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AD8398A Datasheet(PDF) 1 Page - Analog Devices

No. de pieza AD8398A
Descripción Electrónicos  Single Port VDSL2 Line Driver with Shutdown
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
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AD8398A Datasheet(HTML) 1 Page - Analog Devices

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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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