MAADSS0008 Digital Attenuator, 1-Bit, 15 dB Rev. V2 DC - 2.0 GHz Features Functional Schematic Single 15-dB Step Low Loss, 0.3 dB Typical 900 MHz 2.5 to 5.0 Volt Operation 5 4 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 Description M/A-COMs 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 1 2 3 intermodulation products are required. Typical applications include wireless handsets, base stations, wireless LAN equipment, GPS receivers and any RF applications with automatic gain/level Pin Configuration control circuits. Pin No. Function Pin No. Function The MAADSS0008 is fabricated as a monolithic 1 RF1 4 V1 GaAs integrated circuit using a mature PHEMT 2 Ground 5 V2 process. The process features full chip passivation 3 RF2 for performance and reliability. 2,3 1 Absolute Maximum Ratings Ordering Information Part Number Package Parameter Absolute Maximum Input Power +21 dBm MAADSS0008TR 1000 piece reel Control Voltage V 8V C MAADSS0008TR-3000 3000 piece reel Operating Temperature -40C to +85C MAADSS0008SMB Sample Board Storage Temperature -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. 11 1 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: MAADSS0008 Digital Attenuator, 1-Bit, 15 dB Rev. V2 DC - 2.0 GHz 4 Electrical Specifications : T = 25C, V = +2.5 Volts, Z = 50 A C 0 Parameter Test Conditions Units Min Typ Max Insertion Loss 1.0 GHz dB 0.3 0.4 (Reference State) 2.0 GHz dB 0.4 0.5 1.0 GHz dB 14.6 15.1 15.6 Attenuation 2.0 GHz dB 14.4 14.9 15.4 1.0 GHz Ratio 1.2:1 VSWR 2.0 GHz Ratio 1.3:1 1.0 GHz dBm 40 50 Input IP Insertion Loss State 3 dBm 40 50 Attenuation State 1.0 GHz dBm 24 26 P Insertion Loss State 1dB dBm 20 23 Attenuation State Control Current A 10 Trise, Tfall 10% to 90% RF, 90% to 10% RF nS 29 50% Control to 90% RF, Ton, Toff nS 50 50% Control to 10% RF Transients In-band mV 10 4. For positive voltage control, external DC blocking capacitors are required on all RF ports (pins 1, 2 and 3). Positive Control Voltage Schematic Lead-Free SOT-25 5 4 1 2 3 Reference Application Note M538 for lead-free solder reflow 39 pF 39 pF 39 pF recommendations. 5,6 Truth Table Mode V1 V2 Attenuation (Control) 5 Positive 0 0.2V +2.5V to +5V 15 dB +2.5V to +5V 0 0.2V Reference State 6 Negative 0 0.2V -2.5V to -5V Reference State -2.5V to -5V 0 0.2V 15 dB 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. 22 2 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: