TDA8922B

TDA8922B 2 × 50 W class-D power amplifier Rev. 01 — 1 October 2004 www.DataSheet4U.com Preliminary data sheet 1. General description The TDA8922B is a high efficiency class-D audio power amplifier with very low dissipation. The typical output power is 2 × 50 W. The device is available in the HSOP24 power package and in the DBS23P through-hole power package. The amplifier operates over a wide supply voltage range from ±12.5 V to ±30 V and consumes a very low quiescent current. 2. Features s s s s s s s s s s s s Zero dead time switching Advanced current protection: output current limiting Smooth start-up: no pop-noise due to DC offset High efficiency Operating supply voltage from ±12.5 V to ±30 V Low quiescent current Usable as a stereo Single-Ended (SE) amplifier or as a mono amplifier in Bridge-Tied Load (BTL) Fixed gain of 30 dB in Single-Ended (SE) and 36 dB in Bridge-Tied Load (BTL) High supply voltage ripple rejection Internal switching frequency can be overruled by an external clock Full short-circuit proof across load and to supply lines Thermally protected. 3. Applications s s s s s Television sets Home-sound sets Multimedia systems All mains fed audio systems Car audio (boosters). Philips Semiconductors www.DataSheet4U.com TDA8922B 2 × 50 W class-D power amplifier 4. Quick reference data Table 1: Quick reference data Conditions Min ±12.5 no load; no filter; no RC-snubber network connected RL = 6 Ω; THD = 10 %; VP = ±26 V RL = 8 Ω; THD = 10 %; VP = ±21 V Mono bridge-...