁ–2.1Vꢁ
toꢁVccꢁ
—ꢁ
mAꢁ
—ꢁ
—ꢁ
2.0ꢁ
ꢀIeeꢁ
Veeꢁ=ꢁꢀ5.0ꢁtoꢁꢀ8.0Vꢁ
—ꢁ
mAꢁ
—ꢁ
—ꢁ
ꢀ1ꢁ
1.ꢁ Allꢁspecificationsꢁapplyꢁwhenꢁoperatedꢁwithꢁbiasꢁvoltagesꢁofꢁ+5VꢁforꢁVccꢁandꢁ–5.0VꢁforꢁVee.ꢁꢁ
2.ꢁ Thisꢁattenuatorꢁisꢁguaranteedꢁmonotonic.ꢁ
2ꢁ
M/AꢀCOMꢁInc.ꢁandꢁitsꢁaffiliatesꢁreserveꢁtheꢁrightꢁtoꢁmakeꢁchangesꢁtoꢁtheꢁ
product(s)ꢁorꢁinformationꢁcontainedꢁhereinꢁwithoutꢁnotice.ꢁM/AꢀCOMꢁmakesꢁ
noꢁwarranty,ꢁrepresentationꢁorꢁguaranteeꢁregardingꢁtheꢁsuitabilityꢁofꢁitsꢁꢁ
productsꢁforꢁanyꢁparticularꢁpurpose,ꢁnorꢁdoesꢁM/AꢀCOMꢁassumeꢁanyꢁliabilityꢁ
whatsoeverꢁarisingꢁoutꢁofꢁtheꢁuseꢁorꢁapplicationꢁofꢁanyꢁproduct(s)ꢁorꢁꢁ
information.ꢁ
•ꢁꢁNorth America Tel:ꢁ800.366.2266ꢁ/ꢁFax:ꢁ978.366.2266ꢁ
•ꢁꢁEurope Tel:ꢁ44.1908.574.200ꢁ/ꢁFax:ꢁ44.1908.574.300ꢁ
•ꢁꢁAsia/PacificꢁꢁTel:ꢁ81.44.844.8296ꢁ/ꢁFax:ꢁ81.44.844.8298ꢁ
ꢁ
Visitꢁwww.macom.com forꢁadditionalꢁdataꢁsheetsꢁandꢁproductꢁinformation.ꢁ
RoHS
Compliant
Digital Attenuator
32.0 dB, 2-Bit, TTL Driver, DC-2.0 GHz
AT-273-PIN
V8
Absolute Maximum Ratings 3,4
Parameter
Absolute Maximum
Truth Table (Digital Attenuator)
Max.ꢁInputꢁPowerꢁ
0.05ꢁGHzꢁ
ꢁ
ꢁ
ꢁ
+27ꢁdBmꢁ
+34ꢁdBmꢁ
C1
C2
Attenuation
0.5ꢁꢀꢁ2.0ꢁGHzꢁ
0ꢁ
0ꢁ
1ꢁ
0ꢁ
1ꢁ
1ꢁ
Loss,ꢁReferenceꢁ
16.0ꢁdBꢁ
+Vccꢁ
+5.5Vꢁ
ꢀVeeꢁ
ꢀ8.5Vꢁ
32.0ꢁdBꢁ
ControlꢁVoltage5ꢁ
OperatingꢁTemperatureꢁ
StorageꢁTemperatureꢁ
ꢀ0.5ꢁtoꢁVccꢁ+ꢁ0.5Vꢁ
ꢀ55°Cꢁtoꢁ+125°Cꢁ
ꢀ65°Cꢁtoꢁ+150°Cꢁ
0ꢁ=ꢁTTLꢁLow;ꢁ1ꢁ=ꢁTTLꢁHighꢁ
3.ꢁ Exceedingꢁanyꢁoneꢁorꢁcombinationꢁofꢁtheseꢁlimitsꢁmayꢁcauseꢁ
permanentꢁdamageꢁtoꢁthisꢁdevice.ꢁ
4.ꢁ M/AꢀCOMꢁdoesꢁnotꢁrecommendꢁsustainedꢁoperationꢁnearꢁ
theseꢁsurvivabilityꢁlimits.ꢁ
5.ꢁ StandardꢁCMOSꢁTTLꢁinterface,ꢁlatchꢀupꢁwillꢁoccurꢁifꢁlogicꢁꢁ
signalꢁisꢁappliedꢁpriorꢁtoꢁpowerꢁsupply.ꢁ
Typical Performance Curves
Ref. Insertion Loss vs. Frequency
+ 85 °C
+ 25 °C
- 55 °C
Handling Procedures
5
4
3
2
Pleaseꢁobserveꢁtheꢁfollowingꢁprecautionsꢁtoꢁavoidꢁ
damage:ꢁ
ꢁ
Static Sensitivity
Galliumꢁ Arsenideꢁ Integratedꢁ Circuitsꢁ areꢁ sensitiveꢁ
toꢁ electrostaticꢁ dischargeꢁ (ESD)ꢁ andꢁ canꢁ beꢁ
