GENERAL DESCRIPTION
The TDA9855 is a bipolar-integrated BTSC stereo/SAP decoder with hi-fi audio processor (I2C-bus controlled) for application in TV sets.
FEATURES
⢠Quasi alignment-free BTSC stereo decoder due to automatic adjustment of channel separation via I2C-bus
⢠High integration level with automatically tuned integrated filters
⢠Input level adjustment I2C-bus controlled
⢠Alignment-free SAP processing
⢠dbx noise reduction circuit
⢠I2C-bus transceiver.
Audio processor
⢠Selector for internal and external signals (line in)
⢠Automatic volume level control
⢠Subwoofer or surround output with separate volume control
⢠Volume control
⢠Special loudness characteristic automatically controlled in combination with volume setting
⢠Bass and treble control
⢠Audio signal zero-crossing detection between any volume step switching
⢠Mute control at audio signal zero-crossing.
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