EL1503A
®
Data Sheet
March 26, 2007
FN7039.2
High Power Differential Line Driver
Features
The EL1503A ADSL Line Driver contains two wideband
high-voltage drivers which are ideally suited for both ADSL
• High power ADSL driver
• 39.2V
• 42.4V
differential output drive into 22Ω
P-P
and HDSL2 applications. They can supply a 39.2V
signal
P-P
differential output drive into 65Ω
into a 22Ω load while exhibiting very low distortion. The
P-P
EL1503A also has a number of power saving features. The
nd rd
• Driver 2 /3 harmonics of
I
pin can be used to set the maximum supply current and
ADJ
the C and C pins can be used to digitally vary the supply
-66dBc/-72dBc at 2V into 100Ω differential
P-P
0
1
• Supply current of 12.5mA per amplifier
• Supply current control
current to one of four modes. These modes include full
power, low power, terminate only and power down.
The EL1503A uses current-feedback type amplifiers, which
achieve a high slew rate while consuming moderate power.
They retain their frequency response over a wide range of
externally set gains. The EL1503A operates on ±5V to ±12V
supplies and consumes only 12.5mA per amplifier.
• Power saving modes
• Standard surface-mount packages
• Ultra-small QFN package
• Pb-free plus anneal available (RoHS compliant)
The device is supplied in a thermally-enhanced 20 Ld SOIC
(0.300”) and the small footprint (4x5mm) 24 Ld QFN
packages. Center pins on each side of the 20 Ld and 16 Ld
packages are used as ground connections and heat
Applications
• ADSL line drivers
• HDSL2 line drivers
• Video distribution amplifiers
spreaders. The QFN package has the potential for a low θ
JA
(<40°C/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 -40°C to +85°C
temperature range.
Pinouts
EL1503A
(24 LD QFN)
TOP VIEW
EL1503A
[20 LD SOIC (0.300”)]
TOP VIEW
VIN-A
VOUTA
VS-
1
2
3
4
5
6
7
8
9
20 VIN-B
19 VOUTB
18 VS+
NC
NC
NC
1
2
3
4
5
6
7
19
18
A
B
- +
-
+
GND*
GND*
GND*
GND*
VIN+A
C1
17 GND*
16 GND*
15 GND*
14 GND*
13 VIN+B
12 IADJ
11 NC
NC
17
VS-
NC
VS+
NC
THERMAL
PAD
16
15
NC
NC
NC
NC
14
13
POWER
GND
GND
CONTROL
LOGIC
C0 10
*GND pins are heat spreaders
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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1
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