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| RoHS Compliant Digital Attenuator, 1-Bit, 15 dB DC - 2.0 GHz Features * * * * * * * * * 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 MAADSS0008 V1 Functional Schematic 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. 1 2 3 Function RF Input Port Ground RF Output Port Pin No. 4 5 Function V1 V2 Ordering Information 1 Part Number MAADSS0008TR MAADSS0008TR-3000 MAADSS0008SMB Absolute Maximum Ratings 2,3 Package 1000 piece reel 3000 piece reel Sample Board Parameter Input Power Control Voltage Operating Temperature Storage Temperature Absolute Maximum +21 dBm VC 8V -40C to +85C -65C to +150C 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, 1-Bit, 15 dB DC - 2.0 GHz Electrical Specifications4: TA = 25C, VC = +2.5 Volts, Z0 = 50 Parameter Insertion Loss (Reference State) Attenuation VSWR Input IP3 MAADSS0008 V1 Test Conditions 1.0 GHz 2.0 GHz 1.0 GHz 2.0 GHz 1.0 GHz 2.0 GHz 1.0 GHz Insertion Loss State Attenuation State 1.0 GHz Insertion Loss State Attenuation State -- 10% to 90% RF, 90% to 10% RF 50% Control to 90% RF, 50% Control to 10% RF In-band Units dB dB dB dB Ratio Ratio dBm dBm dBm dBm A nS nS mV Min -- -- 14.6 14.4 -- -- 40 40 24 20 -- -- -- -- Typ 0.3 0.4 15.1 14.9 1.2:1 1.3:1 50 50 26 23 -- 29 50 10 Max 0.4 0.5 15.6 15.4 -- -- -- -- -- -- 10 -- -- -- P1dB Control Current Trise, Tfall Ton, Toff Transients 4. 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 4 1 2 3 Reference Application Note M538 for lead-free solder reflow recommendations. 5,6 39 pF 39 pF 39 pF Truth Table Mode (Control) Positive 5 Negative 6 V1 V2 Attenuation 15 dB Reference State Reference State 15 dB 0 0.2V +2.5V to +5V +2.5V to +5V 0 0.2V 0 0.2V -2.5V to -5V -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 Typical Performance Curves Insertion Loss with Negative Control +25C 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 +85C -40C MAADSS0008 V1 Insertion Loss with Positive Control +25C 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 +85C -40C Insertion Loss (dB) Insertion Loss (dB) Frequency (GHz) Frequency (GHz) Attenuation with Negative Control +25C 17 16 +85C -40C Attenuation with Positive Control +25C 17 16 +85C -40C Attenuation (dB) Attenuation (dB) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 15 14 13 12 15 14 13 12 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) VSWR, 0 and 15 dB States with Negative Control at +25C 0dB 2.0 1.8 1.6 1.4 1.2 1.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 15dB VSWR, 0 and 15 dB States with Positive Control at +25C 0dB 2.0 1.8 1.6 1.4 1.2 1.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 15dB VSWR VSWR Frequency (GHz) 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. * 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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