AT65-0283 Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz Features • • • • • • • Rev. V8 Schematic with Off-Chip Components Attenuation: 0.5 dB Steps to 15.5 dB Low DC Power Consumption Integral TTL Driver 50 ohm Impedance Test Boards are Available Tape and Reel Packaging Available SOW-16 Package Description M/A-COM's AT65-0283 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 a SOW-16 plastic surface mount package. The AT65-0283 is ideally suited for use where accuracy, fast speed, very low power consumption and low costs are required. Pin Configuration Pin No. Function Pin No. Function 1 RF 9 C8 2 GND 10 Vcc 3 GND 11 Vee 4 GND 12 C4 5 GND 13 C2 6 GND 14 C1 7 GND 15 C0.5 8 RF 16 GND Ordering Information Truth Table (Digital Attenuator) Package C8 C4 C2 C1 C0.5 Attenuation AT65-0283 Bulk Packaging 0 0 0 0 0 Loss, Reference AT65-0283TR 1000 piece reel 0 0 0 0 1 0.5 dB AT65-0283-TB Sample Test Board 0 0 0 1 0 1.0 dB 0 0 1 0 0 2.0 dB 0 1 0 0 0 4.0 dB 1 0 0 0 0 8.0 dB 1 1 1 1 1 15.5 dB Part Number Note: Reference Application Note M513 for reel size information. 0 = TTL Low; 1 = TTL High 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. AT65-0283 Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz Rev. V8 Electrical Specifications: TA = 25°C, Z0 = 50Ω Parameter Test Conditions Frequency Units Min Typ Max Insertion Loss — DC - 1.0 GHz DC - 2.0 GHz dB dB — — 2.5 2.7 2.7 3.0 Attenuation Accuracy Any Bit Any Combination of Bits DC - 2.0 GHz DC -2.0 GHz dB dB — — — — ±(.3 +4% of atten) ± (.3 +6% of atten) VSWR Full Range DC - 2.0 GHz Ratio — 1.5:1 2:1 50% Cntl to 90%/10% RF 10% to 90% or 90% to 10% — — ns ns — — 75 20 150 50 1 dB Compression — — 50 MHz 0.5 - 2.0 GHz dBm dBm — — +21 +29 — — Input IP3 Two-tone inputs up to +5 dBm 50 MHz 0.5-2.0 GHz dB dB — — +35 +48 — — Vcc Vee — — — — V V 4.75 -8.0 5.0 -5.0 5.25 -4.75 VIL VIH LOW-level input voltage HIGH-level input voltage — — V V 0.0 2.0 — — 0.8 5.0 lin (Input Leakage Current) Vin = VCC or GND — uA -1.0 — 1.0 Icc (Quiescent Supply Current) Vcntrl = VCC or GND — uA — 250 400 ΔIcc2 (Additional Supply Current Per TTL Input Pin) VCC = Max, Vcntrl = VCC - 2.1 V — mA — — 1.0 IEE VEE min to max, Vin = VIL or VIH — mA -1.0 -0.2 — Switching Speed 1 1. Decoupling capacitors (.01 µF) are required on power supply lines. 2. For calculating ΔIcc, the number of TTL input pins is 6. Absolute Maximum Ratings3,4 Parameter Absolute Maximum Max. Input Power 0.05 GHz 0.5 - 2.0 GHz +27 dBm +34 dBm VCC -0.5V ≤ VCC ≤ +7.0V VEE -8.5V ≤ VEE ≤ +0.5V VCC - VEE -0.5V ≤ VCC - VEE ≤ 14.5V Vin 5 -0.5V ≤ Vin ≤ VCC + 0.5V Operating Temperature -40ºC to +85ºC Storage Temperature -65ºC to +125ºC 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. Exceeding any one or combination of these limits may cause permanent damage to this device. 4. M/A-COM does not recommend sustained operation near these survivability limits. 5. Standard CMOS TTL interface, latch-up will occur if logic signal is applied prior to power supply. 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. AT65-0283 Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz Rev. V8 Typical Performance Curves Attenuation Accuracy 0.5, 1, 2, and 4 dB Bits Insertion Loss 0 .5, 1, 2 d B B it s 4 d B B it 0.4 0.3 Dev ia tio n (dB) Insertio n Lo ss (dB) 2.5 2 1.5 0.2 0.1 0.0 -0.1 -0.2 1 0 500 1000 1500 0 2000 500 1500 2000 Frequency (MHz) Frequency (MHz) Attenuation Accuracy 8 dB Bit and Max. Attenuation 8 dB 1000 VSWR @ Insertion Loss R F o ut R F in M ax. A t t enuat io n 1.6 1.0 1.4 0.6 VSWR Deviation (dB) 0.8 0.4 1.2 0.2 0.0 1 -0.2 0 500 1000 1500 0 2000 500 Fre que ncy (MHz) VSWR RF OUT 0.5, 1, 2, and 4 dB Bits 1500 2000 VSWR RF IN 0.5, 1, 2, 4, 8 dB Bits and Max. Attenuation 1.5 1.5 1.4 VSWR 1.4 VSWR 1000 Fre que ncy (MHz ) 1.3 1.2 1.3 1.2 1.1 1.1 1 1 0 500 1000 Frequency (MHz) 1500 2000 0 500 1000 1500 2000 Freque ncy (MHz) 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. AT65-0283 Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz Rev. V8 Typical Performance Curves VSWR RF OUT 8 dB Bit and Max. Attenuation 1.5 V SW R 1.4 1.3 1.2 1.1 1 0 500 1000 1500 2000 Frequency (MHz) SOW-16† † Reference Application Note M538 for lead-free solder reflow recommendations. 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.