Akai LCT42Z7TAP, Руководство по обслуживанию

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MT8206
PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE
BLOCK DIGRAM
Analog Switch
Analog switches are built in MT8206 to connect to 17 input signals and there is need to add external components to add
analog video multiplexes on board.
There are 9 high-speed differential input pairs for 3 sets of YPRPB/VGA input signals.
The 8 Composite/S signal input pins can be fully programmed to connect to any AV/SV inputs.
ADC/ Source Select
The video ADC sample analog input signals. After ADC, all signal processing is digital domain. The source select multiplex all
inputs from digital and analog video ports and route them into data path.
Audio Interface
Audio interface accept analog audio signal from Tuner, e.g. AF. It also includes preprocessing circuit to filter the noisy audio
signals. Audio decoder will decode the BTSC or NICAM, and output best sound with enhanced 3D surround post-processing.
Embedded 7.1 channel digital audio input (slave) and 2 channels (master) digital audio inputs.
Embedded 3 high performance audio DACs.
DSP
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