HMC292LM3C v01.0505 MIXERS - SMT 7 GaAs MMIC DOUBLE-BALANCED SMT MIXER, 17 - 31 GHz Typical Applications Features The HMC292LM3C is ideal for: Input IP3: +19 dBm • Microwave Point-to-Point Radios LO / RF Isolation: 25 to 40 dB • Multi-Point/LMDS Radios Passive: No DC Bias Required • SATCOM Leadless SMT Package, 25mm2 Functional Diagram General Description The HMC292LM3C is a 17 - 31 GHz surface mount passive GaAs MMIC double-balanced mixer in a SMT leadless chip carrier package. The mixer can be used as a downconverter or upconverter. Excellent isolations are provided by on-chip baluns, which require no external components and no DC bias. All data is with the non-hermetic, epoxy sealed LM3C packaged device mounted in a 50 Ohm test fixture. Utilizing the HMC292LM3C eliminates the need for wirebonding, thereby providing a consistent connection interface for the customer. Electrical Specifications, TA = +25° C LO= +13 dBm, IF= 1 GHz LO= +13 dBm, IF= 1 GHz Parameter Units Min. Max. Min. Typ. Frequency Range, RF & LO 18 - 28 17 - 31 Frequency Range, IF DC - 6 DC - 6 Conversion Loss Noise Figure (SSB) LO to RF Isolation 7 - 156 Typ. 26 7.5 9.5 7.5 9.5 35 21 Max. GHz GHz 8 11 8 11 dB dB 32 dB LO to IF Isolation 20 25 20 25 dB RF to IF Isolation 22 33 20 30 dB IP3 (Input) 17 19 15 19 dBm IP2 (Input) 45 50 42 50 dBm 1 dB Gain Compression (Input) 8 12 8 12 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 HMC292LM3C v01.0505 GaAs MMIC DOUBLE-BALANCED SMT MIXER, 17 - 31 GHz Conversion Gain vs. Temperature @ LO = +13 dBm Isolation @ LO = +13 dBm 0 RF/IF LO/RF LO/IF -10 -5 -10 +25 C -40 C +85 C -15 -30 -40 -20 -50 15 20 25 30 35 15 20 FREQUENCY (GHz) 0 -5 -5 RETURN LOSS (dB) CONVERSION GAIN (dB) 30 35 30 35 RF & LO Return Loss @ LO = +13 dBm 0 -10 LO = + 9 dBm LO = + 11 dBm LO = + 13 dBm LO = + 15 dBm -15 25 FREQUENCY (GHz) Conversion Gain vs. LO Drive -20 LO RF -10 -15 -20 15 20 25 30 35 15 20 FREQUENCY (GHz) 25 FREQUENCY (GHz) Upconverter Performance Conversion Gain @ LO = +13 dBm IF Bandwidth @ LO = +13 dBm 0 CONVERSION GAIN (dB) 0 -5 RESPONSE (dB) 7 -20 MIXERS - SMT ISOLATION (dB) CONVERSION GAIN (dB) 0 -10 RETURN LOSS CONVERSION GAIN -15 -20 -5 -10 -15 -20 0 2 4 6 IF FREQUENCY (GHz) 8 10 15 20 25 30 35 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 7 - 157 HMC292LM3C v01.0505 GaAs MMIC DOUBLE-BALANCED SMT MIXER, 17 - 31 GHz Input IP3 vs. Temperature @ LO = +13 dBm 25 20 20 INPUT IP3 (dBm) 25 15 10 5 LO= 8 dBm LO= 10 dBm LO= 13 dBm 0 15 10 -40 C +25 C +85 C 5 0 -5 -5 15 20 25 30 35 15 20 FREQUENCY (GHz) 70 70 60 60 INPUT IP2 (dBm) 80 50 40 30 40 30 -40 C +25 C +85 C 10 0 0 15 20 25 30 35 15 20 FREQUENCY (GHz) 25 30 35 FREQUENCY (GHz) Input P1dB vs. Temperature @ LO = +13 dBm MxN Spurious Outputs 15 nLO mRF 13 INPUT P1dB (dBm) 35 50 20 LO= 8 dBm LO= 10 dBm LO= 13 dBm 10 30 Input IP2 vs. Temperature @ LO = +13 dBm 80 20 25 FREQUENCY (GHz) Input IP2 vs. LO Drive INPUT IP2 (dBm) MIXERS - SMT 7 INPUT IP3 (dBm) Input IP3 vs. LO Drive 11 0 1 0 xx 11 1 17 2 9 -40 C +25 C +85 C 7 2 0 39 70 77 3 76 3 93 69 86 4 >110 >110 >110 RF= 21 GHz @ -10 dBm LO= 22 GHz @ +13 dBm All values in dBc below the IF power level. 5 15 20 25 30 35 FREQUENCY (GHz) 7 - 158 4 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 HMC292LM3C v01.0505 GaAs MMIC DOUBLE-BALANCED SMT MIXER, 17 - 31 GHz Absolute Maximum Ratings +13 dBm LO Drive +27 dBm Storage Temperature -65 to +150 deg C Operating Temperature -40 to +85 deg C ESD Sensitivity (HBM) Class 1C 7 ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing MIXERS - SMT RF / IF Input NOTES: 1. MATERIAL: PLASTIC 2. PLATING: GOLD OVER NICKEL 3. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 4. ALL TOLERANCES ARE ± 0.005 [± 0.13]. 5. ALL GROUNDS MUST BE SOLDERED TO PCB RF GROUND. 6. • INDICATES PIN 1 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 7 - 159 HMC292LM3C v01.0505 GaAs MMIC DOUBLE-BALANCED SMT MIXER, 17 - 31 GHz Pin Descriptions Pin Number Function Description 1, 2, 3 N/C This pin may be connected to the housing ground or left unconnected. 4 RF This pin is DC coupled and matched to 50 Ohm from 18 - 31 GHz 5 IF This pin is DC coupled. For applications not requiring operation to DC, this port should be DC blocked externally using a series capacitor whose value has been chosen to pass the necessary IF frequency range. For operation to DC, this pin must not source/sink more than 2 mA of current or die non-function and possible die failure will result. 