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| HMC-C025 v00.1205 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz 9 ATTENUATORS - CONNECTORIZED MODULES Features 0.5 dB LSB Steps to 31.5 dB Single Control Line Per Bit 0.3 dB Typical Bit Error CMOS Compatible Control Typical Applications The HMC-C025 is ideal for: * Telecom Infrastructure * Military Radio, Radar & ECM * Space Systems * Test Instrumentation Hermetically Sealed Module Field Replaceable SMA Connectors -55 to +85 C Operating Temperature General Description The HMC-C025 is a DC to 13 GHz 6-bit GaAs IC Digital Attenuator housed in a miniature hermetic module. This wideband attenuator features 4 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. Six control voltage inputs, toggled between 0 and +5V, are used to select each attenuation state. 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 & VCTL = 0/+5V Parameter Frequency (GHz) DC - 4.0 GHz 4.0 - 8.0 GHz 8.0 - 11 .0 GHz 11.0 - 13 .0 GHz DC - 13.0 GHz DC - 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 RF State All Other States 1.0 - 13.0 GHz DC - 13.0 GHz 22 45 ns ns Min. Typ. 3.2 4.2 5.0 5.5 31.5 12 (0.2 + 3% of Atten. Setting) Max (0.4 + 3% of Atten. Setting) Max (0.4 + 4% of Atten. Setting) Max (0.6 + 6% of Atten. Setting) Max 22 46 38 Max. 3.7 4.7 5.5 6.0 Units dB dB dB dB dB dB dB dB dB dB dBm dBm dBm 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) 9 - 74 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-C025 v00.1205 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz Return Loss RF1, RF2 Insertion Loss 0 -1 INSERTION LOSS (dB) -2 (Only Major States are Shown) 0 9 16 dB 31.5 dB 8 dB -5 RETURN LOSS (dB) 0.5 dB I.L -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) +25 C +85 C -40 C -10 2 dB 4 dB 1 dB -15 -20 -25 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FREQUENCY (GHz) 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 13 GHz 8 GHz 4 GHz 0.1 GHz 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) 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 31.5 dB Relative Phase vs. Frequency (Only Major States are Shown) 60 50 RELATIVE PHASE (deg) 40 30 20 10 0 -10 0.5 - 4 dB 8 dB 31.5 dB 16 dB -20 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 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 9 - 75 ATTENUATORS - CONNECTORIZED MODULES HMC-C025 v00.1205 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz Bias Voltage & Current Vdc Range= -5.0 Vdc 10% Vdc -5.0 Idc (Typ.) (mA) 5 Idc (Max.) (mA) 9 9 ATTENUATORS - CONNECTORIZED MODULES Worst Case Step Error Between Successive Attenuation States 2 1.5 1 STEP ERROR (dB) 0.5 0 -0.5 -1 -1.5 -2 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FREQUENCY (GHz) (Bias current increases with switching rate to 15 - 20 mA) Control Voltage (CMOS Compatible) State Low High Bias Condition 0 to +1.5V @ 5 A Typ. +3.5 to +5.0V @ 800 A Typ. Truth Table Control Voltage Input V1 16 dB Low Low Low Low Low Low High High V2 8 dB Low Low Low Low Low High Low High V3 4 dB Low Low Low Low High Low Low High V4 2 dB Low Low Low High Low Low Low High V5 1 dB Low Low High Low Low Low Low High V6 0.5 dB Low High Low Low Low Low Low High Attenuation State RF1 - RF2 Reference I.L. 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB Absolute Maximum Ratings Control Voltage (V1 to V6) Bias Voltage (Vdc) Storage Temperature Operating Temperature RF Input Power (0.5 - 13.0 GHz) -0.5V to +5.5V -7.0 Vdc -65 to + 150 C -55 to +85 C +25 dBm ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. 9 - 76 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-C025 v00.1205 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz Outline Drawing 9 ATTENUATORS - CONNECTORIZED MODULES NOTES: 1. PACKAGE, LEADS, COVER MATERIAL: KOVARTM 2. SPACER 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 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 - 77 HMC-C025 v00.1205 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz 9 ATTENUATORS - CONNECTORIZED MODULES Pin Description Pin Number Function Description This pin is DC coupled and matched to 50 Ohms. Blocking capacitors are required if RF line potential is not equal to 0 Vdc. Interface Schematic 1 RF1 5, 4, 3, 2, 9, 8 V1 - V6 See truth table and control voltage table. 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%. 10 GND Power Supply Ground 9 - 78 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-C025 v00.1205 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz 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 - 79 |
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