HMC712LP3CE v03.0909 ATTENUATORS - ANALOG - SMT 5 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz Typical Applications Features The HMC712LP3CE is ideal for: Wide Bandwidth: 5 - 26.5 GHz • Point-to-Point Radio Excellent Linearity: +28 dBm Input P1dB • VSAT Radio Wide Attenuation Range: 28 dB • Test Instrumentation Absorptive Topology • Microwave Sensors Singe or Dual Control Operation • Military, ECM & Radar 16 Lead 3x3mm SMT Package: 9mm2 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 Specifi cations, TA = +25° C, 50 Ohm system Parameter Typ. Max. Units 3.5 4.5 5.5 dB dB dB Attenuation Range 28 dB Input Return Loss 12 dB Insertion Loss 5 - 210 Min. 5 - 16 GHz 16 - 24 GHz 24 - 26.5 GHz Output Return Loss 10 dB Input Power for 1 dB Compression (any attenuation) 28 dBm Input Third Order Intercept (Two-tone Input Power = 10 dBm Each Tone) 32 dBm For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC712LP3CE v03.0909 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz 5 Attenuation vs. Frequency over Vctrl Vctrl1 = 0V, Vctrl2 = Variable Attenuation vs. Frequency over Vctrl Vctrl1 = Variable, Vctrl2 = -3V 0 ATTENUATION (dB) ATTENUATION (dB) -10 -5 -10 -3.0 V -1.6 V -1.2 V -0.6 V 0.0 V -20 -30 -3.0 V -1.8 V -1.4 V -0.8 V 0.0 V -40 -15 -50 2 6 10 14 18 22 26 30 2 6 10 14 FREQUENCY (GHz) 18 22 26 30 FREQUENCY (GHz) Attenuation vs. Vctrl1 Over Temperature @ 10 GHz, Vctrl2 = -3V Attenuation vs. Vctrl2 Over Temperature @ 10 GHz, Vctrl1 = 0V 0 0 -5 ATTENUATION (dB) -4 -6 +25 C +85 C -40 C -8 -10 -15 -20 +25 C +85 C -40 C -25 -30 -10 -35 -3 -2.5 -2 -1.5 -1 -0.5 -3 0 -2.5 -2 Vctrl1 (V) -1.5 -1 -0.5 0 Vctrl2 (V) Attenuation vs. Pin @ 10 GHz Vctrl1 = Variable, Vctrl2 = -3V 0 -2 ATTENUATION (dB) ATTENUATION (dB) -2 ATTENUATORS - ANALOG - SMT 0 -4 -6 -8 -3.0 V -1.8 V -1.4 V -10 -1.0 V -0.4 0.0 V -12 0 5 10 15 20 INPUT POWER (dBm) For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 5 - 211 HMC712LP3CE v03.0909 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz Insertion Phase vs. Vctrl2, Vctrl1 = 0V 180 180 135 135 INSERTION PHASE (degrees) INSERTION PHASE (degrees) Insertion Phase vs. Vctrl1, Vctrl2 = -3V 90 45 1 GHz 5 GHz 10 GHz 0 20 GHz 25 GHz -45 -90 -135 90 45 0 1 GHz 5 GHz 10 GHz 20 GHz 25 GHz -45 -90 -135 -180 -180 -3 -2.5 -2 -1.5 -1 -0.5 0 -3 -2.5 -2 VCRTL 1 -1 0 -10 -10 RETURN LOSS (dB) 0 -20 -3.0 V -1.2 V 0.0 V -30 0 -20 -3.0 V -1.4 V 0.0 V -30 -40 2 6 10 14 18 22 26 2 30 6 10 14 18 22 26 30 26 30 FREQUENCY (GHz) FREQUENCY (GHz) Output Return Loss Vctrl1 = Variable, Vctrl2 = -3V Output Return Loss Vctrl1 = 0V, Vctrl2 = Variable 0 RETURN LOSS (dB) 0 -10 -20 -10 -20 -3.0 V -1.2 V 0.0 V -3.0 V -1.4 V 0.0 V -30 -30 2 6 10 14 18 FREQUENCY (GHz) 5 - 212 -0.5 Input Return Loss Vctrl1 = 0V, Vctrl2 = Variable -40 RETURN LOSS (dB) -1.5 VCTRL 2 Input Return Loss Vctrl1 = Variable, Vctrl2 = -3V RETURN LOSS (dB) ATTENUATORS - ANALOG - SMT 5 22 26 30 2 6 10 14 18 22 FREQUENCY (GHz) For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC712LP3CE v03.0909 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz Input IP3 vs Input Power @ 10 GHz Vctrl1 = Variable, Vctrl2 = -3V Input IP3 vs. Input Power Over Frequency Vctrl1 = -2.0V, Vctrl2 = -3V (Worst Case IP3) 35 40 IP3 (dBm) IP3 (dBm) 50 30 -3.0 V -2.0 V -1.6 V -1.0 V 0.0 V 20 