6 LO This pin is DC coupled and matched to 50 Ohm from 18 - 31 GHz. GND Package base must be soldered to PCB RF ground. MIXERS - SMT 7 7 - 160 Interface Schematic 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 HMC292LM3C v01.0505 GaAs MMIC DOUBLE-BALANCED SMT MIXER, 17 - 31 GHz Evaluation PCB MIXERS - SMT 7 The grounded Co-Planar Wave Guide (CPWG) PCB input/output transitions allow use of Ground-SignalGround (GSG) probes for testing. Suggested probe pitch is 400mm (16 mils). Alternatively, the board can be mounted in a metal housing with 2.4 mm coaxial connectors. Evaluation Circuit Board Layout Design Details Layout Technique Micro Strip to CPWG Material Rogers 4003 with 1/2 oz. Cu Dielectric Thickness 0.008” (0.20 mm) Microstrip Line Width 0.018” (0.46 mm) CPWG Line Width 0.016” (0.41 mm) CPWG Line to GND Gap 0.005” (0.13 mm) Ground Via Hole Diameter 0.008” (0.20 mm) LM3 package mounted to evaluation PCB 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 7 - 161 HMC292LM3C v01.0505 GaAs MMIC DOUBLE-BALANCED SMT MIXER, 17 - 31 GHz Suggested LM3-C PCB Land Pattern Tolerance: ± 0.003” (± 0.08 mm) MIXERS - SMT 7 7 - 162 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 HMC292LM3C v01.0505 GaAs MMIC DOUBLE-BALANCED SMT MIXER, 17 - 31 GHz HMC292LM3C Recommended SMT Attachment Technique Preparation & Handling of the LM3-C Millimeterwave Package for Surface Mounting 225 7 200 175 0 TEMPERATURE ( C) 150 125 100 Follow these precautions to avoid permanent damage: 75 Cleanliness: Observe proper handling procedures to ensure clean devices and PCBs. LM3-C devices should remain in their original packaging until component placement to ensure no contamination or damage to RF, DC & ground contact areas. 50 25 0 1 2 3 4 5 TIME (min) 6 7 8 Static Sensitivity: Follow ESD precautions to protect against ESD strikes. MIXERS - SMT The HMC LM3-C package was designed to be compatible with high volume surface mount PCB assembly processes. The LM3-C package requires a specific mounting pattern to allow proper mechanical attachment and to optimize electrical performance at millimeterwave frequencies. This PCB layout pattern can be found on each LM3-C product data sheet. It can also be provided as an electronic drawing upon request from Hittite Sales & Application Engineering. General Handling: Handle the LM3-C package on the top with a vacuum collet or along the edges with a sharp pair of bent tweezers. Avoiding damaging the RF, DC, & ground contacts on the package bottom. Do not apply excess pressure to the top of the lid. Solder Materials & Temperature Profile: Follow the information contained in the application note. Hand soldering is not recommended. Conductive epoxy attachment is not recommended. Solder Paste Solder paste should be selected based on the user’s experience and be compatible with the metallization systems used. See the LM3-C data sheet Outline drawing for pin & ground contact metallization schemes. Solder Paste Application Solder paste is generally applied to the PCB using either a stencil printer or dot placement. The volume of solder paste will be dependent on PCB and component layout and should be controlled to ensure consistent mechanical & electrical performance. Excess solder may create unwanted electrical parasitics at high frequencies. Solder Reflow The soldering process is usually accomplished in a reflow oven but may also use a vapor phase process. A solder reflow profile is suggested above. Prior to reflowing product, temperature profiles should be measured using the same mass as the actual assemblies. The thermocouple should be moved to various positions on the board to account for edge and corner effects and varying component masses. The final profile should be determined by mounting the thermocouple to the PCB at the location of the device. Follow solder paste and oven vendor’s recommendations when developing a solder reflow profile. A standard profile will have a steady ramp up from room temperature to the pre-heat temperature to avoid damage due to thermal shock. Allow enough time between reaching pre-heat temperature and reflow for the solvent in the paste to evaporate and the flux to completely activate. Reflow must then occur prior to the flux being completely driven off. The duration of peak reflow temperature should not exceed 15 seconds. Packages have been qualified to withstand a peak temperature of 235°C for 15 seconds. Verify that the profile will not expose device to temperatures in excess of 235°C. Cleaning A water-based flux wash may be used. 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 7 - 163