ISL1557 Datasheet, PDF (1/2 Pages) Intersil Corporation – xDSL Differential Line Driver

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Data Sheet
September 28, 2006
ISL1557
FN7522.0
xDSL Differential Line Driver
The ISL1557 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 25Ω
load.
The ISL1557 is available in the thermally-enhanced
16 Ld QFN package and is specified for operation over the
full -40°C to +85°C temperature range. The ISL1557 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 ISL1557 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 21Ω
• -80dBc typical driver output distortion at full output at
150kHz
• -75dBc typical driver output distortion at 4MHz
• -71dBc typical driver output distortion at 10MHz
• -75dBc typical driver output distortion at 17MHz
• Low quiescent current of 6mA per amplifier
• Supply range
- For ISL1557IUE 4.5V to 12V
- For ISL1557IR ±2.25V to ±6V, 4.5V to 12V
• 300MHz bandwidth
• Thermal shutdown
• Pb-free plus anneal available (RoHS compliant)
Applications
• VDSL2 line drivers
• Power line communications line drivers
• ADSL2+ CPE line driving
• G.SHDSL, HDSL2 line drivers
Ordering Information
PART NUMBER (Note) PART MARKING TAPE AND REEL TEMP. RANGE (°C)
PACKAGE (Pb-Free)
PKG. DWG. #
ISL1557IRZ
7IRZ
-
-40 to +85
16 Ld QFN (Pb-free)
MDP0046
ISL1557IRZ-T7
7IRZ
7”
-40 to +85
16 Ld QFN (Pb-free)
MDP0046
ISL1557IRZ-T13
7IRZ
13”
-40 to +85
16 Ld QFN (Pb-free)
MDP0046
ISL1557IUEZ
BBVAA
-
-40 to +85
10 Ld HMSOP (Pb-free) MDP0050
ISL1557IUEZ-T7
BBVAA
7”
-40 to +85
10 Ld HMSOP (Pb-free) MDP0050
ISL1557IUEZ-T13
BBVAA
13”
-40 to +85
10 Ld HMSOP (Pb-free) MDP0050
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which are 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.
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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