TDA7476

16/19

s

To use the TDA7476 with a car-radio system which has less than five audio channel and less than two

auxiliary loads, it is necessary to take some cares:

- each pin CH± not used has to be fixed to 5V

- each pin AUX1IN, AUX1OUT, AUXIN2, AUX2OUT not used has to be fixed to a voltage equal or greater than 5V

The 5V voltage reference available on the chip (pin 10) is very useful to fix both CH± and AUX pins to

5V.

APPLICATION EXAMPLES WITH ST AUDIO POWER ICs

Figure 5. Quad Bridge Amplifiers

Figure 6. TDA7451

TDA7384, TDA7385, TDA7386, TDA7454

+-

-+

+-

-+

CH1+

CH2+

CH3+

CH4+

CH5+

CH5-

CH4-

CH3-

CH2-

CH1-

TDA7476

D97AU578A

R

TDA7451

+-

-+

+-

-+

CH1+

CH2+

CH3+

CH4+

CH5+

CH5-

CH4-

CH3-

CH2-

CH1-

TDA7476

D97AU577A

R