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HA12175 Description

HA12173 series are silicon monolithic bipolar IC providing Dolby noise reduction system , music sensor and PB equalizer system in one chip. Functions PB equalizer Dolby B/C-NR Music sensor × 2 channel × 2 channel × 1 channel.

HA12175 Key Features

  • 2 type of input selection (RADIO/TAPE) is available
  • Available to change music sensing level by external resistor
  • Available to change frequency response of music sensor
  • 4 type of PB-out level
  • Available to allow mon PCB designs with HA12163 series
  • Dolby is a trademark of Dolby Laboratories Licensing Corporation. A license from Dolby Laboratories Licensing Corporatio
  • 0.28 V Reference current input
  • DC voltage Equivalent circuit VCC Description Time constant pin for rectifier
  • Mode control input
  • DC voltage Equivalent circuit VCC/2