ADAU1513

Class-D Audio Power Stage ADAU1513 FEATURES Integrated stereo power stage RDS-ON < 0.3 Ω (per transistor) Efficiency > 90% Short-circuit protection Overtemperature protection GENERAL DESCRIPTION The ADAU1513 is a 2-channel bridge-tied load (BTL) Class-D audio power stage. The power stage can drive the speaker loads of 4 Ω at up to 15 W per channel at high efficiency. The 4-channel audio system can be formed when used with an ADAV4201 pulse-width modulator (PWM) processor using two ADAU1513s. The power stage accepts a 3.3 V logic differential PWM as input from an ADAV4201 processor. The power stage comprises thermal and output short-circuit protection with logic-level error flag outputs for interfacing to a system microcontroller along with reset and mute control of the power stage. The power stage operates from a range of power supply voltages from 9 V up to 18 V. The low power digital logic operates from a 3.3 V supply. The power stage can be used with modulators other than the ADAV4201. Contact your local sales department for application assistance. APPLICATIONS Flat panel televisions PC audio systems Mini components FUNCTIONAL BLOCK DIAGRAM PVDD INL+ A1 INL– A2 PGND PVDD B1 B2 LEVEL SHIFT AND DEAD TIME CONTROL C1 C2 AVDD OUTL– PGND PVDD OUTR+ PGND PVDD VOLTAGE REFERENCE D1 D2 OUTR– PGND OUTL+ www.DataSheet4U.com INR+ INR– AGND DVDD MODE CONTROL LOGIC TEMPERATURE/ OVERCURRENT PROTECTION DGND STDN MUTE ERR OTW Figure 1. Rev. 0 Information furnished by Analog Dev...