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| AT90-0283 Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz Features * * * * * * * * Attenuation: 0.5 dB Steps to 15.5 dB Low DC Power Consumption Small Footprint, JEDEC Package Integral TTL Driver 50 ohm Impedance Test Boards are Available Tape and Reel Packaging Available CSP-1 Package Rev. V10 Functional Schematic Description M/A-COM's AT90-0283 is a GaAs FET 5-bit digital attenuator with integral TTL driver. Step size is 0.5 dB providing a 15.5 dB total attenuation range. This device is in an PQFN plastic surface mount package. AT90-0283 is ideally suited for use where accuracy, fast speed, very low power consumption and low costs are required. Pin Configuration1 Pin No. 1 2 3 4 Function GND C8 C4 C2 C1 C0.5 GND NC NC NC 2 Pin No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Function NC NC NC NC NC NC NC NC NC GND RF2 GND NC2 -Vee NC +Vcc Ordering Information Part Number AT90-0283 AT90-0283TR AT90-0283-TB 5 6 Package Bulk Packaging 1000 piece reel Sample Test Board 7 8 9 10 11 GND RF1 GND NC NC NC Note: Reference Application Note M513 for reel size information. 12 13 14 15 16 1. 2. The exposed pad centered on the package bottom must be connected to RF and DC ground. (For PQFN Packages) Pins 10 & 29 must be isolated 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: +91.80.4155721 * 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. AT90-0283 Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz Electrical Specifications: TA = 25C, Z0 = 50 Parameter Insertion Loss Attenuation Accuracy Rev. V10 Test Conditions -- Individual Bits 0.5-1-4-8 dB Individual Bit 2 dB Any Combination of Bits 1 to 15.5 dB Full Range 50% Cntl to 90%/10% RF 10% to 90% or 90% to 10% -- -- Two-tone inputs up to +5 dBm -- -- LOW-level input voltage HIGH-level input voltage Vin = VCC or GND Vcntrl = VCC or GND VCC = Max, Vcntrl = VCC - 2.1 V Frequency DC - 3.5 GHz DC - 3.5 GHz DC - 3.5 GHz DC - 3.5 GHz DC - 3.5 GHz -- -- 50 MHz 0.5 - 3.5 GHz 50 MHz 0.5-3.5 GHz -- -- -- -- -- -- -- Units dB dB dB dB Ratio ns ns dBm dBm dB dB V V V V uA uA mA Min -- -- -- -- -- -- -- -- -- -- -- 4.75 -8.0 0.0 2.0 -1.0 -- -- Typ 2.8 -- -- -- 1.6:1 75 20 +21 +29 +35 +48 5.0 -5.0 -- -- -- 250 -- Max 3.2 (.3 +5% of atten setting) (.4 +10% of atten setting) (.5 +7% of atten setting) 1.8:1 150 50 -- -- -- -- 5.25 -4.75 0.8 5.0 1.0 400 1.0 VSWR Switching Speed 1 dB Compression Input IP3 Vcc Vee VIL VIH lin (Input Leakage Current) Icc (Quiescent Supply Current) Icc (Additional Supply Current Per TTL Input Pin) IEE Thermal Resistance jc VEE min to max, Vin = VIL or VIH -- -- -- mA C/W -1.0 -- -0.2 15 -- -- 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: +91.80.4155721 * 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. AT90-0283 Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz Rev. V10 Recommended PCB Configuration 6 Absolute Maximum Ratings 3,4 Parameter Max. Input Power 0.05 GHz 0.5 - 3.5 GHz VCC VEE VCC - VEE Vin 5 Absolute Maximum +27 dBm +34 dBm -0.5V VCC +7.0V -8.5V VEE +0.5V -0.5V VCC - VEE 14.5V -0.5V Vin VCC + 0.5V -40C to +85C -65C to +125C Operating Temperature Storage Temperature 3. 4. 5. Exceeding any one or combination of these limits may cause permanent damage to this device. M/A-COM does not recommend sustained operation near these survivability limits. Standard CMOS TTL interface, latch-up will occur if logic signal is applied prior to power supply. 