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| HMC814 v00.1109 GaAs MMIC x2 ACTIVE FREQUENCY MULTIPLIER, 13 - 24.6 GHz OUTPUT Typical Applications Features High Output Power: +17 dBm Low Input Power Drive: 0 to +6 dBm Fo Isolation: >20 dBc @ Fout = 19 GHz 100 kHz SSB Phase Noise: -136 dBc/Hz Single Supply: +5V @ 88mA Die Size: 1.2 x 1.23 x 0.1 mm 2 FREQUENCY MULTIPLIERS - ACTIVE - CHIP The HMC814 is ideal for: * Clock Generation Applications: SONET OC-192 & SDH STM-64 * Point-to-Point & VSAT Radios * Test Instrumentation * Military & Space * Sensors Functional Diagram General Description The HMC814 is a x2 active broadband frequency multiplier chip utilizing GaAs PHEMT technology. When driven by a +4 dBm signal, the multiplier provides +17 dBm typical output power from 13 to 24.6 GHz. The Fo, 3Fo and 4Fo isolations are >20 dBc at 19 GHz. The HMC814 is ideal for use in LO multiplier chains for Pt-to-Pt & VSAT Radios yielding reduced parts count vs. traditional approaches. The low additive SSB Phase Noise of -136 dBc/Hz at 100 kHz offset helps maintain good system noise performance. All data is taken with the chip connected via two 0.025mm (1 mil) wire bonds of minimal length 0.31 mm (12 mils). Electrical Specifi cations, TA = +25 C, Vdd1, Vdd2 = +5V, +4 dBm Drive Level Parameter Frequency Range, Input Frequency Range, Output Output Power Fo Isolation (with respect to output level) 3Fo Isolation (with respect to output level) Input Return Loss Output Return Loss SSB Phase Noise (100 kHz Offset @ Input Frequency = 19 GHz) Supply Current (Idd1 & Idd2) 70 14 Min. Typ. 6.5 - 12.3 13.0 - 24.6 17 25 25 7 7 -136 88 100 Max. Units GHz GHz dBm dBc dBc dB dB dBc/Hz mA 2 - 68 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 HMC814 v00.1109 GaAs MMIC x2 ACTIVE FREQUENCY MULTIPLIER, 13 - 24.6 GHz OUTPUT Output Power vs. Temperature @ +4 dBm Drive Level 20 Output Power vs. Drive Level 25 OUTPUT POWER (dBm) OUTPUT POWER (dBm) 16 15 2 FREQUENCY MULTIPLIERS - ACTIVE - CHIP 2 - 69 0 dBm 1 dBm 2 dBm 3 dBm 4 dBm 5 dBm 6 dBm 12 5 8 +25C +85C -55C -5 4 -15 0 12.5 14.5 16.5 18.5 20.5 22.5 24.5 26.5 -25 12.5 14.5 16.5 18.5 20.5 22.5 24.5 26.5 FREQUENCY (GHz) FREQUENCY (GHz) Output Power vs. Supply Voltage @ +4 dBm Drive Level 20 Isolation @ +4 dBm Drive Level 20 OUTPUT POWER (dBm) 12 OUTPUT POWER (dBm) 16 10 0 8 4.5V 5.0V 5.5V -10 Fo 2 Fo 3 Fo 4 Fo 4 -20 0 12.5 14.5 16.5 18.5 20.5 22.5 24.5 26.5 -30 12.5 14.5 16.5 18.5 20.5 22.5 24.5 26.5 FREQUENCY (GHz) FREQUENCY (GHz) Output Power vs. Input Power 20 OUTPUT POWER (dBm) 15 10 15 GHz 19 GHz 23 GHz 24 GHz 5 0 0 1 2 3 4 5 6 7 8 9 10 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 HMC814 v00.1109 GaAs MMIC x2 ACTIVE FREQUENCY MULTIPLIER, 13 - 24.6 GHz OUTPUT Input Return Loss vs. Temperature 0 Output Return Loss vs. Temperature 0 -5 RETURN LOSS (dB) -10 RETURN LOSS (dB) 2 FREQUENCY MULTIPLIERS - ACTIVE - CHIP -5 -10 -15 +25C +85C -55C -15 +25C +85C -55C -20 -20 -25 -25 -30 6 7 8 9 10 11 12 13 -30 12.5 14.5 16.5 18.5 20.5 22.5 24.5 26.5 FREQUENCY (GHz) FREQUENCY (GHz) Phase Noise @ 19 GHz -10 -30 PHASE NOISE (dBc/Hz) -50 -70 -90 -110 -130 -150 -170 2 10 10 3 10 4 10 5 10 6 10 7 10 8 FREQUENCY (Hz) Absolute Maximum Ratings RF Input (Vdd = +5V) Supply Voltage (Vdd1, Vdd2) Channel Temperature Continuous Pdiss (T= 85 C) (derate 8.7 mW/C above 85 C) Thermal Resistance (channel to die bottom) Storage Temperature Operating Temperature +10 dBm +5.5 Vdc 175 C 782 mW 115 C/W -65 to +150 C -55 to +85 C Typical Supply Current vs. Vdd Vdd (Vdc) 4.5 5.0 5.5 Idd (mA) 87 88 89 Note: Multiplier will operate over full voltage range shown above. ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS 2 - 70 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 HMC814 v00.1109 GaAs MMIC x2 ACTIVE FREQUENCY MULTIPLIER, 13 - 24.6 GHz OUTPUT Outline Drawing 2 FREQUENCY MULTIPLIERS - ACTIVE - CHIP 2 - 71 NOTES: 1. ALL DIMENSIONS ARE IN INCHES [MM] 2. DIE THICKNESS IS .004" 3. TYPICAL BOND PAD IS .004" SQUARE 4. BOND PAD METALIZATION: GOLD 5. BACKSIDE METALIZATION: GOLD 6. BACKSIDE METAL IS GROUND 7. NO CONNECTION REQUIRED FOR UNLABELED BOND PADS 8. OVERALL DIE SIZE .002" 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 HMC814 v00.1109 GaAs MMIC x2 ACTIVE FREQUENCY MULTIPLIER, 13 - 24.6 GHz OUTPUT Pin Description 2 FREQUENCY MULTIPLIERS - ACTIVE - CHIP Pin Number Function Description Pin is AC coupled and matched to 50 Ohms. Interface Schematic 1 RFIN 2, 3 Vdd1, Vdd2 Supply voltage 5V 0.5V. External bypass capacitors of 100 pF, 1,000 pF and 2.2 F are recommended. 