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LM2485

Part Number	LM2485
Manufacturer	National Semiconductor
Description	220V Triple Bias Clamp
Published	Mar 22, 2005
Detailed Description	LM2485 220V Triple Bias Clamp with G1 Blank Amplifier December 2004 LM2485 220V Triple Bias Clamp with G1 Blank Amplif...
Datasheet	LM2485 PDF File

Overview

LM2485 220V Triple Bias Clamp with G1 Blank Amplifier December 2004 LM2485 220V Triple Bias Clamp with G1 Blank Amplifier General Description The LM2485 is a triple channel clamp amplifier used to DC restore the AC coupled outputs of a DTV CRT driver and for cut-off adjustment.
The LM2485 also has an integrated blanking amplifier that can be used to drive the G1 grid of a CRT negative for vertical retrace blanking.
The blanking output has a selectable pulse amplitude of either 20VP-P or 40VP-P via the Pin 13 option.
The blanking input pulse can be generated from a vertical flyback pulse or by a microcontroller.
The LM2485 can operate with a VCC supply of up to 220V and a VBB supply of eith...

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