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CONFIDENTIAL – DO NOT COPY
Page 7-31
File No. SG-0198
3. Mode selection
In the L32 LCD TV TDA8946AJ has two functional modes, which can be selected by applying the
proper DC voltage to pin MODE.
1. Mute — In this mode the amplifier is DC-biased but not operational (no audio output).
This allows the input coupling capacitors to be charged to avoid pop-noise. The device is in mute
mode when 3.5 V < VMODE < (VCC − 1.5 V).
2. Operating — In this mode the amplifier is operating normally. The operating mode is activated at
VMODE<1.0V.
MT5351 Application :
MediaTek MT5351 is a DTV Backend Decoder SOC which support flexible transport demux , HD
MPEG-2 video decoder , JPEG decoder , MPEG1,2,MP3,AC3 audio decoder , HDTV encoder . The
MT5351 enables consumer electronics manufactures to build high quality , feature-rich DTV , STB or
other home entertainment audio/video device.World-Leading Technology : HW support worldwide
major broadcast network and CA standards , include ATSC , DVB , OpenCable , DirectTV ,
MHP.Rich Feature for high value product : To enrich the feature of DTV , the MT5351 support
1394-5C component to external DVHS . Dual display , PIP/POP and quad pictures provide user a
whole new viewing experience.Credible Audio/Video Quality : The MT5351 use advanced
motion-adaptive de-interlace algorithm to achieve the best movie/video playback , The embedded
4X over-sample video DAC could generate very fine display quality . Also , the audio 3D surround
and equalizer provide professional entertainment.