AT-259

AT-259 Voltage Variable Absorptive Attenuator 12 dB, DC - 2.0 GHz Features • • • • • • • • Attenuation: 12 dB at 1 GHz Low Intermodulation Products Low DC Power Consumption: 50 μW Single Voltage Control: 0 to -4 Volts Nanosecond Switching Speed Temperature Range: -40°C to +85°C SOT-143 Plastic Package Tape and Reel Packaging Available Rev. V5 Functional Schematic Description M/A-COM’s AT-259 is a GaAs MMIC voltage variable absorptive attenuator in a low cost SOT-143 4-Lead surface mount plastic package. The AT-259 is ideally suited for use where attenuation fine tuning, fast switching and very low power consumption are required. Typical applications include radio, cellular, GPS equipment and other automatic gain/level control circuits. The AT-259 is fabricated with a monolithic GaAs MMIC using a mature 1 micron process. The process features full chip passivation for increased performance and reliability. Pin Configuration Pin No. 1 2 Function Ground VC Pin No. 3 4 Function RF2 RF1 Ordering Information Part Number AT-259 AT-259TR AT-259SMB 1,2 Absolute Maximum Ratings 3 Parameter Package Bulk Packaging Input Power Control Voltage Operating Temperature Storage Temperature Absolute Maximum +21 dBm +5V, -8.5V -40°C to +85°C -65°C to +150°C Forward Tape and Reel Sample Board 1. Reference Application Note M513 for reel size information. 2. All sample boards include 5 loose parts. 3. Exceeding any one or combination of these limits may cause permanent damage to this device. † Reference Application Note M538 for lead-free solder reflow recommendations. Meets JEDEC moisture sensitivity level 1 requirements. 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-259 Voltage Variable Absorptive Attenuator 12 dB, DC - 2.0 GHz Electrical Specifications: TA = 25°C, Z0 = 50 Ω Parameter Test Conditions4 Frequency DC - 0.1 GHz DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 2.0 GHz DC - 2.0 GHz DC - 2.0 GHz — — — — — — 0.05 GHz 0.5 - 2.0 GHz 0.05 GHz 0.5 - 2.0 GHz Units dB dB dB dB dB dB dB Ohms Ratio nS nS mV dBm dBm dBm dBm dBm dBm Min. — — — — — — — — — — — — — — — — 18 18.5 Typ. 2.9 3.0 3.2 3.4 + 0.2 + 2.3 + 7.0 50 2.1:1 3 5 10 — — 34 47 315 365 Max. 3.1 3.2 3.5 3.8 + 0.4 + 2.5 + 7.5 — — — — — 13 21 — — — — Rev. V5 Insertion Loss — Flatness (Peak to Peak) Output Impedance VSWR Trise, Tfall Ton, Toff Transients Power Handling IP2 5 dB Attenuation 10 dB Attenuation 15 dB Attenuation — — 10% to 90% RF, 90% to 10% RF 50% Control to 90% RF, 50% Control to 10% RF In Band Linear Operation Absolute maximum Input Power Measured Relative to Input Power (For two-tone Input Power Up to +5 dBm) Measured Relative to Input Power (For two-tone Input Power Up to +5 dBm) IP3 4. Control voltage: 0 to -4 volts @ 20 µA typical. 5. For levels above 6 dB attenuation. For levels below 6 dB, the minimum specification numbers apply. SOT-143† † Meets JEDEC moisture sensitivity level 1 requirements. 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-259 Voltage Variable Absorptive Attenuator 12 dB, DC - 2.0 GHz Typical Performance Curves Insertion Loss vs. Frequency 4 Rev. V5 Attenuation vs. Frequency 20 3 15 5 10 15 2 +25°C -40°C +85°C 10 1 5 0 0.0 0.5 1.0 1.5 2.0 0 0.0 0.5 1.0 1.5 2.0 Frequency (GHz) Frequency (GHz) VSWR vs. Frequency 2.0 Attenuation vs. Control Voltage, F = 950 MHz 15 1.8 10 1.6 0 12 5 1.4 5 1.2 1.0 0.0 0.5 1.0 1.5 2.0 0 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.0 Frequency (GHz) Control Voltage (V) Handling Procedures Please observe the following precautions to avoid damage: Static Sensitivity 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. 3 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.