Analog Devices Welcomes Hittite Microwave Corporation NO CONTENT ON THE ATTACHED DOCUMENT HAS CHANGED www.analog.com www.hittite.com THIS PAGE INTENTIONALLY LEFT BLANK HMC985LP4KE v01.0813 attenuators - analog - SMT GaAs MMIC VOLTAGE - VARIABLE ATTENUATOR, 10 - 40 GHz Typical Applications Features The HMC985LP4KE is ideal for: Wide Bandwidth: 10 - 40 GHz • Point-to-Point Radio Excellent Linearity: +32 dB Input IP3 Wide Attenuation Range: 35 dB • VSAT Radio No External Matching • Test Instrumentation 24 Lead 4x4 mm SMT Package: 16 mm² • Microwave Sensors • Military, ECM & Radar 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. Functional Diagram 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] Typ. Max. 10 - 20 GHz Frequency Min. 3 3.5 dB 20 - 30 GHz 3 4 dB 3.5 4.5 dB 30 -40 GHz Attenuation Range Units 10 - 20 GHz 25 30 dB 20 - 30 GHz 30 35 dB 30 - 40 GHz 35 40 dB Input Return Loss 10 - 40 GHz 13 dB Output Return Loss 10 - 40 GHz 13 dB 33 dBm Input Third Order Intercept (two-tone input Power = 10 dBm Each Tone) [2] [1] Vcntl1 = Vcntl2 =-2.4V [2] Vcntl1 = Vcntl2 =-2.0V worst case 1 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] HMC985LP4KE v01.0813 Gaas mmic voltage - variable attenuator, 10 - 40 GHz Attenuation vs. Frequency over Vctl1 = Variable, Vctl2 = -3V Attenuation vs. Frequency over Vctl1 = 0V, Vctl2 = Variable 0 -10 ATTENUATION (dB) ATTENUATION (dB) -5 -10 -15 -20 -30 -40 -50 -20 -60 -25 -70 10 15 20 25 30 35 40 10 15 20 FREQUENCY (GHz) -2.4V -2.0V -1.6V 25 30 35 40 FREQUENCY (GHz) -1.2V -0.8V -0.4V 0.0V -2.4V -2.0V -1.6V Attenuation vs. Vctl1 Over Temperature @ 25 GHz, Vctl2 = -3V -1.2V -0.8V -0.4V 0.0V Attenuation vs. Vctl2 Over Temperature @ 30 GHz, Vctl1 = 0V 0 0 -5 -10 ATTENUATION (dB) ATTENUATION (dB) -3 -6 -9 -15 -20 -25 -30 -35 -12 attenuators - analog - SMT 0 -40 -15 -2.4 -2 -1.6 -1.2 -0.8 -0.4 0 -45 -2.4 -2 -1.6 +25 C +85 C +25 C -40 C Attenuation vs. Pin @ 20 GHz over Vctl1 Vctl1 = Variable, Vctl2 = -3V -0.8 -0.4 0 +85 C -40 C Attenuation vs. Pin @ 20 GHz over Vctl2 Vctl2 = Variable, Vctl1 = 0V 0 0 -4 -10 ATTENUATION (dB) ATTENUATION (dB) -1.2 Vctrl1 (V) Vctrl1 (V) -8 -12 -16 -20 -30 -40 -20 -24 -50 -5 -1 3 7 11 15 -5 -1 3 INPUT POWER (dBm) -2.4V -2.0V -1.6V -1.2V -0.8V -0.4V 7 11 15 INPUT POWER (dBm) 0.0V -2.4V -2.0V -1.6V -1.2V -0.8V -0.4V 0.0V For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] 2 HMC985LP4KE v01.0813 Gaas mmic voltage - variable attenuator, 10 - 40 GHz 0 0 -10 -10 RETURN LOSS (dB) RETURN LOSS (dB) Input Return Loss Vctl1 = 0V, Vctl2 = Variable -20 -30 -40 -20 -30 -40 10 15 20 25 30 35 40 10 15 20 FREQUENCY (GHz) -2.4 V -1.2V -2.4 V 0.0 V 30 35 40 -1.2V 0.0 V Output Return Loss Vctl1 = 0V, Vctl2 = Variable 0 -10 -10 RETURN LOSS (dB) 0 -20 -30 -40 -20 -30 -40 10 15 20 25 30 35 40 10 15 20 FREQUENCY (GHz) -2.4 V 25 30 35 40 FREQUENCY (GHz) -1.2V 0.0 