RoHS Compliant Digital Attenuator, 1-Bit, 15 dB DC - 2.0 GHz Features * * * * * * * * * MAADSS0008 V1 Functional Schematic Single 15-dB Step Low Loss, 0.3 dB Typical @ 900 MHz 2.5 to 5.0 Volt Operation Tape and Reel Packaging Available Lead-Free SOT-25 Package 100% Matte Tin Plating over Copper Halogen-Free "Green" Mold Compound 260C Reflow Compatible RoHS* Compliant Version of AT-267 5 4 Description M/A-COM's MAADSS0008 is a 1-bit, 15-dB step GaAs MMIC digital attenuator in a lead-free SOT-25, 5 lead surface mount plastic package. The MAADSS0008 is ideally suited for use where high accuracy, very low power consumption and low intermodulation products are required. Typical applications include wireless handsets, base stations, wireless LAN equipment, GPS receivers and any RF applications with automatic gain/level control circuits. The MAADSS0008 is fabricated as a monolithic GaAs integrated circuit using a mature PHEMT process. The process features full chip passivation for performance and reliability. 1 2 3 Pin Configuration Pin No. Function Pin No. Function 1 RF Input Port 4 V1 2 Ground 5 V2 3 RF Output Port Absolute Maximum Ratings 2,3 Ordering Information 1 Part Number Package Parameter Absolute Maximum MAADSS0008TR 1000 piece reel Input Power +21 dBm MAADSS0008TR-3000 3000 piece reel Control Voltage VC 8V MAADSS0008SMB Sample Board 1. Reference Application Note M513 for reel size information. Operating Temperature -40C to +85C Storage Temperature -65C to +150C 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, 1-Bit, 15 dB DC - 2.0 GHz MAADSS0008 V1 Electrical Specifications4: TA = 25C, VC = +2.5 Volts, Z0 = 50 4. Parameter Test Conditions Units Min Typ Max Insertion Loss (Reference State) 1.0 GHz 2.0 GHz dB dB -- -- 0.3 0.4 0.4 0.5 Attenuation 1.0 GHz 2.0 GHz dB dB 14.6 14.4 15.1 14.9 15.6 15.4 VSWR 1.0 GHz 2.0 GHz Ratio Ratio -- -- 1.2:1 1.3:1 -- -- Input IP3 1.0 GHz Insertion Loss State Attenuation State dBm dBm 40 40 50 50 -- -- P1dB 1.0 GHz Insertion Loss State Attenuation State dBm dBm 24 20 26 23 -- -- Control Current -- A -- -- 10 Trise, Tfall 10% to 90% RF, 90% to 10% RF nS -- 29 -- Ton, Toff 50% Control to 90% RF, 50% Control to 10% RF nS -- 50 -- Transients In-band mV -- 10 -- For positive voltage control, external DC blocking capacitors are required on all RF ports (pins 1, 2 and 3). Lead-Free SOT-25 Positive Control Voltage Schematic 5 1 Reference Application Note M538 for lead-free solder reflow recommendations. Truth Table Mode (Control) 39 pF 4 2 39 pF 3 39 pF 5,6 V1 V2 Attenuation Positive 5 0 0.2V +2.5V to +5V +2.5V to +5V 0 0.2V 15 dB Reference State Negative 6 0 0.2V -2.5V to -5V Reference State 15 dB -2.5V to -5V 0 0.2V 5. External DC blocking capacitors are required as noted. 6. If negative control is used, DC blocking capacitors are not required on RF ports and ground. 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, 1-Bit, 15 dB DC - 2.0 GHz MAADSS0008 V1 Typical Performance Curves Insertion Loss with Negative Control +85C -40C +25C 1.0 1.0 0.8 0.8 Insertion Loss (dB) Insertion Loss (dB) +25C Insertion Loss with Positive Control 0.6 0.4 0.2 0.0 0.6 0.4 0.2 0.5 1.0 1.5 2.0 2.5 0.0 3.0 0.5 1.0 2.0 2.5 3.0 Attenuation with Positive Control Attenuation with Negative Control +25C 1.5 Frequency (GHz) Frequency (GHz) +85C -40C +25C 17 17 16 16 Attenuation (dB) Attenuation (dB) -40C 0.0 0.0 15 14 +85C -40C 15 14 13 13 12 12 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 Frequency (GHz) 0dB 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) VSWR, 0 and 15 dB States with Negative Control at +25C VSWR, 0 and 15 dB States with Positive Control at +25C 0dB 15dB 2.0 2.0 1.8 1.8 1.6 1.6 VSWR VSWR +85C 1.4 15dB 1.4 1.2 1.2 1.0 1.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) 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. 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) * 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.