MAATSS0001 Digital Attenuator, 5-Bit, 15.5 dB 400 - 2500 MHz Features • • • • Rev. V7 Functional Schematic 5 Bits, 0.5 dB Steps Excellent Accuracy Single Positive Control (+3 V to +5 V) QSOP-16 (SSOP-16) Package Description M/A-COM’s MAATSS0001 is a 0.5 dB step GaAs MMIC digital attenuator with 15.5 dB attenuation range in a low cost QSOP-16 (SSOP-16) package. It requires external DC blocking capacitors on the RF ports, positive supply voltage and five individual bit control voltages. The MAATSS0001 is particularly suited where high attenuation accuracy, low insertion loss and low intermodulation products are required. Typical applications include base stations, wireless data, and wireless local loop gain level control circuits. The MAATSS0001 is fabricated using M/A-COM’s GaAs 1.0 micron process. The process features full chip passivation for increased performance and reliability. Ordering Information 1 Part Number Package MAATSS0001 Bulk Packaging MAATSS0001TR 1000 piece reel MAATSS0001SMB Sample Test Board Pin Configuration Pin No. Function Pin No. Function 1 GND 9 RF2 2 GND 10 GND 3 VC1 11 GND 4 VC2 12 GND 5 VC3 13 GND 6 VC4 14 GND 7 VC5 15 GND 8 GND 16 RF1 Recommended Configuration 1. Reference Application Note M513 for reel size information. Absolute Maximum Ratings 2 Parameter Absolute Maximum Input Power +34 dBm Voltage +7 V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +125°C 2. Exceeding any one or combination of these limits may cause permanent damage to this device. 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. MAATSS0001 Digital Attenuator, 5-Bit, 15.5 dB 400 - 2500 MHz Rev. V7 Electrical Specifications: TA = 25 °C, Z0 = 50 Ω, Vs = +5 V, Vc = 0 V / 5 V Parameter Conditions Frequency Units Min. Typ. Max. Insertion Loss (reference state) — 0.5 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz dB dB dB — — — 1.9 2.2 2.5 2.2 2.5 2.8 VSWR Any State 0.5 - 2.5 GHz Ratio — 1.6:1 1.9:1 Accuracy Any State 0.5 - 0.8 GHz 0.8 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz Step Change Any State 0.5 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz dB dB dB 0.3 0.2 0.1 — — — 0.8 0.9 1.0 Attenuation Range — 0.5 - 2.5 GHz dB 14.3 15.5 — 1 dB Compression Input Power +3 V +5 V 0.5 - 2.5 GHz 0.5 - 2.5 GHz dBm dBm 19 22 25 30 — — IP3 Two tones, Pin < +5 dBm/tone +3 V +5 V 0.5 - 2.5 GHz 0.5 - 2.5 GHz dBm dBm 34 43 36 46 Trise, Tfall 10/90% or 90/10% RF — µS — 2 — Ton, Toff 50% CNTL to 90/10% RF — µS — 2 — Transients In Band — mV — 62 — Control Current +3 V +5 V — — µA µA — — — — 40 40 ± (0.3 + 4% atten setting) ± (0.3 + 3% atten setting) ± (0.3 + 6% atten setting) ± (0.3 + 8% atten setting) — — Truth Table 2 Control Inputs VC5 VC4 VC3 VC2 VC1 Attenuation (dB) 1 1 1 1 1 Reference 0 1 1 1 1 0.5 dB 1 0 1 1 1 1 dB 1 1 0 1 1 2 dB 1 1 1 0 1 4 dB 1 1 1 1 0 8 dB 1. 0 = 0.0 V ± 0.2 V, 1 = Vs = 5.0 V ± 0.2 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. MAATSS0001 Digital Attenuator, 5-Bit, 15.5 dB 400 - 2500 MHz Rev. V7 Typical Performance Curves Insertion Loss Attenuation at Major Bits 5 20 +25ºC -40ºC +85ºC 4 15 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB 3 10 2 5 1 0 0 0 500 1000 1500 2000 2500 3000 0 500 1000 Frequency (MHz) 1500 2000 2500 3000 Frequency (MHz) Input Return Loss Output Return Loss 0 0 -10 -10 -20 -20 -30 -30 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB -40 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB -40 -50 -50 0 500 1000 1500 2000 2500 0 3000 500 1000 1500 2000 2500 3000 Frequency (MHz) Frequency (MHz) Attenuation Accuracy vs. Setting Attenuation Accuracy 2 0.5 0 0.0 -0.5 -2 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB -4 -1.0 -6 -1.5 -8 -2.0 250 MHz 400 MHz 900 MHz 1900 MHz 2200 MHz 2500 MHz -2.5 -10 0 500 1000 1500 2000 Frequency (MHz) 2500 3000 0 4 8 12 16 Attenuation Setting (dB) 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. MAATSS0001 Digital Attenuator, 5-Bit, 15.5 dB 400 - 2500 MHz Rev. V7 Typical Performance Curves Step size (low frequency) Step size (high frequency) 1.0 1.0 250 MHz 400 MHz 900 MHz 0.8 1900 MHz 2200 MHz 2500 MHz 0.8 0.6 0.6 0.4 0.4 0.2 0.2 0.0 0.0 0 4 8 12 16 0 4 Attenuation Setting (dB) 16 55 55 +25ºC -40ºC +85ºC 50 +25ºC -40ºC +85ºC 50 45 45 40 40 35 35 1000 1500 2000 2500 30 500 1000 55 0.5 50 0.4 45 0.3 0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB 35 2000 2500 Sample Board Loss IIP3, +5 V, vs. Attenuation Setting 40 1500 Frequency (MHz) Frequency (MHz) 30 500 12 IIP3, +3 V, at 0 dB Attenuation Setting IIP3, +5 V, at 0 dB Attenuation Setting 30 500 8 Attenuation Setting (dB) +25ºC -40ºC +85ºC 0.2 0.1 0.0 1000 1500 Frequency (MHz) 2000 2500 0 500 1000 1500 2000 2500 Frequency (MHz) 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. MAATSS0001 Digital Attenuator, 5-Bit, 15.5 dB 400 - 2500 MHz Rev. V7 QSOP-16 (SSOP-16) Operating Instructions The MAATSS0001 is designed to operate with 5 V logic levels. The difference between +3 V and +5 V operation is minimal for small signal performance. IIP3, however, is a strong function of voltage. +3 V is the minimum voltage at which the product will reliably operate. The MAATSS0001 requires a parallel interface that allows the user to enter a 5 bit digital word. Each state increments the attenuation by 0.5 dB giving a total range of 15.5 dB. The MAATSS0001 is not internally DC blocked. This means that the device requires DC blocking capacitors on the RF1 and RF2 ports. M/A-COM recommends 0.1 uF to allow for the entire frequency range to be utilized. Higher frequency applications can use smaller value capacitors as DC blocks. For application information concerning this and other M/A-COM products, please visit our website at www.macom.com, where information including soldering profiles, reliability procedures, and Sparameter data can be found. 5 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.