HMC712LP3CE
v04.0410
GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz
Features
Wide Bandwidth: 5 - 26.5 GHz excellent Linearity: +28 dBm Input P1dB Wide Attenuation range: 28 dB Absorptive topology singe or Dual Control operation 16 Lead 3x3mm sMt Package: 9mm²
8
AttenuAtors - AnALoG - sMt
Typical Applications
the HMC712LP3Ce is ideal for: • Point-to-Point radio • VsAt radio • test Instrumentation • Microwave sensors • Military, eCM & radar
Functional Diagram
General Description
the HMC712LP3Ce is an absorptive Voltage Variable Attenuator (VVA) which operates from 5 - 26.5 GHz and is ideal in designs where an analog DC control signal must be used to control rF signal levels over a 28 dB amplitude range. It features two shunt-type attenuators which are controlled by two analog voltages, Vctrl1 and Vctrl2. optimum linearity performance of the attenuator is achieved by first varying Vctrl1 of the 1st attenuation stage from -3V to 0V with Vctrl2 fixed at -3V. the control voltage of the 2nd attenuation stage, Vctrl2, should then be varied from -3V to 0V, with Vctrl1 fixed at 0V. the HMC712LP3Ce is housed in a roHs compliant 3x3 mm QFn leadless package However, if the Vctrl1 and Vctrl2 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, 50 Ohm system
Parameter Insertion Loss Attenuation range Input return Loss output return Loss Input Power for 1 dB Compression (any attenuation) Input third order Intercept (two-tone Input Power = 10 dBm each tone) 5 - 16 GHz 16 - 24 GHz 24 - 26.5 GHz Min. typ. 3.5 4.5 5.5 28 12 10 28 32 Max. units dB dB dB dB dB dB dBm dBm
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F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC712LP3CE
v04.0410
GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz
Attenuation vs. Frequency over Vctrl Vctrl1 = 0V, Vctrl2 = Variable
0
Attenuation vs. Frequency over Vctrl Vctrl1 = Variable, Vctrl2 = -3V
0
8
AttenuAtors - AnALoG - sMt
8-2
-10 ATTENUATION (dB) -5 ATTENUATION (dB)
-20
-30
-3.0 V -1.8 V -1.4 V -0.8 V 0.0 V
-10
-3.0 V -1.6 V -1.2 V -0.6 V 0.0 V
-40
-15 2 6 10 14 18 22 26 30 FREQUENCY (GHz)
-50 2 6 10 14 18 22 26 30 FREQUENCY (GHz)
Attenuation vs. Vctrl1 Over Temperature @ 10 GHz, Vctrl2 = -3V
0
Attenuation vs. Vctrl2 Over Temperature @ 10 GHz, Vctrl1 = 0V
0 -5 ATTENUATION (dB) -10 -15 -20 -25 -30 -35
+25 C +85 C -40 C
-2 ATTENUATION (dB)
-4
-6
+25 C +85 C -40 C
-8
-10 -3 -2.5 -2 -1.5 Vctrl1 (V) -1 -0.5 0
-3
-2.5
-2
-1.5 Vctrl2 (V)
-1
-0.5
0
Attenuation vs. Pin @ 10 GHz Vctrl1 = Variable, Vctrl2 = -3V
0 -2 ATTENUATION (dB) -4 -6 -8 -10 -12 0 5 10 INPUT POWER (dBm) 15 20
-3.0 V -1.8 V -1.4 V -1.0 V -0.4 0.0 V
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC712LP3CE
v04.0410
GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz
Insertion Phase vs. Vctrl2, Vctrl1 = 0V
180 INSERTION PHASE (degrees) 135 90 45 0 -45 -90
