STV82X8 datasheet(21/157 Pages) STMICROELECTRONICS

部件名	STV82X8

功能描述	Digital Audio Decoder / Processor for BTSC Television/Video Recorders

PDF	157 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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21 / 157 page

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STV82x8

Dedicated Digital Signal Processor (DSP)

A dedicated Digital Signal Processor (DSP) takes charge of all audio processing features and the

low frequency signal processing features of the demodulator. The internal 24-bit architecture will

ensure a high quality signal treatment and an excellent dynamic.

4.1

Back-end Processing

The “back-end” processing corresponds to the low frequency signal processing (32 kHz or higher

frequencies) of the demodulator and other inputs (I²S, ADC).

Figure 11 shows a flowchart of the back-end processing tasks. However, the figure shows that the

processing is only a SINGLE SOURCE PROCESSING flow (no processing is possible with

“Demod + SCART” and I²S inputs simultaneously) and that the selection of a headphone output

restricts the loudspeakers configuration to 2.1 instead of 5.1.

Figure 11: Back-end Audio Processing

STV82X8 数据表(PDF) 21 Page - STMicroelectronics