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| AT-119 2.25 Volt Voltage Variable Absorptive Attenuator 42 dB, 1.8 - 2.5 GHz Features * * * * * Single Positive Voltage Control: 0 to +2.25 Volts 42 dB Typical Attenuation Range at 2.4 GHz Low DC Power Consumption SOT-25 Plastic Package Tape and Reel Packaging Available Rev. V9 Functional Schematic 5 VCC 4 VCTL Description M/A-COM's AT-119 is a GaAs MMIC voltage variable absorptive attenuator in a low cost, SOT-25 five-lead, surface mount plastic package. M/A-COM fabricates the AT-119 with a proven monolithic GaAs 0.5 micron gate process that features full chip passivation for performance and reliability. 1 RF 2 GND 3 RF Applications The AT-119 is ideally suited for applications that require fine tuning, linear attenuation with voltage, and very low power consumption. Typical applications for the AT-119 include automatic gain control circuits in satellite radio receivers and other wireless receivers. 100pF 100pF Pin Configuration Pin 1 2 3 Function RF GND RF VCTL VCC Description RF (input / output) Ground RF (input / output) Control Voltage DC Supply Voltage Ordering Information 1 Part Number AT-119 AT-119TR-3000 AT-119SMB Package SOT-25 Plastic Package 3000 piece reel Sample Test Board (Includes 5 Samples) 4 5 Absolute Maximum Ratings 2,3 TA = +25C (unless otherwise specified) Parameter Input Power Supply Voltage VCC Control Voltage VCTL Operating Temperature Storage Temperature 1. Reference Application Note M513 for reel size information. Absolute Maximum +21 dBm -1V VCC +8 V -1V VCTL VCC +0.5 V -40C to +85C -65C to +150C 2. Exceeding any one or combination of these limits may cause permanent damage to this device. 3. M/A-COM does not recommend sustained operation near these survivability limits. 1 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AT-119 2.25 Volt Voltage Variable Absorptive Attenuator 42 dB, 1.8 - 2.5 GHz Electrical Specifications: TA = 25C, Frequency = 2.4 GHz, VCC = 3.3 V, Z0 = 50 Parameter Insertion Loss Maximum Attenuation Attenuation Slope Return Loss Input Power for 1dB Change in Attenuation Input 3rd Order Intercept Point Switching Speed Transients Rev. V9 Test Conditions 4,5 VCTL = 2.25 V VCTL = 0.5 V 0.75 V < VCTL < 1.75 V 0.0 V < VCTL < 0.75 V 0.75 V < VCTL < 1.75 V 1.75 V < VCTL < 2.25 V 0.75 V < VCTL < 2.25 V 0.75 V < VCTL < 2.25 V 50% VCTL to 10% / 90% RF VCTL = 3 V, In-Band Units dB dB dB/V dB dB dB dBm dBm nS mV Min. -- 37 24 -- -- -- -- -- -- -- Typ. 2.4 42 -- 6 10 14 10 15 100 10 Max. 3.2 -- -- -- -- -- -- -- -- -- 4. External DC blocking capacitors are required on all RF ports. 5. VCC = +3.3 V @ 50 A typical. VCTL = 0 V to +2.25 V @ 50 A typical. Application Schematic VCC V control Handling Procedures Please observe the following precautions to avoid damage: 100 pF RF IN/ OUT Static Sensitivity 220 pF 100 pF RF IN/ OUT Gallium Arsenide Integrated Circuits are sensitive to electrostatic discharge (ESD) and can be damaged by static electricity. Proper ESD control techniques should be used when handling these devices. 15 pF 2 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AT-119 2.25 Volt Voltage Variable Absorptive Attenuator 42 dB, 1.8 - 2.5 GHz Typical Performance Curves Insertion Loss vs. Frequency @ 2.25 V Control Voltage 4.0 3.5 Rev. V9 Attenuation vs. Control Voltage @ +25C 0 10 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 +25C -40C +85C 20 30 40 1.8 GHz 2.1 GHz 2.4 GHz 50 60 3.0 2.5 2.0 1.5 1.0 0.5 0.0 Frequency (GHz) Control Voltage (V) Typical Device Variation, 2.4 GHz 0 Attenuation vs. Frequency @ 0.0 V Control Voltage 0 10 10 20 20 30 30 40 40 50 +25C -40C +85C 50 60 3.0 2.5 2.0 1.5 1.0 0.5 0.0 60 0.5 1.0 1.5 2.0 2.5 3.0 Control Voltage (V) Frequency (GHz) Return Loss vs. Control Voltage 0 Insertion Loss Delta Normalized to +25C (-40C) 8 6 5 4 10 2 15 0 -2 20 1.8 GHz 2.1 GHz 2.4 GHz -4 -6 -8 25 1.8 GHz 2.1 GHz 2.4 Ghz 30 2.0 1.5 1.0 0.5 0.0 3.0 2.5 2.0 1.5 1.0 0.5 0.0 3 Control Voltage (V) Control Voltage (V) ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AT-119 2.25 Volt Voltage Variable Absorptive Attenuator 42 dB, 1.8 - 2.5 GHz Typical Performance Curves Insertion Loss Delta Normalized to +25C (+85C) 8 6 4 2 0 -2 -4 -6 -8 3.0 2.5 2.0 1.5 1.0 0.5 0.0 1.8 GHz 2.1 GHz 2.4 GHz Rev. V9 Input IP3 vs. Control Voltage @ +25C 40 35 30 25 20 15 10 5 0 3.0 2.5 2.0 1.5 1.0 0.5 0.0 Control Voltage (V) Control Voltage (V) Input Power for 1 dB Change in Attenuation 30 Input IP3 vs. Control Voltage over Temperature 40 35 IIP3 @ +25C IIP3 @ +85C IIP3 @ -40C 25 30 20 25 20 15 15 10 10 5 1.8 GHz 2.4 GHz 5 0 3.0 0 3.0 2.5 2.0 1.5 1.0 0.5 0.0 2.5 2.0 1.5 1.0 0.5 0.0 Control Voltage (V) Control Voltage (V) 4 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AT-119 2.25 Volt Voltage Variable Absorptive Attenuator 42 dB, 1.8 - 2.5 GHz SOT-25 Rev. V9 5 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions * North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. |
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