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Description:26.4V; 1.4-2.2W; DSL line driver with power-down
Manufacturer:Analog Devices
Oper. temp.:-40 to 85
Datasheet:PDF (782K).
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The AD8019 is a low cost xDSL line driver optimized to drive a minimum of 13 dBm into a 100 load while delivering outstanding distortion performance. The AD8019 is designed on a 24 V high-speed bipolar process enabling the use of 12 V power supplies or 12 V only. When operating from a single 12 V supply the highly efficient amplifier architecture can typically deliver 170 mA output current into low impedance loads through a 1:2 turns ratio transformer. Hybrid designs using 12 V supplies enable the use of a 1:1 turns ratio transformer, minimizing attenuation of the receive signal. The AD8019 typically draws 9 mA/ amplifier quiescent current. A 1-bit digital power down feature reduces the quiescent current to approximately 1.6 mA/amplifier. Figure 1 shows typical Out of Band SFDR performance under ADSL CPE (upstream) conditions. SFDR is measured while driving a 13 dBm ADSL DMT signal into a 100 line with 50 back termination.

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