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LM4756TA

LM4756TA Description

Dual 7W Audio Power Amplifier w/Mute, Standby and Volume Control

LM4756TA Categories

Audio Power Amplifiers

LM4756TA Manufacturer

National Semiconductor

LM4756TA Datasheet (PDF)

LM4756TA Datasheet

LM4756TA Price & Availability


Check LM4756TA Price & Availability at Canics

LM4756TA Features

  • Quiet fade-in/out mute function
  • Stereo variable line-out pins
  • AC output short circuit protection
  • Thermal shutdown protection

LM4756TA Description

    The LM4756 is a stereo audio amplifier capable of delivering 7W/channel at 10% distortion into a 4 or 8 load. The power amp has an internally set gain of 30dB. A 0V-5V DC controlled volume block provides 80dB of attenuation from input to line-out. Line outputs are available after the volume control for signal routing.

    The amplifier has a smooth transition fade-in/out mute and a power conserving standby function which are controlled through TTL or CMOS logic. Both functions provide over 75dB of attenuation.

    The LM4756 maintains an excellent Signal-to-Noise ratio of greater than 70dB with a low noise floor less than 2mV. The IC also maintains above 50dB of channel separation.

    The LM4756 is available in a 15-lead non-isolated plastic package and is designed for use in TV applications requiring single supply operation.

    LM4756TA Parameters

    StatusFull production
    PackageTO 220
    Temperature Min (deg C)-40
    Temperature Max (deg C)85
    Pins15
    Pricing$1.40
    SNR (dB)70
    Channels (Channels)2
    Gain Bandwidth (MHz)2
    Slew Rate (Volts/usec)3
    PSRR (dB)50
    THD (%).40
    User Supply (Volt)22
    Supply Range+15 - +28V
    PowerAtFourOhms OnePercentTHD (Watt)6
    PowerAtEightOhms OnePercentTHD (Watt)4.90
    PowerAtFourOhms TenPercentTHD (Watt)7
    PowerAtEightOhms TenPercentTHD (Watt)7
    SNR ConditionsRs=25 Ohms Po=4.8W A-Weighted
    PSRR ConditionsVpin 13 AC=1Vrms, f=100Kz
    THD ConditionsPo=1W, RL=8Ohms
    Select parameters and click to see components with these parameters.

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    Keywords
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