Le87282
G.Fast Dual Channel Line Driver
The Le87282 is a dual channel differential amplifier designed to drive G.Fast transmission signals as well as VDSL2 and ADSL2+ signals
ith very low power dissipation. The Le87282 contains two pairs of wideband amplifiers designed with Microsemi’s HV15 Bipolar SOI
rocess for low power consumption.
The line driver gain is fixed internally. The amplifiers are powered from a single supply.
The device can be programmed to one-of-three preset Bias levels or to impedance controlled Disable or Standby states. The control pins
espond to input levels that can be generated with a standard tri-state GPIO.
Simplified Block Diagram
eatures & Benefit
• Supports high frequency G.Fast transmission
• Supports VDSL2 and ADSL2+ operation
• Very low power dissipation
◦ Class AB operation
• 5 programmable states
• No external gain resistors required
• Small footprint package
◦ 28-pin (4 mm x 5 mm) QFN
• RoHS compliant
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microsemi.com/
roducts/lin
-drivers/
-fast/le8728
