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| MAATSS0001 Digital Attenuator, 5-Bit, 15.5 dB 400 - 2500 MHz Features * * * * 5 Bits, 0.5 dB Steps Excellent Accuracy Single Positive Control (+3 V to +5 V) QSOP-16 (SSOP-16) Package Rev. V7 Functional Schematic 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. Pin Configuration Pin No. 1 2 3 4 5 6 Function GND GND VC1 VC2 VC3 VC4 VC5 GND Pin No. 9 10 11 12 13 14 15 16 Function RF2 GND GND GND GND GND GND RF1 Ordering Information Part Number MAATSS0001 MAATSS0001TR MAATSS0001SMB 1 7 Package Bulk Packaging 1000 piece reel Sample Test Board 8 Recommended Configuration 1. Reference Application Note M513 for reel size information. Absolute Maximum Ratings 2 Parameter Input Power Voltage Operating Temperature Storage Temperature Absolute Maximum +34 dBm +7 V -40C to +85C -65C to +125C 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 Electrical Specifications: TA = 25 C, Z0 = 50 , Vs = +5 V, Vc = 0 V / 5 V Parameter Insertion Loss (reference state) VSWR Rev. V7 Conditions -- Any State Frequency 0.5 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz 0.5 - 2.5 GHz 0.5 - 0.8 GHz 0.8 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz 0.5 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz 0.5 - 2.5 GHz 0.5 - 2.5 GHz 0.5 - 2.5 GHz 0.5 - 2.5 GHz 0.5 - 2.5 GHz -- -- -- -- -- Units dB dB dB Ratio Min. -- -- -- -- Typ. 1.9 2.2 2.5 1.6:1 Max. 2.2 2.5 2.8 1.9:1 Accuracy Any State (0.3 + 4% atten setting) (0.3 + 3% atten setting) (0.3 + 6% atten setting) (0.3 + 8% atten setting) dB dB dB dB dBm dBm dBm dBm S S mV A A 0.3 0.2 0.1 14.3 19 22 34 43 -- -- -- -- -- -- -- -- 15.5 25 30 36 46 2 2 62 -- -- 0.8 0.9 1.0 -- -- -- -- -- -- -- -- 40 40 Step Change Attenuation Range 1 dB Compression Input Power Any State -- +3 V +5 V Two tones, Pin < +5 dBm/tone +3 V +5 V 10/90% or 90/10% RF 50% CNTL to 90/10% RF In Band +3 V +5 V IP3 Trise, Tfall Ton, Toff Transients Control Current Truth Table 2 Control Inputs VC5 1 0 1 1 1 1 VC4 1 1 0 1 1 1 VC3 1 1 1 0 1 1 VC2 1 1 1 1 0 1 VC1 1 1 1 1 1 0 Attenuation (dB) Reference 0.5 dB 1 dB 2 dB 4 dB 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 Typical Performance Curves Insertion Loss 5 Rev. V7 Attenuation at Major Bits 20 4 +25C -40C +85C 15 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB 3 10 2 1 5 0 0 500 1000 1500 2000 2500 3000 0 0 500 1000 1500 2000 2500 3000 Frequency (MHz) Frequency (MHz) Input Return Loss 0 Output Return Loss 0 -10 -10 -20 -20 -30 -40 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB -30 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB -40 -50 0 500 1000 1500 2000 2500 3000 -50 0 500 1000 1500 2000 2500 3000 Frequency (MHz) Frequency (MHz) Attenuation Accuracy 2 Attenuation Accuracy vs. Setting 0.5 0 0.0 -2 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB -0.5 -4 -1.0 250 MHz 400 MHz 900 MHz 1900 MHz 2200 MHz 2500 MHz -6 -1.5 -8 -2.0 -10 0 500 1000 1500 2000 2500 3000 -2.5 0 4 8 12 16 Frequency (MHz) 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 Typical Performance Curves Step size (low frequency) 1.0 250 MHz 400 MHz 900 MHz Rev. V7 Step size (high frequency) 1.0 1900 MHz 2200 MHz 2500 MHz 0.8 0.8 0.6 0.6 0.4 0.4 0.2 0.2 0.0 0 4 8 12 16 0.0 0 4 8 12 16 Attenuation Setting (dB) Attenuation Setting (dB) IIP3, +5 V, at 0 dB Attenuation Setting 55 +25C -40C +85C IIP3, +3 V, at 0 dB Attenuation Setting 55 50 50 +25C -40C +85C 45 45 40 40 35 35 30 500 1000 1500 2000 2500 30 500 1000 1500 2000 2500 Frequency (MHz) Frequency (MHz) IIP3, +5 V, vs. Attenuation Setting 55 Sample Board Loss 0.5 +25C -40C +85C 50 0.4 45 0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB 0.3 40 0.2 35 0.1 30 500 0.0 1000 1500 2000 2500 0 500 1000 1500 2000 2500 Frequency (MHz) 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 QSOP-16 (SSOP-16) Rev. V7 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. |
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