TDA8926 datasheet(8/32 Pages) PHILIPS

8 / 32 page

2002 Oct 10

Philips Semiconductors

Preliminary speciﬁcation

Power stage 2

× 50 W class-D audio

ampliﬁer

TDA8926

8.3

BTL operation

BTL operation can be achieved by driving the audio input

channels of the controller in the opposite phase and by

connecting the loudspeaker with a BTL output filter

between the two outputs (pins OUT1 and OUT2) of the

power stage (see Fig.4).

In this way the system operates as a mono BTL amplifier

and with the same loudspeaker impedance a four times

higher output power can be obtained.

For more information see Chapter 15.

MGU385

handbook, full pagewidth

CONTROL

AND

HANDSHAKE

DRIVER

HIGH

TDA8926J

TEMPERATURE SENSOR

AND

CURRENT PROTECTION

DRIVER

LOW

temp

current

VSS1

VSS1 VSS2

VDD2

810

VDD2 VDD1

CONTROL

AND

HANDSHAKE

DRIVER

HIGH

DRIVER

LOW

EN1

DIAG

REL1

SW1

SW2

REL2

POWERUP

EN2

BOOT1

OUT1

STAB

OUT2

BOOT2

SGND

(0 V)

Fig.4 Mono BTL application.

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