National Semiconductor | High-performance Analog


 LMC835   

Digital Controlled Graphic Equalizer [Discontinued]
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Features
  • No volume controls required
  • Three-wire interface
  • 14 bands, 25 steps each
  • ±12 dB or ±6 dB gain ranges
  • Low noise and distortion
  • TTL, CMOS logic compatible
  • Description

    The LMC835 is a monolithic, digitally-controlled graphic equalizer CMOS LSI for Hi-Fi audio. The LMC835 consists of a Logic section and a Signal Path section made of analog switches and thin-film silicon-chromium resistor networks. The LMC835 is used with external resonator circuits to make a stereo equalizer with seven bands, ±12 dB or ±6 dB gain range and 25 steps each. Only three digital inputs are needed to control the equalization. The LMC835 makes it easy to build a µP-controlled equalizer.

    The signal path is designed for very low noise and distortion, resulting in very high performance, compatible with PCM audio.


    Applications

  • Hi-Fi equalizer
  • Receiver
  • Car stereo
  • Musical instrument
  • Tape equalization
  • Mixer
  • Volume controller
  • Datasheets
    TitleSizeDateOther
    Language
    LMC835 Digital Controlled Graphic Equalizer474
    Kbytes
    5-Aug-95   


    Application Notes
    TitleSizeDateOther
    Language
    AN-435: Application Note 435183
    Kbytes
    4-Nov-95 

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LMC835N
    NONE
    NONE
    23 Oct 1999
    LMC835V
    NONE
    NONE
    23 Oct 1999

    [Information as of 9-Feb-2012]