DATA SHORT
ISL1557 FN7522
Rev 2.00
February 26, 2008 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 25пЃ—
load.
The ISL1557 is available in the thermally-enhanced
16 Ld QFN and 10 Ld HMSOP package and is specified for
operation over the full -40В°C to +85В°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 20VP-P differential output drive into 21пЃ— -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 ISL1557IUEZ 4.5V to 12V …