TDA7476
16/19
■ 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
