MAAD-010305 Digital Attenuator, 1-Bit, 15 dB, 75 Ω DC - 1.1 GHz Functional Schematic Features • • • • • • • • Rev. V1 Single 15-dB Step Insertion Loss: 0.3 dB @ 1.1 GHz 75 Ω Impedance 2.5 to 5.0 Volt Operation Positive or Negative Voltage Control Lead-Free SOT-25 Package Halogen-Free “Green” Mold Compound RoHS* Compliant and 260°C Reflow Compatible Description The MAAD-010305 is a 1-bit, 15-dB step GaAs MMIC digital attenuator in a lead-free SOT-25, 5 lead surface mount plastic package. The MAAD-010305 is fabricated as a monolithic GaAs integrated circuit using a mature pHEMT process. The process features full chip passivation for performance and reliability. This device is ideally suited for use where high accuracy, very low power consumption and low intermodulation products are required. Ordering Information Pin Configuration 1,2 Pin No. Function 1 RF Input Port 2 Ground 3 RF Output Port Part Number Package 4 V1 MAAD-010305-TR1000 1000 piece reel 5 V2 MAAD-010305-TR3000 3000 piece reel MAAD-010305-001SMB Sample Board 1. Reference Application Note M513 for reel size information. 2. All sample boards include 5 loose parts. * Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 1 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology 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. MAAD-010305 Digital Attenuator, 1-Bit, 15 dB, 75 Ω DC - 1.1 GHz Rev. V1 Electrical Specifications3: TA = 25°C, VC = +2.5 Volts, Z0 = 75 Ω Parameter Test Conditions Units Min. Typ. Max. Insertion Loss (Reference State) 1.1 GHz dB — 0.3 0.45 Attenuation 1.1 GHz dB 14.6 15.1 15.6 Input Return Loss DC - 1.1 GHz dB — 14 — Output Return Loss DC - 1.1 GHz dB — 14 — Input IP3 1.1 GHz Insertion Loss State Attenuation State dBm — — 46 46 — — P1dB 1.1 GHz Insertion Loss State Attenuation State dBm — — 20 20 — — CTB 157 Channels, PIN = 35 dBmV/ch. dBc — 70 — CSO 157 Channels, PIN = 35 dBmV/ch. dBc — 66 — Trise, Tfall 10% to 90% RF, 90% to 10% RF ns — 15 — Ton, Toff 50% Control to 90% RF, 50% Control to 10% RF ns — 20 — Transients In-band mV — 20 — Control Current — µA — — 5 3. For positive voltage control, external DC blocking capacitors are required on all RF ports (pins 1, 2 and 3). Absolute Maximum Ratings 4,5 Parameter Absolute Maximum Input Power +21 dBm Control Voltage 8V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C 4. Exceeding any one or combination of these limits may cause permanent damage to this device. 5. M/A-COM Technology Solutions does not recommend sustained operation near these survivability limits. Truth Table Mode (Control) V1 Positive 6 0 ± 0.2V +2.5V to +5V +2.5V to +5V 15 dB 0 ± 0.2V Reference State Negative 7 0 ± 0.2V -2.5V to -5V -2.5V to -5V 0 ± 0.2V V2 Attenuation Reference State 15 dB 6. External DC blocking capacitors are required as noted. 7. If negative control is used, DC blocking capacitors are not required on RF ports and ground. 2 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology 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. MAAD-010305 Digital Attenuator, 1-Bit, 15 dB, 75 Ω DC - 1.1 GHz Positive Control Voltage Schematic Rev. V1 Recommended PCB Layout PCB Land Pattern 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. Plated Vias are .024 diameter 3 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology 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. MAAD-010305 Digital Attenuator, 1-Bit, 15 dB, 75 Ω DC - 1.1 GHz Rev. V1 Typical Performance Curves with C1,C2,C3 = 0.01 µF, positive or negative mode (control) Insertion Loss Relative Attenuation 2.0 -12 1.5 +25°C -40°C +85°C 1.0 +25°C -40°C +85°C -13 -14 0.5 0.0 -15 -0.5 -16 -1.0 -17 -1.5 -2.0 0.0 0.5 1.0 1.5 2.0 -18 0.0 0.5 1.0 Frequency (GHz) 1.5 2.0 1.5 2.0 1.5 2.0 Frequency (GHz) Input Return Loss_Full Attenuation Input Return Loss 0 0 +25°C -40°C +85°C -10 -5 +25°C -40°C +85°C -10 -15 -20 -20 -30 -25 -30 -40 -35 -50 0.0 0.5 1.0 1.5 2.0 -40 0.0 0.5 Frequency (GHz) 1.0 Frequency (GHz) Output Return Loss Output Return Loss_Full Attenuation 0 0 -5 +25°C -40°C +85°C -10 +25°C -40°C +85°C -10 -15 -20 -20 -30 -25 -30 -40 -35 -50 0.0 0.5 1.0 Frequency (GHz) 1.5 2.0 -40 0.0 0.5 1.0 Frequency (GHz) 4 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology 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. MAAD-010305 Digital Attenuator, 1-Bit, 15 dB, 75 Ω DC - 1.1 GHz Rev. V1 Lead-Free SOT-25† † Reference Application Note M538 for lead-free solder reflow recommendations. Plating is 100% matte tin over copper. 5 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology 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.