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TDA7419

5.13 Output Selector and Mixing

The output-selector allows the front and rear speakers to connect to different sources. The setup of the

output selector is shown in Figure 24. A Mixing-stage is placed after the front speaker-attenuator and can

be set to mixing-mode. Having a full volume-attenuator for the mix-signal, the stage offers a wide flexibility

to adapt the mixing levels.

Figure 24. Output Selector

5.14 Audioprocessor Testing

In the test mode, which can be activated by setting bit D7 of the IIC subaddress byte and bit D0 of the

testing audioprocessor byte, several internal signals are available at the SE1R pin. In this mode, the input

resistance of 100kOhm is disconnected from the pin. Internal signals available for testing are listed in the

data-byte specification.

5.15 Test Circuit

Figure 25. Test Circuit

BassL+BassR

Subwoofer

output

Rear

Front

Second

Main

Mix_in

Attenuator

Attenuator

Attenuator

Subwoofer

filter

Attenuator