AT-264

AT-264 Digital Attenuator, 4-Bit, Single Control 30 dB, 0.5 - 2.0 GHz Features • • • • Positive Single Control 2-dB Attenuation Steps to 30 dB Low DC Power Consumption TSSOP-16 Plastic Package Rev. V7 Functional Schematic 2,3 Vs 16 15 14 13 12 1 11 10 9 Description M/A-COM’s AT-264 is a 4-bit, 2-dB step GaAs MMIC digital attenuator in a low cost TSSOP-16 surface mount plastic package. The AT-264 is ideally suited for use where high accuracy, very low power consumption and low intermodulation products are required. Typical applications include radio, cellular, wireless LANs, GPS equipment and other gain/level control circuits. The AT-264 is fabricated using a mature 1 micron GaAs MESFET process. The process features full chip passivation for increased performance and reliability. 1 16 8 4 2 2 3 4 5 6 7 8 2. Blocking caps are required on all RF ports (39 pF used for data measurements). 3. Vs = +5 ± 0.2 VDC must be applied at RF1 or RF2 using a 10 KΩ or greater pull-up resistor. Pin Configuration Ordering Information1 Part Number AT-264-PIN AT-264TR Package Bulk Packaging 1000 piece reel Pin No. 1 2 3 4 5 6 7 8 Function Ground Ground VC1 VC2 VC3 VC4 Ground Ground Pin No. 9 10 11 12 13 14 15 16 Function RF2 Ground Ground Ground Ground Ground Ground RF1 1. Reference Application Note M513 for reel size information. 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-264 Digital Attenuator, 4-Bit, Single Control 30 dB, 0.5 - 2.0 GHz Electrical Specifications4: TA = 25°C, Z0 = 50 Ω, VS = 5 V Parameter Reference Insertion Loss Attenuation Accuracy VSWR Trise, Tfall Ton, Toff Transients 1 dB Compression Test Conditions 0.5 - 1.0 GHz 0.5 - 2.0 GHz 0.5 - 1.0 GHz 0.5 - 2.0 GHz 1.0 - 1.5 GHz 0.5 - 2.0 GHz 10% to 90% RF, 90% to 10% RF 50% Control to 90% RF,50% Control to 10% RF In Band Input Power, 0.5 GHz Input Power, 0.9 GHz 0.5 GHz 0.5 - 2.0 GHz Measured Relative to Input (for two-tone Input Power up to +5 dBm) 0.5 GHz 0.5 - 2.0 GHz Measured Relative to Input (for two-tone Input Power up to +5 dBm) ⏐Vc⏐ = 5 V — Units dB dB Min. — — Typ. 2.0 2.2 Max. 2.4 2.6 Rev. V7 ± (0.15 dB + 5% of attenuation setting in dB) dB ± (0.3 dB + 5% of attenuation setting in dB) dB Ratio Ratio ns ns mV dBm dBm dBm dBm — — — — — — — — — 1.5:1 1.9:1 200 200 75 25 25 65 71 — — — — — — — — — IP2 IP3 dBm dBm µA µA — — — — 43 47 — — — — 10 20 IC IVS 4. External DC blocking capacitors are required on all RF ports. Loss varies at 0.003 dB/°C. Absolute Maximum Ratings 5,6 Parameter Input Power 50 MHz 500 - 2000 MHz Control Voltage Operating Temperature Storage Temperature Absolute Maximum +27 dBm +34 dBm -0.5 V < VC < 8.5 V -40°C to +85°C -65°C to +150°C Truth Table7 VC1 VC2 VC3 VC4 1 1 1 1 0 0 1 1 1 0 1 0 1 1 0 1 1 0 1 0 1 1 1 0 Attenuation (dB) Reference Insertion Loss 2 4 8 16 30 5. Exceeding any one or combination of these limits may cause permanent damage to this device. 6. M/A-COM does not recommend sustained operation near these survivability limits. 7. 0 = 0 ± 0.2 V, 1 = +5 V 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-264 Digital Attenuator, 4-Bit, Single Control 30 dB, 0.5 - 2.0 GHz Typical Performance Curves Insertion Loss 3.5 -40°C +25°C +85°C Rev. V7 VSWR 2.0 IL 2 dB 4 dB 8 dB 16 dB 30 dB 1.8 3.0 1.6 2.5 1.4 2.0 1.2 1.5 0.5 1.0 1.5 2.0 2.5 3.0 1.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) Attenuation 35 30 25 20 15 10 5 0 0.5 2 dB 4 dB 8 dB 16 dB 30 dB Attenuation Accuracy 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 1.0 1.5 2.0 2.5 3.0 0.5 1.0 1.5 2.0 2.5 3.0 2 dB 4 dB 8 dB 16 dB 30 dB Frequency (GHz) Frequency (GHz) 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. AT-264 Digital Attenuator, 4-Bit, Single Control 30 dB, 0.5 - 2.0 GHz TSSOP-16 Rev. V7 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. 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.