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STV8257DT Datasheet(PDF) 10 Page - STMicroelectronics |
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STV8257DT Datasheet(HTML) 10 Page - STMicroelectronics |
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10 / 149 page  General Description STV82x7 10/149 — External audio input interface using 3 x I²S (for decoded streams such as Dolby ® Digital and/or standard stereo streams) 1.1.4 Electrical Features Multi Power Supply: 1.8 V, 3.3 V and 8 V. Power Consumption: ● lower than 1 W in Functional mode (full features) ● 200 mW in Loop-through mode corresponding to Switch-off of all digital blocks 1.2 Typical Applications The STV82x7 is specified to enable flexible, analog and digital TV chassis design (refer to Figure 2, Figure 3, Figure 4 and Figure 5). The main considerations are: ● all necessary connections between devices can be provided through the TV set, ● pseudo stand-by mode used to copy to VCR or the DVD sources when the TV set is OFF, ● possible application compatibility with STV82x6 (TQFP80 package) TV design, ● pin-to-pin compatibility with STV82x8 (TQFP80 package) TV design. The STV82x7 is used to process a single audio source (analog or digital). However, it is possible to process two audio sources simultaneously using an STV82x7 interconnection (two chips can be easily connected). In the case of a single audio source, it is possible to hear and record in the same time: the same audio stream can be simultaneously output on headphone, loudspeakers, S/PDIF and the SCART connectors. Note: Headphone and loudspeakers can be used simultaneously for dual-language purposes or for different sound settings (e.g. volume). In this case, certain restrictions occur (see Section 4.2: Audio Processing). For more connections, the SCART-to-SCART path can be used. The use of these full analog paths implies that the sound is not digitally processed. |
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