TAS5112

www.ti.com TAS5112 SLES048C − JULY 2003 − REVISED MARCH 2004 TM DIGITAL AMPLIFIER POWER STAGE FEATURES D 50 W per Channel (BTL) Into 6 Ω (Stereo) D 95-dB Dynamic Range With TAS5026 D Less Than 0.1% THD+N (1 W RMS Into 6 Ω) D Less Than 0.2% THD+N (50 W RMS into 6 Ω) D Power Efficiency Typically 90% Into 6-Ω Load D Self-Protecting Design (Undervoltage, Overtemperature and Short Conditions) With Error Reporting D Internal Gate Drive Supply Voltage Regulator D EMI Compliant When Used With Recommended System Design APPLICATIONS D DVD Receiver D Home Theatre D Mini/Micro Component Systems D Internet Music Appliance DESCRIPTION The TAS5112 is a high-performance, integrated stereo digital amplifier power stage designed to drive 6-Ω speakers at up to 50 W per channel. The device incorporates TI’s PurePath Digitalt technology and is used with a digital audio PWM processor (TAS50XX) and a simple passive demodulation filter to deliver high-quality, high-efficiency, true-digital audio amplification. The efficiency of this digital amplifier is typically 90%, reducing the size of both the power supplies and heatsinks needed. Overcurrent protection, overtemperature protection, and undervoltage protection are built into the TAS5112, safeguarding the device and speakers against fault conditions that could damage the system. THD + NOISE vs OUTPUT POWER 1 RL = 6 Ω TC = 75°C 0.1 THD + NOISE vs FREQUENCY 1 RL = 6 Ω TC = 75°C PO = 50 W 0.1 PO = 10 W PO = 1 W 0.01 THD+N − Total Harmonic Distor...