TDA7402 datasheet(22/59 Pages) STMICROELECTRONICS

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TDA7402

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1.13 Output Selector

The output-selector allows to connect the main- or the second-source to the Front-, Rear and Subwoofer speak-

er-attenuator, respectively. As an example of this programming the device is able to connect via software the

main-source to the back (rear) and the second-source to the front (see Figure 17). In addition to this stage allows

to setup different applications by IIC-Bus programming. In figure 18 to 20 three examples are given.

Figure 17. Output Selector

1.14 Subwoofer

Several different applications are possible with the Subwoofer-circuit:

1. Subwoofer-Filter OFF

a. Main-source stereo (AC-coupled)

b. Second-source stereo (DC-coupled)

c. Main-source mono-differential (DC-coupled)

d. Second-source mono-differential (DC-coupled)

2. Subwoofer-Filter ON

a. Main-source mono-differential (DC-coupled)

b. Second-source mono-differential (DC-coupled)

c. Center-Speaker-Mode (filtered mono signal at SWL, unfiltered mono signal at SWR)

In all applications the phase of the output-signal can be configured to be 0

° or 180° . In the Center-Speaker-

Mode only at the filtered output the phase is changed.

TDA7402 数据表(PDF) 22 Page - STMicroelectronics