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STV82X8 Datasheet(PDF) 22 Page - STMicroelectronics |
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STV82X8 Datasheet(HTML) 22 Page - STMicroelectronics |
22 / 157 page Dedicated Digital Signal Processor (DSP) STV82x8 22/157 The main features depend on the path: ● FM Channel — DC Removal —Prescaling — De-emphasis (50 or 75 us) — Stereo Dematrix ● Input SCART Channel — DC Removal —Prescaling ● Input I²S Channel — I²S Prescaling ● Digital Audio Matrix — Audio Channel Multiplexer between the different sources (IF, I²S, SCART) towards all outputs (S/PDIF, LS, HP or SCART). ● Autostandard management — device configuration depending on the standard to be detected — freeze the device when a standard is detected — once a standard detected, check that there is no change in the detection status — set the correct action depending on any change in the detection status (mono backup or mute setup and new standard detection) ● SCART — Downmixing: LT / RT or L0 / R0 (see AC-3 specification) — Soft Mute 4.2 Audio Processing The following software is provided for main loudspeakers (L, R, C, LS, RS, SubW): ● Downmix ● Dolby ® Pro Logic II® Decoder (LT, RT →L, R, C, Ls, Rs, SubW) with Bass Management ● ST WideSurround, ST OmniSurround, SRS® WOW™ or SRS® TruSurround XT® (certified Virtual Dolby® Surround and Virtual Dolby® Digital) ● ST Dynamic Bass and ST Bass Enhancer ● Smart Volume Control (SVC) ● 5-band Equalizer or Bass-Treble ● Loudness ● Volume with independent channels (Smooth Volume Control) ● Master Volume Control ● Mute/soft-mute ● Balance ● Beeper ● Pink Noise Generator (used to position the loudspeakers) ● Programmable Delay for each loudspeaker ● Adjustable Delay for “lip sync” up to 120 ms (to compensate for audio/video latency) |
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