Data brief
For further information contact your local STMicroelectronics sales office.
October 2011 Doc ID 022324 Rev 1 1/4
4
STEVAL-CCA028V1
10 W + 10 W class-D audio amplifier demonstration board
based on the TDA7491P
Features
■ 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
Description
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.
STEVAL-CCA028V1
www.st.com