30 5 GHz 15 GHz 20 GHz 30 GHz 25 10 20 0 5 10 15 0 20 SINGLE TONE INPUT POWER (dBm) Input IP3 vs. Input Power Over Temperature @ 10 GHz, Vctrl1 = -2.0V, Vctrl2 = -3V 10 15 20 Attenuation vs. Frequency over Vctrl Vctrl1 = Vctrl2 0 40 -10 ATTENUATION (dB) 35 IP3 (dBm) 5 SINGLE TONE INPUT POWER (dBm) 30 +25 C +85 C -40 C 25 -20 -30 ATTENUATORS - ANALOG - SMT 40 60 -3.0 V -1.6 V -1.2 V -0.6 V 0.0 V -40 -50 20 0 5 10 15 2 20 9 Attenuation vs. Vctrl over Temperature @ 10 GHz, Vctrl1 = Vctrl2 23 30 Attenuation vs. Input Power over Vctrl Vctrl1 = Vctrl2 0 -10 -10 ATTENUATION (dB) 0 -20 +25 C +85 C -40 C -30 16 FREQUENCY (GHz) SINGLE TONE INPUT POWER (dBm) ATTENUATION (dB) 5 -20 -30 -3.0 V -1.8 V -1.4 V -1.0 V -0.4 V 0.0 V -40 -40 -3 -2.5 -2 -1.5 -1 CONTROL VOLTAGE (V) -0.5 0 0 5 10 15 20 INPUT POWER (dBm) For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 5 - 213 HMC712LP3CE v03.0909 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz 5 Input Return Loss, Vctrl1 = Vctrl2 Output Return Loss, Vctrl1 = Vctrl2 -10 RETURN LOSS (dB) RETURN LOSS (dB) 0 -20 -3.0 V -1.2 V 0.0 V -30 -10 -20 -3.0 V -1.2 V 0.0 V -40 -30 2 6 10 14 18 22 26 30 2 FREQUENCY (GHz) 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) ATTENUATORS - ANALOG - SMT 0 30 20 -3.0 V -2.0 V -1.6 V -1.0 V 0.0 V 10 0 0 5 10 15 20 SINGLE TONE INPUT POWER (dBm) Absolute Maximum Ratings 5 - 214 Control Voltages RF Input Power +30 dBm Vctrl1 -3 to 0V @ 10 μA Control Voltage Range +1 to -5V Vctrl2 -3 to 0V @ 10 μA Channel Temperature 150 °C Continuous Pdiss (T = 85 °C) 1W Thermal Resistance (Channel to ground paddle) 66 °C/W Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC712LP3CE v03.0909 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz 5 ATTENUATORS - ANALOG - SMT Outline Drawing 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 Package Body Material Lead Finish HMC712LP3CE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL Rating MSL1 [2] Package Marking [1] H712 XXXX [1] 4-Digit lot number XXXX [2] Max peak reflow temperature of 260 °C For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 5 - 215 HMC712LP3CE v03.0909 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz ATTENUATORS - ANALOG - SMT 5 Pin Descriptions Pin Number Function Description 1, 2, 4, 9, 11, 12 Ground Paddle GND Ground paddle must be connected to RF/DC ground. 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. 5, 8, 13 - 16 N/C These pins should be connected to PCB RF ground to maximize performance. 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. Interface Schematic Application Circuit 5 - 216 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC712LP3CE v03.0909 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz 5 ATTENUATORS - ANALOG - SMT Evaluation PCB List of Materials for Evaluation PCB 123773 [1] Item Description J1, J2 PCB Mount SMA RF Connector C1, C2 100 pF Capacitor, 0402 Pkg. C3, C4 1000 pF Capacitor, 0603 Pkg. C5, C6 4.7 μF Capacitor, Tantalum V1, V2 DC Pin U1 HMC712LP3CE Voltage Variable Attenuator PCB [2] 123771 Evaluation PCB [1] Reference this number when ordering complete evaluation PCB 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. [2] Circuit Board Material: Arlon 25FR or Rogers 4350 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 5 - 217