HMC973LP3E v00.0910 Attenuators - ANALOG - SMT 8 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 0.5 - 6.0 GHz Typical Applications Features The HMC973LP3E is ideal for: Excellent Linearity: +35 dBm Input IP3 • Point-to-Point Radio Wide Attenuation Range: 26 dB • Cellular/3G & WiMAX/4G Infrastructure Single Positive Voltage Control: 0 to +5V • Test Instrumentation Absorptive Topology • Microwave Sensors 16 Lead 3x3mm SMT Package: 9mm² • Military, ECM & Radar Functional Diagram General Description The HMC973LP3E is an absorptive Voltage Variable Attenuator (VVA) which operates from 0.5 to 6 GHz and is ideal in designs where an analog DC control signal must be used to control RF signal levels over a 26 dB amplitude range. It features a shunt-type attenuator controlled by an analog voltage, Vctrl. Unlike other GaAs FET based VVA’s the HMC973LP3E exhibits excellent linearity of +35 dBm input IP3, throughout it’s control range. The HMC973LP3E is an unidirectional device with optimum linearity performance achieved when the RF input signal is applied to the RFIN package lead. The HMC973LP3E is housed in a RoHS compliant 3x3 mm QFN leadless package. Electrical Specifications, TA = +25° C, 50 Ohm system, Vdd = +5V Parameter 8-1 Typ. Max. Units Insertion Loss 0.5 - 4.0 GHz 4.0 - 6.0 GHz Frequency Min. 3.5 5.5 5 8 dB dB Attenuation Range 0.5 - 3.0 GHz 3.0 - 6.0 GHz 26 28 dB Input Return Loss 0.5 - 6.0 GHz 12 dB Output Return Loss 0.5 - 6.0 GHz 10 dB Input Power for 1 dB Compression (any attenuation) 0.5 - 6.0 GHz 30 dBm Input Third Order Intercept (Two-tone Input Power = +5 dBm Each Tone) 0.5 - 6.0 GHz Supply Current (Idd) 0.5 - 6.0 GHz 35 200 dBm 300 µA For 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 [email protected] HMC973LP3E v00.0910 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 0.5 - 6.0 GHz Insertion Loss vs. Frequency Over Temperature ATTENUATION (dB) INSERTION LOSS (dB) -10 -5 +25 C +85 C -40 C -10 -20 -30 0.0 V 1.0 V 1.6 V 2.0 V 2.6 V 3.4 V -40 -15 -50 0 1 2 3 4 5 6 0 7 2 FREQUENCY (GHz) 0 0 -5 -5 -10 -10 -15 -20 +25 C +85 C -40 C -30 6 8 Attenuation vs. Vctrl Over Temperature @ 2 GHz ATTENUATION (dB) ATTENUATION (dB) Attenuation vs. Vctrl Over Temperature @ 0.5 GHz -25 4 FREQUENCY (GHz) -15 -20 -25 +25 C +85 C -40 C -30 -35 Attenuators - ANALOG - SMT 0 0 -35 0 1 2 3 4 5 0 1 2 Vctrl (V) 0 -5 -5 ATTENUATION (dB) -10 -15 -20 +25 C +85 C -40 C -30 4 5 Attenuation vs. Vctrl Over Temperature @ 6 GHz 0 -25 3 Vctrl (V) Attenuation vs. Vctrl Over Temperature @ 4 GHz ATTENUATION (dB) 8 Attenuation vs. Frequency Over Vctrl -10 -15 -20 -25 -30 +25 C +85 C -40 C -35 -40 -35 0 1 2 3 Vctrl (V) 4 5 0 1 2 3 4 5 Vctrl (V) For 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 [email protected] 8-2 HMC973LP3E v00.0910 8 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 0.5 - 6.0 GHz Input Return Loss Over Temperature (Vctrl = 0) Input Return Loss Over Vctrl 0 RETURN LOSS (dB) RETURN LOSS (dB) +25 C +85 C -40 C -10 -20 -30 -10 -20 -30 0.0 V 1.0 V 2.0 V 3.0 V -40 0 2 4 6 8 0 2 4 FREQUENCY (GHz) 0 RETURN LOSS (dB) +25 C +85 C -40 C -10 -20 -10 -20 0.0 V 1.0 V 2.0 V 3.0 V -30 -40 0 2 4 6 8 0 2 4 FREQUENCY (GHz) 50 50 40 40 IP3 (dBm) 60 30 10 0.5 0.0 V 1.0 V 1.6 V 2.0 V 2.6 V 3.4 V 1.5 2.5 3.5 8 Input IP3 Over Temperature (Vctrl = 0V) 60 20 6 FREQUENCY (GHz) Input IP3 Over Vctrl IP3 (dBm) 8 Output Return Loss Over Vctrl 0 -30 4.5 FREQUENCY (GHz) 8-3 6 FREQUENCY (GHz) Output Return Loss Over Temperature (Vctrl = 0) RETURN LOSS (dB) Attenuators - ANALOG - SMT 0 30 +25 C +85 C -40 C 20 5.5 6.5 7.5 10 0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 FREQUENCY (GHz) For 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 [email protected] HMC973LP3E v00.0910 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 0.5 - 6.0 GHz 8 Voltages & Currents RF Input Power +29 dBm Vdd 5V @ 200 µA Vdd 5.5V Vctrl 0 to +5V @ 100 µA Control Voltage Range -0.5 to 5.5V Channel Temperature 150 °C Continuous Pdiss (T = 85 °C) 0.8W Thermal Resistance (Channel to ground paddle) 80 °C/W Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C ESD Sensitivity (HBM) Class 1A ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing Attenuators - ANALOG - SMT Absolute Maximum Ratings 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 HMC973LP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL Rating MSL1 [2] Package Marking [1] H973 XXXX [1] 4-Digit lot number XXXX [2] Max peak reflow temperature of 260 °C For 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 [email protected] 8-4 HMC973LP3E v00.0910 Attenuators - ANALOG - SMT 8 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 0.5 - 6.0 GHz Pin Descriptions Pin Number Function Description 1, 2, 4, 9, 11, 12 Ground Paddle GND These pins and the exposed ground paddle must be connected to RF/DC ground. 3 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. 5 Vdd Supply Voltage 6, 8, 13 - 16 N/C The pins are not connected internally; however, all data shown herein was measured with these pins connected to RF/DC ground externally. 7 Vctrl Control Voltage 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. The HMC973LP3E is a unidirectional device with optimum linearity performance achieved with RF input signal applied to RFIN package lead. 10 Interface Schematic Application Circuit 8-5 For 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 [email protected] HMC973LP3E v00.0910 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 0.5 - 6.0 GHz 8 Attenuators - ANALOG - SMT Evaluation PCB List of Materials for Evaluation PCB 131552 [1] Item Description J1, J2 PCB Mount SMA RF Connector J3 - J5 DC Pin C1, C2 100 pF Capacitor, 0402 Pkg. C3, C4 10000 pF Capacitor, 0402 Pkg. U1 HMC973LP3E Voltage Variable Attenuator PCB [2] 131550 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 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. For 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 [email protected] 8-6