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| RoHS Compliant Digital Attenuator, 5-Bit, 31 dB 400 - 2500 MHz Features * * * * * * * * 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 260C Reflow Compatible RoHS* Compliant Version of MAATSS0002 MAADSS0010 V2 Functional Schematic 16 dB 8 dB 4 dB 2 dB Description 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. 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. 1 dB Pin Configuration Pin No. 1 2 3 4 5 6 7 8 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 Information1 Part Number MAADSS0010 MAADSS0010TR MAADSS0010SMB Absolute Maximum Ratings 2,3 Parameter Package Bulk Packaging 1000 piece reel Sample Test Board Input Power Voltage Operating Temperature Storage Temperature Absolute Maximum +34 dBm +7 V -40C to +85C -65C to +125C 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 Electrical Specifications: TA = 25C, Z0 = 50 , Vs = +5 V, Vc = 0 V / 5 V Parameter Insertion Loss (reference state) MAADSS0010 V2 Conditions 0.8 - 1.5 GHz 1.5 - 2.0 GHz 2.0 - 2.5 GHz 0.8 - 1.5 GHz 1.5 - 2.0 GHz 2.0 - 2.5 GHz 0.8 - 1.5 GHz 1.5 - 2.0 GHz 2.0 - 2.5 GHz 0.8 - 2.5 GHz 0.8 - 2.5 GHz 10% to 90% RF, 90% to 10% RF 50% Control to 10% / 90% RF In Band +3V, 0.8 - 2.5 GHz +5V, 0.8 - 2.5 GHz Two tones, Pin < +5 dBm/tone +3 V, 0.8 - 2.5 GHz +5 V, 0.8 - 2.5 GHz Vc Vs Units dB dB dB Min. -- -- -- Typ. 1.8 2.2 2.7 Max. 1.9 2.3 2.9 Accuracy (0.3 dB + 4% of Attenuation) (0.3 dB + 3% of Attenuation) (0.4 dB + 3% of Attenuation) dB dB dB dB ratio S S mV dBm dBm dBm dBm A A 0.4 0.4 0.4 -- -- -- -- -- 15 18 34 43 -- -- 1.0 1.0 1.0 31 -- 2 2 120 21 27 -- -- -- -- 1.4 1.6 1.8 -- 2.0:1 -- -- -- -- -- -- -- 40 200 Step Change Attenuation Range VSWR Trise, Tfall Ton, Toff Transients P1dB IP3 Control Current Truth Table 4 Control Inputs VC5 1 0 1 1 1 1 4. Operating Instructions VC2 1 1 1 1 0 1 VC4 1 1 0 1 1 1 VC3 1 1 1 0 1 1 VC1 1 1 1 1 1 0 Attenuation (dB) Reference 1 dB 2 dB 4 dB 8 dB 16 dB 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. 0 = 0.0 V 0.2 V 1 = Vs = 5.0 V 0.2 V 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 Typical Performance Curves Insertion Loss 5 +25C -40C +85C MAADSS0010 V2 Attenuation at Major Bits 35 30 25 1 dB 2 dB 4 dB 8 dB 16 dB 31 dB 4 3 20 15 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 1 dB 2 dB 4 dB 8 dB 16 dB 31 dB -30 -40 -40 1 dB 2 dB 4 dB 8 dB 16 dB 31 dB -50 0 500 1000 1500 2000 2500 3000 -50 0 500 1000 1500 2000 2500 3000 Frequency (MHz) Frequency (MHz) Attenuation Accuracy 5 Attenuation Accuracy vs. Setting 2 1 0 0 -5 1 dB 2 dB 4 dB 8 dB 16 dB 31 dB -1 -2 -3 -4 250 MHz 400 MHz 900 MHz 1900 MHz 2200 MHz 2500 MHz -10 -15 -5 -20 0 500 1000 1500 2000 2500 3000 -6 0 4 8 12 16 20 24 28 32 Frequency (MHz) 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 Typical Performance Curves Step Size (low frequency) 2.0 MAADSS0010 V2 Step Size (high frequency) 2.0 1.5 250 MHz 400 MHz 900 MHz 1.5 1.0 1.0 0.5 0.5 1900 MHz 2200 MHz 2500 MHz 0.0 0 4 8 12 16 20 24 28 32 0.0 0 4 8 12 16 20 24 28 32 Attenuation Setting (dB) Attenuation Setting (dB) IIP3 at 3 V 55 IIP3 at 5 V 55 50 +25C -40C +85C 50 45 45 40 40 35 35 +25C -40C +85C 30 0 500 1000 1500 2000 2500 30 0 500 1000 1500 2000 2500 Frequency (MHz) Frequency (MHz) Sample Board Loss 0.5 +25C -40C +85C 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 Lead-Free QSOP-16 (SSOP-16) MAADSS0010 V2 Reference Application Note M538 for lead-free solder reflow recommendations. Recommended Configuration 10 K 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. |
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