damagedꢁbyꢁstaticꢁelectricity.ꢁꢁProperꢁESDꢁcontrolꢁ
techniquesꢁ shouldꢁ beꢁ usedꢁ whenꢁ handlingꢁ theseꢁ
devices.ꢁ
1
0
0.0
0.5
1.0
1.5
2.0
2.5
3
Frequency (GHz)
VSWR vs. Frequency
Attenuation Accuracy vs. Frequency
Full Attenuation
16 dB bit
Full Attenuation
16 dB State
32 dB State
1.0
0.0
2.00
1.80
1.60
1.40
1.20
1.00
ꢀ 1.0
ꢀ 2.0
ꢀ 3.0
ꢀ 4.0
ꢀ 5.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
3ꢁ
M/AꢀCOMꢁInc.ꢁandꢁitsꢁaffiliatesꢁreserveꢁtheꢁrightꢁtoꢁmakeꢁchangesꢁtoꢁtheꢁ
•ꢁꢁNorth America Tel:ꢁ800.366.2266ꢁ/ꢁFax:ꢁ978.366.2266ꢁ
•ꢁꢁEurope Tel:ꢁ44.1908.574.200ꢁ/ꢁFax:ꢁ44.1908.574.300ꢁ
•ꢁꢁAsia/PacificꢁꢁTel:ꢁ81.44.844.8296ꢁ/ꢁFax:ꢁ81.44.844.8298ꢁ
ꢁ
product(s)ꢁorꢁinformationꢁcontainedꢁhereinꢁwithoutꢁnotice.ꢁM/AꢀCOMꢁmakesꢁ
noꢁwarranty,ꢁrepresentationꢁorꢁguaranteeꢁregardingꢁtheꢁsuitabilityꢁofꢁitsꢁꢁ
productsꢁforꢁanyꢁparticularꢁpurpose,ꢁnorꢁdoesꢁM/AꢀCOMꢁassumeꢁanyꢁliabilityꢁ
whatsoeverꢁarisingꢁoutꢁofꢁtheꢁuseꢁorꢁapplicationꢁofꢁanyꢁproduct(s)ꢁorꢁꢁ
information.ꢁ
Visitꢁwww.macom.com forꢁadditionalꢁdataꢁsheetsꢁandꢁproductꢁinformation.ꢁ
RoHS
Compliant
Digital Attenuator
32.0 dB, 2-Bit, TTL Driver, DC-2.0 GHz
AT-273-PIN
V8
Lead-Free CR-11 Ceramic Package†
†ꢁꢁ
ReferenceꢁApplicationꢁNoteꢁM538ꢁforꢁleadꢀfreeꢁsolderꢁreflowꢁ
recommendations.ꢁ
4ꢁ
M/AꢀCOMꢁInc.ꢁandꢁitsꢁaffiliatesꢁreserveꢁtheꢁrightꢁtoꢁmakeꢁchangesꢁtoꢁtheꢁ
product(s)ꢁorꢁinformationꢁcontainedꢁhereinꢁwithoutꢁnotice.ꢁM/AꢀCOMꢁmakesꢁ
noꢁwarranty,ꢁrepresentationꢁorꢁguaranteeꢁregardingꢁtheꢁsuitabilityꢁofꢁitsꢁꢁ
productsꢁforꢁanyꢁparticularꢁpurpose,ꢁnorꢁdoesꢁM/AꢀCOMꢁassumeꢁanyꢁliabilityꢁ
whatsoeverꢁarisingꢁoutꢁofꢁtheꢁuseꢁorꢁapplicationꢁofꢁanyꢁproduct(s)ꢁorꢁꢁ
information.ꢁ
•ꢁꢁNorth America Tel:ꢁ800.366.2266ꢁ/ꢁFax:ꢁ978.366.2266ꢁ
•ꢁꢁEurope Tel:ꢁ44.1908.574.200ꢁ/ꢁFax:ꢁ44.1908.574.300ꢁ
•ꢁꢁAsia/PacificꢁꢁTel:ꢁ81.44.844.8296ꢁ/ꢁFax:ꢁ81.44.844.8298ꢁ
ꢁ
Visitꢁwww.macom.com forꢁadditionalꢁdataꢁsheetsꢁandꢁproductꢁinformation.ꢁ
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