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LE87557

xDSL Differential Line Driver

Status: In Production

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Overview
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Development Environment
RoHS Information
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Device Overview

Summary

The Le87557 device is a single channel differential amplifier designed to drive full rate VDSL2, ADSL2+, and PLC high-power signals. The Le87557 device contains a pair of wide-band amplifiers designed with Microchip’s HV15 bipolar SOI process for high-power output with low power consumption. Line driver gain is set externally to the device. The device can be powered from a single high-voltage supply or from dual supplies. The device can be programmed to one of three preset bias levels to optimize power and performance. In addition, the line driver features a power down state, which forces low-power and high-impedance mode for receive transmissions or for idle operations. The control pins respond to input levels that can be generated with a standard GPIO, but are tolerant of higher voltage logic levels. The Le87557device is available in a 16-pin (4 mm x 4 mm) QFN package with an exposed pad for enhanced thermal conductivity.

Additional Features
  • High-power differential output
  • Delivers signal strengths up to 21 dBm
  • Operates up to 12 V from a single supply or up to ±6 V from dual power supplies
  • Drive capability up to 750 mA from a single 12 V supply
  • User settable gain and bandwidth
  • Bandwidth up to 300 MHz
  • Class AB operation
  • Four operational states, low power operation
  • Thermal shutdown circuitry
  • Miniature 4 mm x 4 mm thermally enhanced package
  • RoHS compliant
  • Pin-compatible with industry standard line drivers
Parametrics
Name
Value
Application
VDSL2 35b
Series
DSL CPE
Loop Length
Short
Signal Power (dBm)
14.5
Number of Ports
1

Documents

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Data Sheets

  
321KB

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
LE87557NQC
0.046600
0.734694
16
VQFN
4x4x1mm
Matte Tin
e3
LE87557NQCT
0.046600
0.234000
16
VQFN
4x4x1mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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