HMC-C025 v02.1007 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz CONNECTORIZED MODULES - ATTENUATORS 11 Features 0.5 dB LSB Steps to 31.5 dB Single Control Line Per Bit ± 0.3 dB Typical Bit Error CMOS Compatible Control Hermetically Sealed Module Typical Applications Field Replaceable SMA Connectors The HMC-C025 is ideal for: -55 to +85 C Operating Temperature • Telecom Infrastructure • Military Radio, Radar & ECM • Space Systems General Description • Test Instrumentation 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 Specifi cations, TA = +25° C, with Vdc = -5V & VCTL = 0/+5V Parameter Frequency (GHz) Typ. Max. Units DC - 4.0 GHz 4.0 - 8.0 GHz 8.0 - 11 .0 GHz 11.0 - 13 .0 GHz 3.2 4.2 5.0 5.5 3.7 4.7 5.5 6.0 dB dB dB dB Attenuation Range DC - 13.0 GHz 31.5 dB Return Loss (RF1 & RF2, All Atten. States) DC - 13.0 GHz 12 dB Attenuation Accuracy: (Referenced to Insertion Loss) All States 0.5 - 27.5 dB 28.0 - 31.5 dB All States DC - 3.0 GHz 3.0 - 10.0 GHz 3.0 - 10.0 GHz 10.0 - 13.0 GHz ± (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 dB dB dB dB Input Power for 0.1 dB Compression 1.0 - 13.0 GHz 22 dBm 1.0 - 13.0 GHz 46 38 dBm dBm 22 45 ns ns Insertion Loss 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) 11 - 10 RF State All Other States Min. DC - 13.0 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 Online at www.hittite.com HMC-C025 v02.1007 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz (Only Major States are Shown) 0 0 -2 -5 RETURN LOSS (dB) INSERTION LOSS (dB) Insertion Loss -4 -6 +25 C +85 C -40 C -8 16 dB 31.5 dB 0.5 dB -10 2 dB I.L 8 dB 4 dB 1 dB -15 -20 -10 -25 0 3 6 9 12 15 0 3 6 FREQUENCY (GHz) 9 12 15 FREQUENCY (GHz) Normalized Attenuation Bit Error vs. Attenuation State 0 2 -5 1.5 13 GHz 8 GHz -10 -15 -20 -25 0.5 0 -0.5 -1 -30 -1.5 -35 -2 0 3 6 9 12 15 0 4 8 12 16 20 24 28 32 ATTENUATION STATE (dB) FREQUENCY (GHz) Bit Error vs. Frequency Relative Phase vs. Frequency (Only Major States are Shown) (Only Major States are Shown) 3 60 2 RELATIVE PHASE (deg) 31.5 dB 0.5-16 dB BIT ERROR (dB) 0.1 GHz 4 GHz 1 BIT ERROR (dB) NORMALIZED ATTENUATION (dB) (Only Major States are Shown) CONNECTORIZED MODULES - ATTENUATORS 11 Return Loss RF1, RF2 1 0 -1 40 31.5 dB 16 dB 20 8 dB 0 -2 0.5 - 4 dB -3 -20 0 3 6 9 FREQUENCY (GHz) 12 15 0 3 6 9 12 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 Online at www.hittite.com 11 - 11 HMC-C025 v02.1007 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz 11 - 12 Worst Case Step Error Between Successive Attenuation States Bias Voltage & Current 2 Vdc Range= -5 Vdc ± 10% Vdc Idc (Typ.) (mA) Idc (Max.) (mA) -5.0 5 9 1 STEP ERROR (dB) CONNECTORIZED MODULES - ATTENUATORS 11 (Bias current increases with switching rate to 15 - 20 mA) 0 -1 Control Voltage (CMOS Compatible) -2 0 3 6 9 12 State Bias Condition Low 0 to +1.5V @ 5 µA Typ. High +3.5 to +5.0V @ 800 µA Typ. 15 FREQUENCY (GHz) Truth Table Absolute Maximum Ratings Control Voltage Input V1 16 dB V2 8 dB V3 4 dB V4 2 dB V5 1 dB V6 0.5 dB Low Low Low Low Low Low Attenuation State RF1 - RF2 Reference I.L. Low Low Low Low Low High 0.5 dB Low Low Low Low High Low 1 dB Low Low Low High Low Low 2 dB Low Low High Low Low Low 4 dB Low High Low Low Low Low 8 dB High Low Low Low Low Low 16 dB High High High High High High 31.5 dB Control Voltage (V1 to V6) -0.5V to +5.5V Bias Voltage (Vdc) -7 Vdc Storage Temperature -65 to + 150 °C Operating Temperature -55 to +85 °C RF Input Power (0.5 - 13.0 GHz) +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. 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 Online at www.hittite.com HMC-C025 v02.1007 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz 11 CONNECTORIZED MODULES - ATTENUATORS Outline Drawing Package Information Package Type C-6 Package Weight [1] 17.4 gms [2] Spacer Weight 3 gms [2] [1] Includes the connectors [2] ±1 gms Tolerance NOTES: 1. PACKAGE, LEADS, COVER MATERIAL: KOVAR™ 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 Online at www.hittite.com 11 - 13 HMC-C025 v02.1007 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz CONNECTORIZED MODULES - ATTENUATORS 11 11 - 14 Pin Description Pin Number Function Description 1 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. 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 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 Online at www.hittite.com HMC-C025 v02.1007 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR MODULE, DC - 13 GHz CONNECTORIZED MODULES - ATTENUATORS 11 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 Online at www.hittite.com 11 - 15