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| HMC-C018 0.5dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR MODULE, DC - 13 GHz v00.0306 9 ATTENUATORS - CONNECTORIZED MODULES Features 0.5 dB LSB Steps to 31.5 dB CMOS Compatible Serial Data Interface 0.3 dB Typical Bit Error Hermetically Sealed Module Typical Applications The HMC-C018 is ideal for: * Telecom Infrastructure * Military Radio, Radar & ECM * Space Systems * Test Instrumentation Field Replaceable SMA Connectors -55 to +85 C Operating Temperature General Description The HMC-C018 is a DC to 13 GHz 6-bit GaAs IC Digital Serial Control Attenuator housed in a miniature hermetic module. This wideband attenuator features 3.6 dB typical insertion loss, +38 dBm input IP3, and bit values of 0.5 (LSB), 1, 2, 4, 8, and 16 dB for a total attenuation of 31.5 dB. Attenuation accuracy is excellent with 0.3 dB typical step error. A six bit CMOS compatible serial control word is used to select each attenuation state and a single VDC bias of -5V allows operation at frequencies down to DC. Removable SMA connectors can be detached to allow direct connection of the module's I/O pins to a microstrip or coplanar circuit. Functional Diagram Electrical Specifications, TA = +25 C, With VDC = -5V and 0/+5V CMOS Control Parameter Insertion Loss Attenuation Range Return Loss (RF1 & RF2, All Atten. States) Attenuation Accuracy: (Referenced to Insertion Loss) All States 0.5 - 27.5 dB 28.0 - 31.5 dB All States Input Power for 0.1 dB Compression Input Third Order Intercept Point (Two-Tone Input Power= 0 dBm Each Tone) Switching Characteristics tRISE, tFALL (10/90% RF) tON/tOFF (50% CTL to 10/90% RF) REF State All Other States Frequency (GHz) DC - 4.0 GHz 4.0 - 8.0 GHz 8.0 - 13 .0 GHz DC - 13.0 GHz DC - 8.0 GHz 8.0 - 13.0 GHz DC - 3.0 GHz 3.0 - 10.0 GHz 3.0 - 10.0 GHz 10.0 - 13.0 GHz 1.0 - 13.0 GHz 1.0 - 13.0 GHz DC - 13.0 GHz 600 700 ns ns Min. Typ. 3.2 3.6 5.0 31.5 15 10 (0.2 + 3% of Atten. Setting) Max (0.4 + 3% of Atten. Setting) Max (0.5 + 6% of Atten. Setting) Max (0.6 + 6% of Atten. Setting) Max 22 46 32 Max. 3.7 4.1 6.0 Units dB dB dB dB dB dB dB dB dB dB dBm dBm dBm 9 - 80 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 HMC-C018 0.5dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR MODULE, DC - 13 GHz Return Loss RF1, RF2 Insertion Loss 0 -1 INSERTION LOSS (dB) -2 RETURN LOSS (dB) -3 -4 -5 -6 -7 -8 -9 -10 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FREQUENCY (GHz) -30 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FREQUENCY (GHz) +25 C +85 C -55 C v00.0306 (Only Major States are Shown) 0 -5 4 dB 1 dB 31.5 dB I.L 0.5 dB 8 dB 16 dB 9 ATTENUATORS - CONNECTORIZED MODULES 9 - 81 -10 -15 -20 -25 2 dB Normalized Attenuation (Only Major States are Shown) 0 NORMALIZED ATTENUATION (dB) -5 -10 -15 -20 -25 -30 -35 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FREQUENCY (GHz) Bit Error vs. Attenuation State 2 1.5 1 BIT ERROR (dB) 0.5 0 -0.5 -1 -1.5 -2 0 4 8 12 16 20 24 28 32 ATTENUATION STATE (dB) 0.1 GHz 13 GHz 8 GHz 4 GHz Bit Error vs. Frequency (Only Major States are Shown) 3 2.5 2 1.5 BIT ERROR (dB) 1 0.5 0 -0.5 -1 -1.5 -2 -2.5 -3 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FREQUENCY (GHz) 0.5-16 dB Relative Phase vs. Frequency (Only Major States are Shown) 80 70 RELATIVE PHASE (deg) 31.5 dB 60 50 40 30 20 10 0 -10 -20 0 1 2 3 4 5 6 7 8 0.5 - 4 dB 9 10 11 12 13 14 15 31.5 dB 16 dB 8 dB 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 HMC-C018 0.5dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR MODULE, DC - 13 GHz v00.0306 9 