Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a "controlled document". Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
2001 Elantec Semiconductor, Inc.
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General Description
The EL1503C ADSL Line Driver contains two wideband high-voltage
drivers which are ideally suited for both ADSL and HDSL2 applica-
tions. They can supply a 39.2V
P-P
signal into a 22
load while
exhibiting very low distortion. The EL1503C also has a number of
power saving features. The IADJ pin can be used to set the maximum
supply current and the C
0
and C
1
pins can be used to digitally vary the
supply current to one of four modes. These modes include full power,
low power, terminate only and power down.
The EL1503C uses current-feedback type amplifiers, which achieve a
high slew rate while consuming moderate power. They retain their fre-
quency response over a wide range of externally set gains. The
EL1503C operates on 5V to 12V supplies and consumes only
12.5mA per amplifier.
The device is supplied in a standard form-factor 20-pin SO (0.300"),
16-pin thermal SO (0.150"), and the small footprint (4x5mm) 24-pin
LPP packages. Center pins on each side of the 20-pin and 16-pin pack-
ages are used as ground connections and heat spreaders. The LPP
package has the potential for a low
JA
(<40C/W) and dissipates heat
by means of a thermal pad that is soldered onto the PCB. All package
options are specified for operation over the full -40C to +85C tem-
perature range.
Pin Configurations
Pin Configurations continues on Page 3
19
18
17
16
15
14
13
2
4
2
3
2
2
2
1
2
0
8
9
1
0
1
1
1
2
1
2
3
4
5
6
7
Thermal Pad
NC
NC
VS-
NC
NC
NC
GND
NC
NC
VS+
NC
NC
NC
GND
V
O
U
T
A
V
I
N
-
A
N
C
V
I
N
-
B
V
O
U
T
B
V
I
N
+
A
C
1
C
0
I
A
D
J
V
I
N
+
B
24-Pin LPP Top View
Features
High power ADSL driver
39.2V
P-P
differential output drive
into 22
42.4V
P-P
differential output drive
into 65
Driver 2
nd
/3
rd
harmonics of
-66dBc/-72dBc at 2V
P-P
into 100
differential
Supply current of 12.5mA per
amplifier
Supply current control
Power saving modes
Standard surface-mount packages
Ultra-small LPP package
Applications
ADSL line drivers
HDSL2 line drivers
Video distribution amplifiers
Ordering Information
Part No.
Package
Tape &
Reel
Outline #
EL1503CL
24-Pin LPP
-
MDP0046
EL1503CL-T7
24-Pin LPP
7"
MDP0046
EL1503CL-T13
24-Pin LPP
13"
MDP0046
EL1503CM
20-Pin SO (0.300")
-
MDP0027
EL1503CM-T13
20-Pin SO (0.300")
13"
MDP0027
EL1503CS
16-Pin SO (0.150")
-
MDP0027
EL1503CS-T7
16-Pin SO (0.150")
7"
MDP0027
EL1503CS-T13
16-Pin SO (0.150")
13"
MDP0027
EL1503C - Product Brief
High Power Differential Line Driver
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EL1503C - Product Brief
High Power Differential Line Driver
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General Disclaimer
Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the cir-
cuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described
herein and makes no representations that they are free from patent infringement.
WARNING - Life Support Policy
Elantec, Inc. products are not authorized for and should not be used
within Life Support Systems without the specific written consent of
Elantec, Inc. Life Support systems are equipment intended to sup-
port or sustain life and whose failure to perform when properly used
in accordance with instructions provided can be reasonably
expected to result in significant personal injury or death. Users con-
templating application of Elantec, Inc. Products in Life Support
Systems are requested to contact Elantec, Inc. factory headquarters
to establish suitable terms & conditions for these applications. Elan-
tec, Inc.'s warranty is limited to replacement of defective
components and does not cover injury to persons or property or
other consequential damages.
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Printed in U.S.A.
Elantec Semiconductor, Inc.
675 Trade Zone Blvd.
Milpitas, CA 95035
Telephone: (408) 945-1323
(888) ELANTEC
Fax:
(408) 945-9305
European Office: +44-118-977-6020
Japan Technical Center: +81-45-682-5820
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