6. Application Note C2083 is available on line at www.macom.com Handling Procedures Please observe the following precautions to avoid damage: Truth Table (Digital Attenuator) C8 0 0 0 0 0 1 1 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. C4 0 0 0 0 1 0 1 C2 0 0 0 1 0 0 1 C1 0 0 1 0 0 0 1 C0.5 0 1 0 0 0 0 1 Attenuation Loss, Reference 0.5 dB 1.0 dB 2.0 dB 4.0 dB 8.0 dB 15.5 dB Moisture Sensitivity The MSL rating for this part is defined as Level 2 per IPC/JEDEC J-STD-020. Parts shall be stored and/or baked as required for MSL Level 2 parts. 0 = TTL Low; 1 = TTL High 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: +91.80.4155721 * 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. AT90-0283 Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz Typical Performance Curves Insertion Loss VSWR @ Insertion Loss Rev. V10 3.0 1.75 Inp ut Out p ut 2.5 Lo ss (dB) VSWR Ratio 0 500 1000 1500 2000 2500 3000 3500 1.50 2.0 1.5 1.0 1.25 1.00 0 500 1000 1500 2000 2500 3000 3500 Frequency (MHz) Fre que ncy (MHz ) Attenuation Error, 0.5 dB Bit 1.0 Attenuation Error, 1 dB Bit 1.0 0.5 0.5 Error (dB) Error (dB) 0.0 0.0 -0.5 -0.5 -1.0 0 500 1000 1500 2000 2500 3000 3500 -1.0 0 500 1000 1500 2000 2500 3000 3500 Frequency (MHz) Fre que ncy (MHz ) Attenuation Error, 2 dB Bit 1.0 Attenuation Error, 4 dB Bit 1.0 0.5 Error (dB) 0.0 Error (dB) 0 500 1000 1500 2000 2500 3000 3500 0.5 0.0 -0.5 -1.0 -0.5 0 500 1000 1500 2000 2500 3000 3500 Fre que ncy (MHz ) Fre que ncy (MHz ) 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: +91.80.4155721 * 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. AT90-0283 Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz Rev. V10 Typical Performance Curves Attenuation Error, 8 dB Bit Attenuation Error, Max. Attenuation 1.0 3.0 2.0 Error (dB) Error (dB) 0.5 1.0 0.0 0.0 -0.5 0 500 1000 1500 2000 2500 3000 3500 -1.0 0 500 1000 1500 2000 2500 3000 3500 Fre que ncy (MHz ) Fre que ncy (MHz ) VSWR, 0.5 dB Bit Out p ut VSWR, 1 dB Bit I np ut O ut p ut 1.6 Inp ut 1.6 VSWR Ratio VSWR Ratio 1.4 1.4 1.2 1.2 1.0 0 500 1000 1500 2000 2500 3000 3500 1.0 0 500 1000 1500 2000 2500 3000 3500 Frequency (MHz) Fre que ncy (MHz) 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: +91.80.4155721 * 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. AT90-0283 Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz Typical Performance Curves VSWR, 2 dB Bit VSWR, 4 dB Bit Rev. V10 Inp ut 1.8 Out p ut Inp ut 1.6 O ut p ut VSWR Ratio 1.6 VSWR Ratio 1.4 1.4 1.2 1.2 1.0 0 500 1000 1500 2000 2500 3000 3500 1.0 0 500 1000 1500 2000 2500 3000 3500 Fre que ncy (MHz ) Fre que ncy (MHz ) VSWR, 8 dB Bit VSWR, Maximum Attenuation Inp ut 1.6 Out p ut 1.8 Inp ut Out p ut VSW R Ra tio 1.4 VSW R Ra tio 0 500 1000 1500 2000 2500 3000 3500 1.6 1.4 1.2 1.2 1.0 1.0 0 500 1000 1500 2000 2500 3000 3500 Frequency (MHz) Frequency (MHz) 6 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: +91.80.4155721 * 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. AT90-0283 Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz CSP-1, 4 x 6 mm, 32-lead PQFN Rev. V10 Reference Application Note M538 for lead-free solder reflow recommendations. 7 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: +91.80.4155721 * 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. |
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