ATTENUATORS - CONNECTORIZED MODULES Worst Case Step Error Between Successive Attenuation States 1 Absolute Maximum Ratings Digital Inputs (Reset, Shift Clock, Latch Enable & Serial Input) Bias Voltage (VDC) Storage Temperature -0.5V to +5.5V -7.0 Vdc -65 to + 150 C -55 to +85 C +25 dBm 0.5 STEP ERROR (dB) 0 Operating Temperature RF Input Power (0.5 - 13.0 GHz) -0.5 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FREQUENCY (GHz) ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Bias Voltage & Current VDC Range= -5.0 Vdc 10% VDC -5.0 Idc (Typ.) (mA) 5 Idc (Max.) (mA) 9 CMOS Control Voltages State Low High Bias Condition 0 to +1.3V +3.5 to +5.0V Serial Input Truth Table Latch Enable X X X Shift Clock X Reset L H H Function Truth Table Serial Control Input C0.5 Shift register cleared Shift register clocked H L H H H H H L H H L H H H H L H H H L H H H L H H H H L H H L H H H H H L H L H H H H H H L L C1 C2 C4 C8 C16 Attenuation Settings RF1 - RF2 Reference I.L. 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB Contents of shift register transferred to Digital Attenuator Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. 9 - 82 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 HMC-C018 0.5dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR MODULE, DC - 13 GHz v00.0306 Timing Parameter Serial Input Setup Time Hold time from Serial Input to Shift Clock Setup time from Shift Clock to Latch Enable Propagation delay, Latch Enable to C0.5 through C8 Setup time from Reset to Shift Clock Clock Frequency (1/tclk) Symbol ts th tlsup Min. 20 0 40 Max. Units ns ns ns 9 ATTENUATORS - CONNECTORIZED MODULES 9 - 83 tpd - 30 ns fclk 20 - 30 ns MHz Timing Diagram 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 HMC-C018 0.5dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR MODULE, DC - 13 GHz v00.0306 9 ATTENUATORS - CONNECTORIZED MODULES Logic / Functional Diagram 9 - 84 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 HMC-C018 0.5dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR MODULE, DC - 13 GHz Programming Example to Select 0.5 dB Attenuation State v00.0306 9 ATTENUATORS - CONNECTORIZED MODULES 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 9 - 85 HMC-C018 0.5dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR MODULE, DC - 13 GHz v00.0306 9 ATTENUATORS - CONNECTORIZED MODULES Outline Drawing NOTES: 1. PACKAGE, LEADS, COVER MATERIAL: KOVARTM 2. BRACKET MATERIAL: ALUMINUM 3. PLATING: ELECTROLYTIC GOLD 50 MICROINCHES MIN., OVER ELECTROLYTIC NICKEL 75 MICROINCHES MIN. 4. ALL DIMENSIONS ARE IN INCHES [MILLIMETERS]. 5. TOLERANCES .005 [0.13] UNLESS OTHERWISE SPECIFIED. 6. FIELD REPLACEABLE SMA CONNECTORS. TENSOLITE 5602 - 5CCSF OR EQUIVALENT. 7. MOUNT MODULE TO SYSTEM PLATFORM WITH #2-56 HARDWARE 9 - 86 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 HMC-C018 0.5dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR MODULE, DC - 13 GHz v00.0306 Pin Description Pin Number Function Description Interface Schematic 9 RF1 This pin is DC coupled and matched to 50 Ohms. Blocking capacitors are required if RF line potential is not equal to 0 Vdc. 1 2 3 4 5 C R S L Shift Clock Reset Serial Input Latch Enable 6 RF2 This pin is DC coupled and matched to 50 Ohms. Blocking capacitors are required if RF line potential is not equal to 0 Vdc. 7 VDC Supply voltage: -5 Vdc 10%. (Internal diode for reverse bias protection) 8 GND Power Supply Ground 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 9 - 87 ATTENUATORS - CONNECTORIZED MODULES |
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