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TDA8927TH Datasheet(PDF) 10 Page - NXP Semiconductors

Part # TDA8927TH
Description  Power stage 2 x 80 W class-D audio amplifier
PDF  36 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA8927TH Datasheet(HTML) 10 Page - NXP Semiconductors

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2001 Dec 11
10
Philips Semiconductors
Objective specification
Power stage 2
× 80 W class-D
audio amplifier
TDA8927
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 PWM output pins of the power stage
(see Fig.6).
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.
MGU386
handbook, full pagewidth
CONTROL
AND
HANDSHAKE
DRIVER
HIGH
TDA8927J
TEMPERATURE SENSOR
AND
CURRENT PROTECTION
DRIVER
LOW
temp
current
4
7
VSS1
VSS1 VSS2
VDD2
6
1
2
9
810
VDD2 VDD1
13
5
CONTROL
AND
HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
14
11
12
17
16
3
15
EN1
DIAG
REL1
SW1
SW2
REL2
POWERUP
EN2
BOOT1
OUT1
STAB
OUT2
BOOT2
SGND
(0 V)
Fig.6 Mono BTL application.



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