1 GHz 5 GHz 10 GHz 20 GHz 25 GHz
8
AttenuAtors - AnALoG - sMt
Insertion Phase vs. Vctrl1, Vctrl2 = -3V
180 INSERTION PHASE (degrees) 135 90 45 0 -45 -90 -135 -180 -3
1 GHz 5 GHz 10 GHz 20 GHz 25 GHz
-135 -180
-2.5
-2
-1.5 VCRTL 1
-1
-0.5
0
-3
-2.5
-2
-1.5 VCTRL 2
-1
-0.5
0
Input Return Loss Vctrl1 = Variable, Vctrl2 = -3V
0
Input Return Loss Vctrl1 = 0V, Vctrl2 = Variable
0
RETURN LOSS (dB)
-20
RETURN LOSS (dB)
-10
-10
-20
-30
-3.0 V -1.2 V 0.0 V
-30
-3.0 V -1.4 V 0.0 V
-40 2 6 10 14 18 22 26 30 FREQUENCY (GHz)
-40 2 6 10 14 18 22 26 30 FREQUENCY (GHz)
Output Return Loss Vctrl1 = Variable, Vctrl2 = -3V
0
Output Return Loss Vctrl1 = 0V, Vctrl2 = Variable
0
RETURN LOSS (dB)
RETURN LOSS (dB)
-10
-10
-20
-3.0 V -1.2 V 0.0 V
-20
-3.0 V -1.4 V 0.0 V
-30 2 6 10 14 18 22 26 30 FREQUENCY (GHz)
-30 2 6 10 14 18 22 26 30 FREQUENCY (GHz)
8-3
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC712LP3CE
v04.0410
GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz
Input IP3 vs. Input Power Over Frequency Vctrl1 = -2.0V, Vctrl2 = -3V (Worst Case IP3)
40
Input IP3 vs Input Power @ 10 GHz Vctrl1 = Variable, Vctrl2 = -3V
60
8
AttenuAtors - AnALoG - sMt
8-4
50
35 IP3 (dBm)
IP3 (dBm)
40
30
5 GHz 15 GHz 20 GHz 30 GHz
30
-3.0 V -2.0 V -1.6 V -1.0 V 0.0 V
20
25
10 0 5 10 15 20 SINGLE TONE INPUT POWER (dBm)
20 0 5 10 15 20 SINGLE TONE INPUT POWER (dBm)
Input IP3 vs. Input Power Over Temperature @ 10 GHz, Vctrl1 = -2.0V, Vctrl2 = -3V
40
Attenuation vs. Frequency over Vctrl Vctrl1 = Vctrl2
0
ATTENUATION (dB)
35 IP3 (dBm)
-10
-20
30
-30
-3.0 V -1.6 V -1.2 V -0.6 V 0.0 V
25
+25 C +85 C -40 C
-40
20 0 5 10 15 20 SINGLE TONE INPUT POWER (dBm)
-50 2 9 16 FREQUENCY (GHz) 23 30
Attenuation vs. Vctrl over Temperature @ 10 GHz, Vctrl1 = Vctrl2
0
Attenuation vs. Input Power over Vctrl Vctrl1 = Vctrl2
0
ATTENUATION (dB)
ATTENUATION (dB)
-10
-10
-20
-20
-30
+25 C +85 C -40 C
-30
-3.0 V -1.8 V -1.4 V -1.0 V -0.4 V 0.0 V
-40 -3 -2.5 -2 -1.5 -1 -0.5 0 CONTROL VOLTAGE (V)
-40 0 5 10 INPUT POWER (dBm) 15 20
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC712LP3CE
v04.0410
GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz
8
AttenuAtors - AnALoG - sMt
Input Return Loss, Vctrl1 = Vctrl2
0
Output Return Loss, Vctrl1 = Vctrl2
0
RETURN LOSS (dB)
RETURN LOSS (dB)
-10
-10
-20
-30
-3.0 V -1.2 V 0.0 V
-20
-3.0 V -1.2 V 0.0 V
-40 2 6 10 14 18 22 26 30 FREQUENCY (GHz)
-30 2 6 10 14 18 22 26 30 FREQUENCY (GHz)
Input IP3 vs. Input Power Over Vctrl @ 10 GHz, Vctrl1 = Vctrl2
60 50 40 IP3 (dBm) 30 20 10 0 0 5 10 15 20 SINGLE TONE INPUT POWER (dBm)
-3.0 V -2.0 V -1.6 V -1.0 V 0.0 V
Absolute Maximum Ratings
rF Input Power Control Voltage range Channel temperature Continuous Pdiss (t = 85 °C) thermal resistance (Channel to ground paddle) storage temperature operating temperature +30 dBm +1 to -5V 150 °C 1W 66 °C/W -65 to +150 °C -40 to +85 °C