4 RFOUT Pin is AC coupled and matched to 50 Ohms. Assembly Diagram 2 - 72 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 HMC814 v00.1109 GaAs MMIC x2 ACTIVE FREQUENCY MULTIPLIER, 13 - 24.6 GHz OUTPUT Mounting & Bonding Techniques for Millimeterwave GaAs MMICs The die should be attached directly to the ground plane eutectically or with conductive epoxy (see HMC general Handling, Mounting, Bonding Note). 50 Ohm Microstrip transmission lines on 0.127mm (5 mil) thick alumina thin film substrates are recommended for bringing RF to and from the chip (Figure 1). If 0.254mm (10 mil) thick alumina thin film substrates must be used, the die should be raised 0.150mm (6 mils) so that the surface of the die is coplanar with the surface of the substrate. One way to accomplish this is to attach the 0.102mm (4 mil) thick die to a 0.150mm (6 mil) thick molybdenum heat spreader (moly-tab) which is then attached to the ground plane (Figure 2). Microstrip substrates should be brought as close to the die as possible in order to minimize ribbon bond length. Typical die-to-substrate spacing is 0.076mm (3 mils). Gold ribbon of 0.075 mm (3 mil) width and minimal length <0.31 mm (<12 mils) is recommended to minimize inductance on RF, LO & IF ports. An RF bypass capacitor should be used on the Vdd input. A 100 pF single layer capacitor (mounted eutectically or by conductive epoxy) placed no further than 0.762mm (30 Mils) from the chip is recommended. 0.102mm (0.004") Thick GaAs MMIC Wire 3 mil Ribbon Bond 0.076mm (0.003") 2 FREQUENCY MULTIPLIERS - ACTIVE - CHIP 2 - 73 RF Ground Plane 0.127mm (0.005") Thick Alumina Thin Film Substrate Figure 1. Handling Precautions Follow these precautions to avoid permanent damage. Storage: All bare die are placed in either Waffle or Gel based ESD protective containers, and then sealed in an ESD protective bag for shipment. Once the sealed ESD protective bag has been opened, all die should be stored in a dry nitrogen environment. Cleanliness: Handle the chips in a clean environment. DO NOT attempt to clean the chip using liquid cleaning systems. Storage: All bare die are placed in either Waffle or Gel based ESD protective containers, and then sealed in an ESD protective bag for shipment. Once the sealed ESD protective bag has been opened, all die should be stored in a dry nitrogen environment. Static Sensitivity: Follow ESD precautions to protect against > 250V ESD strikes. 0.102mm (0.004") Thick GaAs MMIC Ribbon Bond 0.076mm (0.003") RF Ground Plane 0.150mm (0.005") Thick Moly Tab 0.254mm (0.010") Thick Alumina Thin Film Substrate Figure 2. Transients: Suppress instrument and bias supply transients while bias is applied. Use shielded signal and bias cables to minimize inductive pick-up. General Handling: Handle the chip along the edges with a vacuum collet or with a sharp pair of bent tweezers. The surface of the chip may have fragile air bridges and should not be touched with vacuum collet, tweezers, or fingers. Mounting The chip is back-metallized and can be die mounted with AuSn eutectic preforms or with electrically conductive epoxy. The mounting surface should be clean and flat. Eutectic Die Attach: A 80/20 gold tin preform is recommended with a work surface temperature of 255 deg. C and a tool temperature of 265 deg. C. When hot 90/10 nitrogen/hydrogen gas is applied, tool tip temperature should be 290 deg. C. DO NOT expose the chip to a temperature greater than 320 deg. C for more than 20 seconds. No more than 3 seconds of scrubbing should be required for attachment. Epoxy Die Attach: Apply a minimum amount of epoxy to the mounting surface so that a thin epoxy fillet is observed around the perimeter of the chip once it is placed into position. Cure epoxy per the manufacturer's schedule. Wire Bonding Ball or wedge bond with 0.025mm (1 mil) diameter pure gold wire. Thermosonic wirebonding with a nominal stage temperature of 150 deg. C and a ball bonding force of 40 to 50 grams or wedge bonding force of 18 to 22 grams is recommended. Use the minimum level of ultrasonic energy to achieve reliable wirebonds. Wirebonds should be started on the chip and terminated on the package or substrate. All bonds should be as short as possible <0.31mm (12 mils). 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 |
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