RoHS Compliant Digital Attenuator, 5-Bit, 15.5 dB 400 - 2500 MHz Features • • • • • • • • MAATSS0017 V2 Functional Schematic 5 Bits, 0.5 dB Steps Excellent Accuracy Single Positive Control (+3 V to +5 V) Lead-Free QSOP-16 (SSOP-16) Package 100% Matte Tin Plating over Copper Halogen-Free “Green” Mold Compound 260°C Reflow Compatible RoHS* Compliant Version of MAATSS0001 Description M/A-COM’s MAATSS0017 is a 0.5 dB step GaAs MMIC digital attenuator with 15.5 dB attenuation range in a lead-free QSOP-16 (SSOP-16) package. It requires external DC blocking capacitors on the RF ports, positive supply voltage and five individual bit control voltages. 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 The MAATSS0017 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 MAATSS0017 is fabricated using M/A-COM’s GaAs 1.0 micron process. The process features full chip passivation for increased performance and reliability. Recommended Configuration Ordering Information Part Number Package MAATSS0017 Bulk Packaging MAATSS0017TR 1000 piece reel MAATSS0017SMB Sample Test Board Note: Reference Application Note M513 for reel size information. * Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 1 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. RoHS Compliant Digital Attenuator, 5-Bit, 15.5 dB 400 - 2500 MHz MAATSS0017 V2 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 — Accuracy Any State 0.5 - 0.8 GHz 0.8 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz 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 — — 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 — — 36 46 Trise, Tfall 10/90% or 90/10% RF — µS — 2 — ± (0.3 + 4% atten setting) ± (0.3 + 3% atten setting) ± (0.3 + 6% atten setting) ± (0.3 + 8% atten setting) — — 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 Operating Instructions The MAATSS0017 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. Truth Table 1 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 The MAATSS0017 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 MAATSS0017 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 S-parameter data can be found. 2 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. 1. 0 = 0.0 V ± 0.2 V, 1 = Vs = 5.0 V ± 0.2 V • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. RoHS Compliant Digital Attenuator, 5-Bit, 15.5 dB 400 - 2500 MHz MAATSS0017 V2 Typical Performance Curves Attenuation at Major Bits Insertion Loss 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) Output Return Loss Input 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 3000 0 500 1000 Frequency (MHz) 1500 2000 2500 3000 Frequency (MHz) Attenuation Accuracy Attenuation Accuracy vs. Setting 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 2500 3000 Frequency (MHz) 3 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. 0 4 8 12 16 Attenuation Setting (dB) • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. RoHS Compliant Digital Attenuator, 5-Bit, 15.5 dB 400 - 2500 MHz MAATSS0017 V2 Typical Performance Curves Step size (high frequency) Step size (low 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 45 40 40 35 35 1000 1500 +25ºC -40ºC +85ºC 50 45 2000 2500 30 500 1000 Frequency (MHz) 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 55 40 1500 Frequency (MHz) IIP3, +5 V, vs. Attenuation Setting 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 2000 2500 Frequency (MHz) 4 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. 0 500 1000 1500 2000 2500 Frequency (MHz) • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. RoHS Compliant Digital Attenuator, 5-Bit, 15.5 dB 400 - 2500 MHz MAATSS0017 V2 Lead-Free QSOP-16 (SSOP-16)† † Reference Application Note M538 for lead-free solder reflow recommendations. Absolute Maximum Ratings 2,3 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. 3. M/A-COM does not recommend sustained operation near these survivability limits. 5 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information.