Control Voltages
Vctrl1 Vctrl2 -3 to 0V @ 10 µA -3 to 0V @ 10 µA
eLeCtrostAtIC sensItIVe DeVICe oBserVe HAnDLInG PreCAutIons
8-5
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC712LP3CE
v04.0410
GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz
Outline Drawing
8
AttenuAtors - AnALoG - sMt
H712 XXXX
notes: 1. PACKAGe BoDY MAterIAL: LoW stress InJeCtIon MoLDeD PLAstIC sILICA AnD sILICon IMPreGnAteD. 2. LeAD AnD GrounD PADDLe MAterIAL: CoPPer ALLoY. 3. LeAD AnD GrounD PADDLe PLAtInG: 100% MAtte tIn. 4. DIMensIons Are In InCHes [MILLIMeters]. 5. LeAD sPACInG toLerAnCe Is non-CuMuLAtIVe. 6. PAD Burr LenGtH sHALL Be 0.15mm MAX. PAD Burr HeIGHt sHALL Be 0.05mm MAX. 7. PACKAGe WArP sHALL not eXCeeD 0.05mm 8. ALL GrounD LeADs AnD GrounD PADDLe Must Be soLDereD to PCB rF GrounD. 9. reFer to HIttIte APPLICAtIon note For suGGesteD PCB LAnD PAttern.
Package Information
Part number HMC712LP3Ce Package Body Material roHs-compliant Low stress Injection Molded Plastic Lead Finish 100% matte sn MsL rating MsL1
[2]
Package Marking [1]
[1] 4-Digit lot number XXXX [2] Max peak reflow temperature of 260 °C
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
8-6
HMC712LP3CE
v04.0410
GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz
8
AttenuAtors - AnALoG - sMt
Pin Descriptions
Pin number 1, 2, 4, 9, 11, 12 Ground Paddle Function GnD Description Ground paddle must be connected to rF/DC ground. Interface schematic
3
rFIn
this pin is DC coupled and matched to 50 ohms. A blocking capacitor is required if rF line potential is not equal to 0V. these pins should be connected to PCB rF ground to maximize performance.
5, 8, 13 - 16
n/C
6
Vctrl1
Control Voltage 1
7
Vctrl2
Control Voltage 2
10
rFout
this pin is DC coupled and matched to 50 ohms. A blocking capacitor is required if rF line potential is not equal to 0V.
Application Circuit
8-7
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC712LP3CE
v04.0410
GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz
Evaluation PCB
8
AttenuAtors - AnALoG - sMt
List of Materials for Evaluation PCB 123773 [1]
Item J1, J2 C1, C2 C3, C4 C5, C6 V1, V2 u1 PCB [2] Description PCB Mount sMA rF Connector 100 pF Capacitor, 0402 Pkg. 1000 pF Capacitor, 0603 Pkg. 4.7 µF Capacitor, tantalum DC Pin HMC712LP3Ce Voltage Variable Attenuator 123771 evaluation PCB
[1] reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Arlon 25Fr or rogers 4350
the circuit board used in the final application should use rF circuit design techniques. signal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used to connect the top and bottom ground planes. the evaluation circuit board shown is available from Hittite upon request.
F or price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
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