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TDA8932BT/N2,118 其他数据使用手册 - NXP（恩智浦）
制造商:
NXP（恩智浦）
分类:
音频放大器
封装:
SOIC-32
描述:
音频功率放大器, 55 W, D, 1通道, ± 5V至 ± 18V, 10V至 36V, SOIC, 32 引脚
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TDA8932BT/N2,118数据手册
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AN10436
TDA8932B/33(B) Class-D audio amplifier
Rev. 01 — 12 December 2007 Application note
Document information
Info Content
Keywords Class-D amplifier, High efficiency, Switch mode amplifier, Flat TV.
Abstract This application note describes a stereo Switched Mode Amplifier (SMA)
for audio, based on either the TDA8932B or TDA8933(B) Class-D audio
amplifier device of NXP Semiconductors, which has been designed for
Flat TV applications.
The TDA8932B device is the high-power version that delivers an output
power of 2 × 10 W
RMS
to 2 × 25 W
RMS
in a Single Ended (SE)
configuration or 10 W
RMS
to 50 W
RMS
in a Bridge Tied Load (BTL)
configuration.
The TDA8933(B) device is the low-power version that delivers an output
power of 2 × 5 W
RMS
to 2 × 15 W
RMS
in a SE configuration or
10 W
RMS
to 30 W
RMS
in a BTL configuration.
This high efficiency SMA device has been designed to operate without a
heat sink and has the flexibility to operate from either an asymmetrical
supply or a symmetrical supply with a wide range (10 V to 36 V or
±5Vto±18 V).
The TDA8932B/33(B) device utilizes two advanced features, the Thermal
Foldback (TF) and the cycle-by-cycle current limiting to avoid audio holes
(interruptions) during normal operation.
In addition, the TDA8932B/33(B) utilizes integrated
Half Supply Voltage (HVP) buffers to simplify the design for an
asymmetrical supply in the SE configuration. Control logic is integrated for
a pop free transition between on/off. A SLEEP mode is incorporated to
comply with the power saving regulations.
An application designed around the TDA8932B/33(B) device is very robust
because of the internal protection features, such as a number of voltage
protections, OverCurrent Protection (OCP) and OverTemperature
Protection (OTP).
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