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PDF HMC985LP4KE Data sheet ( Hoja de datos )
| Número de pieza | HMC985LP4KE | |
| Descripción | GaAs MMIC VOLTAGE - VARIABLE ATTENUATOR | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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v01.0813
Typical Applications
The HMC985LP4KE is ideal for:
• Point-to-Point Radio
• VSAT Radio
• Test Instrumentation
• Microwave Sensors
• Military, ECM & Radar
Functional Diagram
HMC985LP4KE
GaAs MMIC VOLTAGE - VARIABLE
ATTENUATOR, 10 - 40 GHz
Features
Wide Bandwidth: 10 - 40 GHz
Excellent Linearity: +32 dB Input IP3
Wide Attenuation Range: 35 dB
No External Matching
24 Lead 4x4 mm SMT Package: 16 mm²
General Description
The HMC985LP4KE is an absorptive Voltage Variable
Attenuator (VVA) which operates from 10 - 40 GHz and
is ideal in designs where an analog DC control signal
must be used to control RF signal levels over a 35 dB
dynamic range. It features two shunt-type attenuators
which are controlled by two analog voltages, Vctl1 and
Vctl2. Optimum linearity performance of the attenuator
is achieved by first varying Vctl1 of the first attenuation
stage from -3V to 0V with Vctl2 fixed at -3V. The control
voltage of the second attenuation stage, Vctl2, should
then be varied from -3V to 0V with Vctl1 fixed at 0V.
if the Vctl1 and Vctl2 pins are connected together it is
possible to achieve the full analog attenuation range
with only a small degradation in input IP3 performance.
Applications include AGC circuits and temperature
compensation of multiple gain stages in microwave
point-to-point and VSAT radios.
Electrical Specifications, TA = +25 °C, Test Condition Vctl1 = Vctl2
Parameter
Insertion Loss [1]
Attenuation Range
Input Return Loss
Output Return Loss
Frequency
10 - 20 GHz
20 - 30 GHz
30 -40 GHz
10 - 20 GHz
20 - 30 GHz
30 - 40 GHz
10 - 40 GHz
10 - 40 GHz
Min.
25
30
35
Typ.
3
3
3.5
30
35
40
13
13
Input Third Order Intercept
(two-tone input Power = 10 dBm Each Tone) [2]
33
[1] Vcntl1 = Vcntl2 =-2.4V
[2] Vcntl1 = Vcntl2 =-2.0V worst case
Max.
3.5
4
4.5
Units
dB
dB
dB
dB
dB
dB
dB
dB
dBm
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1 page  
v01.0813
HMC985LP4KE
Gaas mmic voltage - variable
attenuator, 10 - 40 GHz
Input IP3 vs. Input Power Over Temperature
@ 20 GHz, Vctl1 = -2V, Vctl2 = -3V [1]
45
41
37
33
29
25
-5 -3 -1 1 3 5 7 9 11 13 15
SINGLE TONE INPUT POWER (dBm)
+25 C
+85 C
-40 C
Input IP3 vs. Input Power Over Frequency
Vctl2 = -2V, Vctl1 = 0V [1]
45
41
37
33
29
25
0
3 6 9 12
SINGLE TONE INPUT POWER (dBm)
15
10 GHz
20 GHz
30 GHz
Input IP3 vs. Input Power @ 20 GHz
Vctl2 = Variable, Vctl1 = 0V
60
50
40
30
20
10
0
3 6 9 12
SINGLE TONE INPUT POWER (dBm)
-2.4V
-2.0V
-1.6V
-1.2V
-0.8V
-0.4V
15
0.0 V
Input IP3 vs Input Power over Tempera-
ture @ 20 GHz, Vctl2 = -2V, Vctl1 = 0V [1]
45
41
37
33
29
25
0
3 6 9 12
SINGLE TONE INPUT POWER (dBm)
+25 C
+85 C
15
-40 C
[1] Worst Case IP3
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4
5 Page 
Notes:
v01.0813
HMC985LP4KE
Gaas mmic voltage - variable
attenuator, 10 - 40 GHz
IrrlTiniecgrfaseohFpdntrseomsoemnoarsfatiisibtrophkingislrirrtdayafiuncnpirsdtnaeeairdrste,sihegsbesduiysdmtteheimebarledtypidvmlbiAcetyaranPayArtadioyrlhnoeenamgsolauooanlDrgtnrkeofeDrsdvtoh:eiamcevrt9eAreicowist7etspihssipe8usepfsop-lbeularr2.neioicdtSlcp5iseepeaevu0rreetstcya-deioinofo3,iycfrtnno3atdophtria4eboeSftienoer3rsrnursaetasspc:noupcyrbpeHujipcernFoaatcifirttvttareieetnttnoixg:aottecnew:rPmhdign9aeeMhhnrn7rtegssotls.8eiiaocnobwf-frel2Aiepoth:n.5aowatH9ue0lotona7g-wntsv38oDeotevi3e-crev2eo7riC,.ct5h3eNneos0oor. r-p3oFOPA3Oohprn4arrope3dntlpiTieecorei:aorcnc7treihO,8o,n1n2naod-S3lp-eoE2lulgpiil9vpniysez-pe4rW@aoy7arb,a0hty:tae0i,Pntwt•Ptdhhi.wOtoOetDnor.w.decrB:epi.ovo1hrlax-emoi8ctn9,et0l1iCi0tn0oe-eh6rA.d,ceaNeNtolArmwosmL:rwOswAfwGoono.-aardDdlno,a,gMloMADgAe.0cv2oi0c0me16s28,-29In410c.6,
10
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet HMC985LP4KE.PDF ] | |
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