AT-119 2.25 Volt Voltage Variable Absorptive Attenuator 42 dB, 1.8 - 2.5 GHz Functional Schematic Features • • • • • Rev. V9 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 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 100pF 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. Ordering Information 1 Part Number Package AT-119 SOT-25 Plastic Package AT-119TR-3000 3000 piece reel AT-119SMB Sample Test Board (Includes 5 Samples) 1. Reference Application Note M513 for reel size information. 100pF Pin Configuration Pin Function Description 1 RF RF (input / output) 2 GND Ground 3 RF RF (input / output) 4 VCTL Control Voltage 5 VCC DC Supply Voltage Absolute Maximum Ratings 2,3 TA = +25°C (unless otherwise specified) Parameter Absolute Maximum Input Power +21 dBm Supply Voltage VCC -1V ≤ VCC ≤ +8 V Control Voltage VCTL -1V ≤ VCTL ≤ VCC +0.5 V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C 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 Rev. V9 Electrical Specifications: TA = 25°C, Frequency = 2.4 GHz, VCC = 3.3 V, Z0 = 50 Ω Parameter Test Conditions 4,5 Units Min. Typ. Max. Insertion Loss VCTL = 2.25 V dB — 2.4 3.2 Maximum Attenuation VCTL = 0.5 V dB 37 42 — Attenuation Slope 0.75 V < VCTL < 1.75 V dB/V 24 — — Return Loss 0.0 V < VCTL < 0.75 V 0.75 V < VCTL < 1.75 V 1.75 V < VCTL < 2.25 V dB dB dB — — — 6 10 14 — — — Input Power for 1dB Change in Attenuation 0.75 V < VCTL < 2.25 V dBm — 10 — Input 3rd Order Intercept Point 0.75 V < VCTL < 2.25 V dBm — 15 — Switching Speed 50% VCTL to 10% / 90% RF nS — 100 — Transients VCTL = 3 V, In-Band mV — 10 — 4. External DC blocking capacitors are required on all RF ports. 5. VCC = +3.3 V @ 50 µA typical. VCTL = 0 V to +2.25 V @ 50 µA typical. Handling Procedures Application Schematic VCC V control Static Sensitivity 100 pF RF IN/ OUT Please observe the following precautions to avoid damage: 220 pF 100 pF 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. RF IN/ OUT 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 Rev. V9 Typical Performance Curves Insertion Loss vs. Frequency @ 2.25 V Control Voltage Attenuation vs. Control Voltage @ +25°C 4.0 0 3.5 10 3.0 20 2.5 2.0 30 1.5 40 +25°C -40°C +85°C 1.0 1.8 GHz 2.1 GHz 2.4 GHz 50 0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 60 3.0 2.5 2.0 1.5 1.0 0.5 0.0 Control Voltage (V) Frequency (GHz) Typical Device Variation, 2.4 GHz Attenuation vs. Frequency @ 0.0 V Control Voltage 0 0 10 10 20 20 30 30 40 40 50 +25°C -40°C +85°C 50 60 60 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.5 1.0 Control Voltage (V) 1.5 2.0 2.5 3.0 Frequency (GHz) Return Loss vs. Control Voltage Insertion Loss Delta Normalized to +25°C (-40°C) 8 0 6 5 4 10 2 0 15 -2 20 1.8 GHz 2.1 GHz 2.4 GHz -6 -8 30 2.0 3 1.8 GHz 2.1 GHz 2.4 Ghz -4 25 1.5 1.0 Control Voltage (V) 0.5 0.0 3.0 2.5 2.0 1.5 1.0 0.5 0.0 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 Rev. V9 Typical Performance Curves Insertion Loss Delta Normalized to +25°C (+85°C) Input IP3 vs. Control Voltage @ +25°C 8 40 6 35 4 30 2 25 0 20 -2 15 1.8 GHz 2.1 GHz 2.4 GHz -4 10 5 -6 0 -8 3.0 2.5 2.0 1.5 1.0 0.5 0.0 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 Input IP3 vs. Control Voltage over Temperature 40 30 IIP3 @ +25C IIP3 @ +85C IIP3 @ -40C 35 25 30 20 25 20 15 15 10 10 5 0 3.0 1.8 GHz 2.4 GHz 2.5 2.0 1.5 5 1.0 Control Voltage (V) 0.5 0.0 0 3.0 2.5 2.0 1.5 1.0 0.5 0.0 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 Rev. V9 SOT-25 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.