Manual De Usuario Philips Amplificador Estéreo Tda8950 [1/39 Páginas]

Philips amplificador estéreo TDA8950

1. General description

The TDA8950 is a high efﬁciency class-D audio power ampliﬁer. The typical output power

is 2 × 150 W with a speaker load impedance of 4 Ω.

The TDA8950 is available in the HSOP24 power package and DBS23P power package.

The ampliﬁer operates over a wide supply voltage range from ±12.5 V to ±40 V and

consumes a low quiescent current.

2. Features

n Pin compatible with TDA8920B for both HSOP24 and DBS23P packages

n Symmetrical high operating supply voltage range from ±12.5 V to ±40 V

n Stereo full differential inputs, usable as stereo Single-Ended (SE) or mono Bridge-Tied

Load (BTL) ampliﬁer

n High output power at typical applications:

u SE 2 × 150 W, R

=4Ω (V

= ±37 V)

u SE 2 × 170 W, R

=4Ω (V

= ±39 V)

u SE 2 × 100 W, R

=6Ω (V

= ±37 V)

u BTL 1 × 300 W, R

=8Ω (V

= ±37 V)

n Low noise in BTL due to BD-modulation

n Smooth pop noise-free start-up and switch down

n Zero dead time Pulse Width Modulation (PWM) output switching

n Fixed frequency

n Internal or external clock switching frequency

n High efﬁciency

n Low quiescent current

n Advanced protection strategy: voltage protection and output current limiting

n Thermal foldback

n Fixed gain of 30 dB in SE and 36 dB in BTL

n Full short-circuit proof across load

3. Applications

n DVD

n Mini and micro receiver

n Home Theater In A Box (HTIAB) system

n High power speaker system

TDA8950

2 × 150 W class-D power ampliﬁer

Rev. 01 — 9 September 2008 Preliminary data sheet

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