TDA7406 datasheet(26/64 Pages) STMICROELECTRONICS

tên linh kiện	TDA7406

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Description of the audioprocessor part

TDA7406

26/64

Figure 17.

AC/DC-coupling and MixIn Inputs

4.10

Speaker-Attenuator stage

Each of the four speakers and the subwoofer output has a separate volume control in the

range: +15... -79dB plus mute with a typical value of -90dB.

4.11

Output Mixer

A Mixing-stage is placed after each speaker gain/attenuator stage and can be set

independently to mixing-mode.

Having a full volume control for the Mix-signal in the range:+15... -79dB plus mute with a

typical value of -90dB, the stage offers a wide flexibility to adapt the mixing levels.

Figure 18.

Output Selector

4.12

Audioprocessor Testing

During the Test Mode, which can be activated by setting bit I2 of the subaddress byte and

D0 of the audioprocessor testing byte, several internal signals are available at the Navi pin.

During this mode the input resistance of 100k

Ω is disconnected from the pin. The internal

signals available are shown in the Data-byte specification.

TDA7406 bảng dữ liệu(PDF) 26 Page - STMicroelectronics