V -2.4 V Input IP3 vs. Input Power @ 20 GHz Vctl1 = Variable, Vctl2 = -3V 60 45 50 41 40 37 30 20 -1.2V 0.0 V Input IP3 vs. Input Power Over Frequency Vctl1 = -2V, Vctl2 = -3V [1] IP3 (dBm) IP3 (dBm) 25 FREQUENCY (GHz) Output Return Loss Vctl1 = Variable, Vctl2 = -3V RETURN LOSS (dB) attenuators - analog - SMT Input Return Loss Vctl1 = Variable, Vctl2 = -3V 33 29 10 25 -5 -1 3 7 11 15 SINGLE TONE INPUT POWER (dBm) -2.4V -2.0V -1.6V -1.2V -0.8V -0.4V -5 -3 -1 1 3 5 7 9 11 13 15 SINGLE TONE INPUT POWER (dBm) 0.0V 10 GHz 20 GHz 30 GHz [1] Worst Case IP3 3 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] HMC985LP4KE v01.0813 Gaas mmic voltage - variable attenuator, 10 - 40 GHz 45 60 41 50 37 40 33 29 30 20 25 10 -5 -3 -1 1 3 5 7 9 11 13 15 0 SINGLE TONE INPUT POWER (dBm) +25 C +85 C 6 9 12 15 SINGLE TONE INPUT POWER (dBm) -2.4V -2.0V -1.6V -40 C Input IP3 vs. Input Power Over Frequency Vctl2 = -2V, Vctl1 = 0V [1] 45 45 41 41 37 37 33 29 -1.2V -0.8V -0.4V 0.0 V Input IP3 vs Input Power over Temperature @ 20 GHz, Vctl2 = -2V, Vctl1 = 0V [1] IP3 (dBm) IP3 (dBm) 3 33 29 25 attenuators - analog - SMT Input IP3 vs. Input Power @ 20 GHz Vctl2 = Variable, Vctl1 = 0V IP3 (dBm) IP3 (dBm) Input IP3 vs. Input Power Over Temperature @ 20 GHz, Vctl1 = -2V, Vctl2 = -3V [1] 25 0 3 6 9 12 15 SINGLE TONE INPUT POWER (dBm) 10 GHz 20 GHz 0 3 6 9 12 15 SINGLE TONE INPUT POWER (dBm) 30 GHz +25 C +85 C -40 C [1] Worst Case IP3 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] 4 HMC985LP4KE v01.0813 Gaas mmic voltage - variable attenuator, 10 - 40 GHz Attenuation vs Frequency Over Vctrl Vctl1 = Vctl2 Attenuation vs. Vctrl Over Temperature @ 20 GHz, Vctl1 = Vctl2 0 -5 -10 ATTENUATION (dB) ATTENUATION (dB) -10 -20 -30 -40 -15 -20 -25 -30 -35 -50 -40 -45 -2.4 -60 5 10 15 20 25 30 35 40 -2 -1.6 -1.2 -2.4 V -2.0 V -1.6 V -0.8 -0.4 0 Vctrl1 (V) FREQUENCY (GHz) -1.2 V -0.8 V -0.4 V 0.0 V +25 C Attenuation vs. Pin @ 20 GHz Over Vctl Vctl1 = Vctl2 +85 C -40 C Input Return Loss, Vctl1 = Vctl2 0 0 RETURN LOSS (dB) -10 ATTENUATION (dB) attenuators - analog - SMT 0 -20 -30 -40 -50 -10 -20 -30 -40 -5 -1 3 7 11 15 10 15 20 INPUT POWER (dBm) -2.4V -2.0V -1.6V -1.2V -0.8V -0.4V 0.0V 30 35 40 -2.4 V -1.2V 0.0 V Input IP3 vs. Input Power Over Vctrl @ 20 GHz, Vctl1 = Vctl2 Output Return Loss, Vctl1 = Vctl2 0 60 50 -10 IP3 (dBm) RETURN LOSS (dB) 25 FREQUENCY (GHz) -20 40 30 -30 20 -40 10 10 15 20 25 30 35 40 FREQUENCY (GHz) -2.4 V 5 -1.2V 0 3 6 9 12 15 SINGLE TONE INPUT POWER (dBm) 0.0 V -2.4V -2.0V -1.6V -1.2V -0.8V -0.4V 0.0V For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] HMC985LP4KE v01.0813 Gaas mmic voltage - variable attenuator, 10 - 40 GHz 40 40 36 36 32 32 28 24 28 24 20 20 -5 -1 3 7 11 15 SINGLE TONE INPUT POWER (dBm) 10 GHz 20 GHz -5 -1 3 7 11 15 SINGLE TONE INPUT POWER (dBm) 30 GHz +25 C +85 C -40 C