STV8207 datasheet(10/149 Pages) STMICROELECTRONICS

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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