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AD8398A Datasheet(PDF) 1 Page - Analog Devices |
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AD8398A Datasheet(HTML) 1 Page - Analog Devices |
1 / 13 page Single Port VDSL2 Line Driver with Shutdown AD8398A Rev. D Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2008–2010 Analog Devices, Inc. All rights reserved. FEATURES Voltage feedback Wide output swing 18.4 V p-p differential, RLOAD, DIFF = 20 Ω from 12 V supply High output current Linear output current of 450 mA peak Low distortion −65 dBc for Profile 8b @ 20.4 dBm −55 dBc for Profile 17a @ 14.5 dBm High speed 85 MHz bandwidth (AV DIFF = 5) APPLICATIONS ADSL2+/VDSL2 CO/CPE line drivers PLC line drivers Consumer xDSL modems Twisted pair line drivers FUNCTIONAL BLOCK DIAGRAM NC = NO CONNECT 1 NC 2 −IN A 3 +IN A 4 GND 11 −IN B 12 NC 10 +IN B 9PD1 – + – + Figure 1. Thermally Enhanced, 4 mm × 4 mm, 16-Lead LFCSP_WQ TYPICAL APPLICATION DIAGRAM VMID* TIP RING AD8398A AD8398A 1/2 1/2 *VMID = VCC + VEE 2 Figure 2. Typical VDSL2 Application GENERAL DESCRIPTION The AD8398A comprises two high speed, voltage feedback operational amplifiers. When configured as a differential line driver, the AD8398A is an ideal choice for ADSL2+, VDSL2, and power line communications (PLC) applications. It has high output current, high bandwidth, and fast slew rate, combined with exceptional multitone power ratio (MTPR) and common- mode stability. The AD8398A is available in a thermally enhanced 4 mm × 4 mm, 16-lead LFCSP. The AD8398A incorporates power management functionality via two CMOS-compatible control pins, PD0 and PD1. These pins select one of four operating modes: full power, medium power, low power, or complete power-down. In the power-down mode, the quiescent current drops to 0.7 mA. The AD8398A operates in the industrial temperature range of −40°C to +85°C. |
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