For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] attenuators - analog - SMT Input IP3 vs. Input Power Over Temperature @ 20 GHz Vctl1 = Vctl2 IP3 (dBm) IP3 (dBm) Input IP3 vs. Input Power Over Frequency Vctl1 = Vctl2 6 HMC985LP4KE v01.0813 Gaas mmic voltage - variable attenuator, 10 - 40 GHz Absolute Maximum Ratings attenuators - analog - SMT Control Voltage +1 to -5V Input RF Power 30 dBm Maximum Junction Temperature 165 °C Thermal Resistance (RTH) (junction to ground paddle) 62 °C/W Operating Temperature -40°C to +85°C Storage Temperature -65°C to 125°C ESD Sensitivity (HBM) Class1A, passed 250V ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS 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. CHARACTERS TO BE HELVETICA MEDIUM, .025 HIGH, WHITE INK, OR LASER MARK LOCATED APPROX. AS SHOWN. 7. PAD BURR LENGTH SHALL BE 0.15mm MAX. PAD BURR HEIGHT SHALL BE 0.05mm MAX. 8. PACKAGE WARP SHALL NOT EXCEED 0.05mm 9. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 10. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED PCB LAND PATTERN. Package Information Part Number Package Body Material Lead Finish HMC985LP4KE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL Rating MSL1 [1] Package Marking H985 XXX [1] Max peak reflow temperature of 260 °C [2] 4-Digit lot number XXXX 7 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] HMC985LP4KE v01.0813 Gaas mmic voltage - variable attenuator, 10 - 40 GHz Pin Descriptions Function Description 1, 2, 4-7, 12-15, 17-19, 24 GND These pins and package bottom must be connected to RF/DC ground externally. 3 RFIN This pad is DC coupled and matched to 50 Ohms. 8 Vctl1 Control Voltage 1. 9, 11, 20-23 NC These pins are not connected internally, however all data shown herein was measured with these pins connected to RF/DC ground externally. 10 Vctl2 Control Voltage 2. 16 RFOUT This pad is DC coupled and matched to 50 Ohms. Pin Schematic attenuators - analog - SMT Pin Number Application Circuit For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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 HMC985LP4KE v01.0813 Gaas mmic voltage - variable attenuator, 10 - 40 GHz attenuators - analog - SMT Evaluation PCB List of Materials for Evaluation PCB EVAL01-HMC985LP4KE [1] Item Description J1-J2, J6-J7 K Connectors. J3-J5 DC Pins. C1-C2 100pF Capacitors, 0402 Pkg. C3-C4 0.01 µF Capacitor, 0603 Pkg. C5-C6 4.7 µF Case A, Tantalum. U1 HMC985LP4KE VVA. PCB 600-00220-00 Evaluation PCB. [1] Reference this number when ordering complete evaluation PCB 9 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. For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] HMC985LP4KE v01.0813 Gaas mmic voltage - variable attenuator, 10 - 40 GHz attenuators - analog - SMT Notes: For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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] 10