ISL1557A_15 Datasheet, PDF (1/2 Pages) Intersil Corporation – 12V xDSL Differential Line Driver with Enhanced Output Protection

ISL1557A
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Data Sheet
March 12, 2009
FN6568.1
12V xDSL Differential Line Driver with
Enhanced Output Protection
The ISL1557A is a dual operational amplifier designed for
VDSL2 and ADSL line driving in DMT based solutions. This
device features a high drive capability of 750mA while
consuming only 6mA of supply current per amplifier and
operating from a single 4.5V to 12V supply. The driver
achieves a typical distortion of -80dBc, at 150kHz into a 25
load. ISL1557A is design with stronger output clamps to
enhance protection against lightning transients.
The ISL1557A is available in the thermally-enhanced
16 Ld QFN and 10 Ld HMSOP package and is specified for
operation over the full -40°C to +85°C temperature range.
The ISL1557A has control pins C₀ and C₁ for controlling the
bias and enable/disable of the outputs. These controls allow
for lowering the power to fit the performance/power ratio for
the application.
The ISL1557A is ideal for ADSL2+, SDSL, HDSL2 and
VDSL line driving applications, including both 14.5dBm and
21dBm applications.
Features
• 21dBm output power capability
• Drives up to 750mA from a +12V supply
• 20V_P-P differential output drive into 21
• -80dBc typical driver output distortion at full output at
150kHz
• -75dBc typical driver output distortion at 4MHz
• -82dBc typical driver output distortion at 10MHz
• -79dBc typical driver output distortion at 17MHz
• Low quiescent current of 6mA per amplifier
• Supply range
- For ISL1557AIUEZ 4.5V to 12V
- For ISL1557AIRZ ±2.25V to ±6V, 4.5V to 12V
• 300MHz bandwidth
• Thermal shutdown
• Pb-free (RoHS compliant)
Applications
• VDSL2 line drivers
• ADSL2+ CPE line driving
• G.SHDSL, HDSL2 line drivers
Ordering Information
PART NUMBER
(Note)
PART
MARKING
TEMP. RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL1557AIRZ
155 7AIRZ
-40 to +85
16 Ld 4x4 QFN
MDP0046
ISL1557AIRZ-T7*
155 7AIRZ
-40 to +85
16 Ld 4x4 QFN (Tape and Reel) MDP0046
ISL1557AIUEZ
BBBGA
-40 to +85
10 Ld HMSOP
MDP0050
ISL1557AIUEZ-T7*
BBBGA
-40 to +85
10 Ld HMSOP (Tape and Reel) MDP0050
*Please refer to TB347 for details on reel specifications
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100%
matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations).
Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J
STD-020.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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