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AD8019ARU-EVAL Fiches technique(PDF) 1 Page - Analog Devices

No de pièce AD8019ARU-EVAL
Description  DSL Line Driver with Power-Down
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD8019ARU-EVAL Fiches technique(HTML) 1 Page - Analog Devices

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Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
a
AD8019
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001
DSL Line Driver
with Power-Down
PIN CONFIGURATIONS
8
7
6
5
1
2
3
4
AD8019AR
–IN1
OUT1
OUT2
+IN1
–VS
+VS
–IN2
+IN2
14
13
12
11
10
9
8
1
2
3
4
5
6
7
AD8019ARU
NC = NO CONNECT
DGND
NC
PWDN
NC
NC
NC
OUT1
–IN1
+IN1
–VS
OUT2
+VS
–IN2
+IN2
FEATURES
Low Distortion, High Output Current Amplifiers
Operate from 12 V to
12 V Power Supplies,
Ideal for High-Performance ADSL CPE, and xDSL
Modems
Low Power Operation
9 mA/Amp (Typ) Supply Current
Digital (1-Bit) Power-Down
Voltage Feedback Amplifiers
Low Distortion
Out-of-Band SFDR –80 dBc @ 100 kHz into 100
Line
High Speed
175 MHz Bandwidth (–3 dB), G = +1
400 V/ s Slew Rate
High Dynamic Range
VOUT to within 1.2 V of Power Supply
APPLICATIONS
ADSL, VDSL, HDSL, and Proprietary xDSL USB, PCI,
PCMCIA Modems, and Customer Premise Equipment
(CPE)
PRODUCT DESCRIPTION
The AD8019 is a low cost xDSL line driver optimized to drive a
minimum of 13 dBm into a 100
Ω load while delivering outstand-
ing 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 sup-
ply 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 attenu-
ation 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
Ω line with
50
Ω back termination.
The AD8019 comes in thermally enhanced 8-lead SOIC and
14-lead TSSOP packages. The 8-lead SOIC is pin-compatible
with the AD8017 12 V line driver.
FREQUENCY – kHz
132.5
137.5
142.5
–80dBc
Figure 1. Out-of-Band SFDR; VS =
±12 V; 13 dBm Output
Power into 200
Ω, Upstream
8-Lead SOIC
(R-8)
14-Lead TSSOP
(RU-14)


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