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NXP Semiconductors - Class-D audio amplifer

Numéro de référence TDA8932
Description Class-D audio amplifer
Fabricant NXP Semiconductors 
Logo NXP Semiconductors 





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TDA8932 fiche technique
TDA8932
Class-D audio amplifier
Rev. 02 — 12 December 2006
Preliminary data sheet
1. General description
The TDA8932 is a high efficiency class-D amplifier with low power dissipation.
The typical output power is 2 × 15 W in stereo half-bridge application (RL = 4 ) or
1 × 30 W typical in full-bridge application (RL = 8 ). Due to the low power dissipation the
device can be used without any external heat sink when playing music. If proper cooling
via the printed-circuit board is implemented, a continuous output power of 2 × 15 W is
feasible. Due to the implementation of thermal foldback, even for high supply voltages
and/or lower load impedances, the device remains operating with considerable music
output power without the need for an external heat sink.
The device has two full-differential inputs driving two independent outputs. It can be used
as mono full-bridge configuration (BTL) or as stereo half-bridge configuration (SE).
2. Features
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I Operating voltage from 10 V to 36 V asymmetrical or ±5 V to ±18 V symmetrical
I Mono-bridged tied load (full-bridge) or stereo single-ended (half-bridge) application
I Application without heatsink using thermally enhanced small outline package
I High efficiency and low-power dissipation
I Thermally protected and thermal foldback
I Current limiting to avoid audio holes
I Full short-circuit proof across load and to supply lines (using advanced current
protection)
I Switchable internal or external oscillator (master-slave setting)
I No pop noise
I Full-differential inputs
3. Applications
I Flat panel television sets
I Flat panel monitor sets
I Multimedia systems
I Wireless speakers
I Mini and micro systems
I Home sound sets

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