RoHS Compliant Digital Attenuator, 5-Bit, 31 dB 400 - 2500 MHz Features • • • • • • • • MAADSS0010 V2 Functional Schematic 5 Bits, 1 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 MAATSS0002 16 dB 8 dB 4 dB 2 dB Description 1 dB M/A-COM’s MAADSS0010 is a 1 dB step GaAs MMIC digital attenuator with 31 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 MAADSS0010 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 MAADSS0010 is fabricated using M/A-COM’s GaAs 1.0 micron process. The process features full chip passivation for increased performance and reliability. Absolute Maximum Ratings 2,3 Ordering Information1 Parameter Absolute Maximum Input Power +34 dBm Voltage +7 V Part Number Package MAADSS0010 Bulk Packaging MAADSS0010TR 1000 piece reel Operating Temperature -40°C to +85°C Sample Test Board Storage Temperature -65°C to +125°C MAADSS0010SMB 1. Reference Application Note M513 for reel size information. 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. * 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, 31 dB 400 - 2500 MHz MAADSS0010 V2 Electrical Specifications: TA = 25°C, Z0 = 50 Ω, Vs = +5 V, Vc = 0 V / 5 V Parameter Conditions Units Min. Typ. Max. Insertion Loss (reference state) 0.8 - 1.5 GHz 1.5 - 2.0 GHz 2.0 - 2.5 GHz dB dB dB — — — 1.8 2.2 2.7 1.9 2.3 2.9 Accuracy 0.8 - 1.5 GHz 1.5 - 2.0 GHz 2.0 - 2.5 GHz Step Change 0.8 - 1.5 GHz 1.5 - 2.0 GHz 2.0 - 2.5 GHz dB dB dB 0.4 0.4 0.4 1.0 1.0 1.0 1.4 1.6 1.8 Attenuation Range 0.8 - 2.5 GHz dB — 31 — VSWR 0.8 - 2.5 GHz ratio — — 2.0:1 Trise, Tfall 10% to 90% RF, 90% to 10% RF µS — 2 — Ton, Toff 50% Control to 10% / 90% RF µS — 2 — Transients In Band mV — 120 — P1dB +3V, 0.8 - 2.5 GHz +5V, 0.8 - 2.5 GHz dBm dBm 15 18 21 27 — — IP3 Two tones, Pin < +5 dBm/tone +3 V, 0.8 - 2.5 GHz +5 V, 0.8 - 2.5 GHz dBm dBm 34 43 — — — — Vc Vs µA µA — — — — 40 200 Control Current Truth Table 4 Operating Instructions Control Inputs VC5 VC4 VC3 VC2 VC1 Attenuation (dB) 1 1 1 1 1 Reference 0 1 1 1 1 1 dB 1 0 1 1 1 2 dB 1 1 0 1 1 4 dB 1 1 1 0 1 8 dB 1 1 1 1 0 16 dB 4. ± (0.3 dB + 4% of Attenuation) ± (0.3 dB + 3% of Attenuation) ± (0.4 dB + 3% of Attenuation) 0 = 0.0 V ± 0.2 V 1 = Vs = 5.0 V ± 0.2 V The MAADSS0010 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 MAADSS0010 requires a parallel interface that allows the user to enter a 5 bit digital word. Each state increments the attenuation by 1.0 dB giving a total range of 31 dB. The MAADSS0010 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. • 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, 31 dB 400 - 2500 MHz MAADSS0010 V2 Typical Performance Curves Attenuation at Major Bits Insertion Loss 5 35 30 +25ºC -40ºC +85ºC 4 1 dB 2 dB 4 dB 8 dB 16 dB 31 dB 25 3 20 15 2 10 1 5 0 0 0 500 1000 1500 2000 2500 3000 0 500 1000 Frequency (MHz) 2000 2500 3000 2500 3000 Output Return Loss Input Return Loss 0 0 -10 -10 -20 -20 -30 -30 1 dB 2 dB 4 dB 8 dB 16 dB 31 dB -40 1500 Frequency (MHz) 1 dB 2 dB 4 dB 8 dB 16 dB 31 dB -40 -50 -50 0 500 1000 1500 2000 2500 3000 0 500 1000 Frequency (MHz) 1500 2000 Frequency (MHz) Attenuation Accuracy Attenuation Accuracy vs. Setting 2 5 1 0 0 -1 1 dB 2 dB 4 dB 8 dB 16 dB 31 dB -5 -10 -2 -3 250 MHz 400 MHz 900 MHz 1900 MHz 2200 MHz 2500 MHz -4 -15 -5 -20 -6 0 500 1000 1500 2000 2500 3000 Frequency (MHz) 0 4 8 12 16 20 24 28 32 Attenuation Setting (dB) 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. • 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, 31 dB 400 - 2500 MHz MAADSS0010 V2 Typical Performance Curves Step Size (low frequency) Step Size (high frequency) 2.0 2.0 250 MHz 400 MHz 900 MHz 1.5 1.5 1.0 1.0 0.5 0.5 1900 MHz 2200 MHz 2500 MHz 0.0 0.0 0 4 8 12 16 20 24 28 32 0 4 8 Attenuation Setting (dB) IIP3 at 3 V IIP3 at 5 V 55 55 +25ºC -40ºC +85ºC 50 12 16 20 24 28 32 Attenuation Setting (dB) 50 45 45 40 40 35 35 +25ºC -40ºC +85ºC 30 30 0 500 1000 1500 2000 2500 0 500 1000 1500 2000 2500 Frequency (MHz) Frequency (MHz) Sample Board Loss 0.5 +25ºC -40ºC +85ºC 0.4 0.3 0.2 0.1 0.0 0 500 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. • 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, 31 dB 400 - 2500 MHz MAADSS0010 V2 Lead-Free QSOP-16 (SSOP-16)† † Reference Application Note M538 for lead-free solder reflow recommendations. Recommended Configuration 10 KΩ 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.