STMicroelectronics 10 W + 10 W class-D audio amplifier demonstration board based on the TDA7491P STEVAL-CCA028V1 STEVAL-CCA028V1 Fiche De Données

   

   

   

For further information contact your local STMicroelectronics sales office.

October 2011

Doc ID 022324 Rev 1

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10 W + 10 W class-D audio amplifier demonstration board

based on the TDA7491P

■

10 W +10 W continuous output power at THD 
= 10%, R

L

 = 6 

Ω, V

CC 

= 11 V

■

9.5 W + 9.5 W continuous output power at THD 
= 10%, R

L

 = 8 

Ω,  V

CC

 = 12 V

■

Wide-range  single-supply operation (5-18 V)

■

High efficiency (

η

 

= 90 %)

■

Four selectable, fixed gain settings 
(20 dB, 26 dB, 30 dB and 32 dB)

■

Differential inputs to minimize common-mode 
noise

■

Filterless operation

■

Standby and mute features

■

Short-circuit and thermal overload protections

■

Externally synchronizable

■

RoHS compliant

The STEVAL-CCA028V1 demonstration board is 
designed  for the TDA7491P high-power dual BTL 
class-D audio amplifier.

Thanks to its high efficiency, the device 
assembled in the PSSO36 (slug-down) package 
is capable of dissipating heat without any 
heatsink.

Jumpers on the board allow configuring the 
amplifier in order to verify all the features as 
single-ended or differential inputs, fixed gain 
settings.

Microswitches are also provided to enable the 
standby and mute functions.