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LMH6678 Datasheet Low Power 2-Channel Central-Office xDSL Driver

Manufacturer: Texas Instruments

Overview: OBSOLETE LMH6678 www.ti.com SNOSA95B – DECEMBER 2003 – REVISED APRIL 2013 Low Power 2-Channel Central-Office xDSL Driver Check for Samples:.

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General Description

The LMH6678 is a low power 2-channel differential output driver utilizing dual current feedback op amps with a fixed gain of AV = +5.4.

The LMH6678 utilizes high integration with low power consumption to provide 580 mW at 19.8 dBm line output.

The LMH6678 can also be put into a listen mode to maintain the termination for receive signals with 100 mW/Ch power dissipation.

Key Features

  • 1.
  • 2 AVCC1 = AVCC2 = +12V, AVDD = DVDD = +3.3V, TA = 25°C, 2/3 Power Mode, Typical Values Unless Specified.
  • Low Power Consumption.
  • Line Power PLINE = 100 mW 580 mW/Ch.
  • No Signal 185 mW/Ch.
  • Listen Mode 100 mW/Ch.
  • Shutdown Mode 3 mW/Ch.
  • Power Supply.
  • Analog (AVCC1, AVCC2) +12V.
  • Digital (DVDD, AVDD) +3.3V.
  • Output Voltage Swing @ RL = 31Ω.
  • Single Ended 11.5 VPP.
  • Differential 23 VPP.
  • M.

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