TDA8920

INTEGRATED CIRCUITS DATA SHEET TDA8920 2 × 50 W class-D power amplifier Preliminary specification File under Integrated Circuits, IC01 1998 Dec 01 Philips Semiconductors Preliminary specification 2 × 50 W class-D power amplifier FEATURES High efficiency (90%) Operating voltage from ±15 V to ±30 V Very low quiescent current Low distortion Fixed gain of 30 dB High output power Output power limiter Good ripple rejection Usable as a mono amplifier in Bridge-Tied Load (BTL) or as a stereo Single-Ended (SE) amplifier Tracking possibility for oscillator frequency Differential audio inputs No switch-on or switch-off plops Short-circuit proof across the load Electrostatic discharge protection on all pins Thermally protected. QUICK REFERENCE DATA SYMBOL General VDD Iq(tot) η operating supply voltage total quiescent current efficiency Po = 10 W THD = 10% ±15 − 85 ±25 50 90 PARAMETER CONDITIONS MIN. TYP. GENERAL DESCRIPTION APPLICATIONS Television sets Home-sound systems Multimedia systems. TDA8920 The TDA8920 is a high efficiency class-D audio power amplifier. It can be used in a mono Bridge-Tied Load (BTL) or in a stereo Single-Ended (SE) configuration. The device operates over a wide supply voltage range from ±15 V up to ±30 V and consumes a very low quiescent current. MAX. ±30 60 − − 31 − − − − − 37 − − − 50 UNIT V mA % Stereo single-ended configuration Po Gv(cl) Zi Vn(o) SVRR αcs Po Gv(cl) Zi Vn(o) SVRR ∆VO output power closed loop vol...