EUA2075 Datasheet | Eutech Microelectronics

2.8W/CH Stereo Filterless Class-D Audio Amplifier with 64-Step DC Volume Control, AGC and Headphone Output DESCRIPTION The EUA2075 is a high efficiency, 2 channel bridged-tied load (BTL), class-D audio power amplifier with headphone output. Operating from a 5V power supply, EUA2075 is capable of delivering 2.8W/channel of continuous output power to a 4Ω load with 10% THD+N. The EUA2075 Features an advanced 64-step DC volume control which offers a range of speaker gain from -70d B to 20d B and a range of HP gain from -80d B to 3.5d B. The AGC detects output signal clip due to the over level input signal and suppresses it automatically. Moreover the AGC can adapt the output clip caused by power supply voltage down with battery. The new filter-less architecture allows the device to drive the speaker directly, without low-pass output filters, which will save system cost and PCB area. The EUA2075 also Features short-circuit and thermal protection preventing the device from being damaged during a fault condition. The EUA2075 is available in 24-pin SOP and 20-pin 4×4 TQFN package. Typical Application Circuit Features Wide Supply Voltage: 2.7V to 5.5V Unique Modulation Scheme Reduces EMI Emission 2.8W/ch into an 4Ω Load From 5V Supply 64-Step DC Volume Control Headphone Output Function Auto Gain Control Thermal and Short-Circuit Protection Integrated Click and Pop Suppression Available in SOP-24 and TQFN-20 Packages Ro HS pliant and 100% Lead(Pb)-Free Halogen-Free APPLICATIONS LCD Monitors/TVs All-in-One PCs Portable Audio Notebook PC DS2075 Ver 1.0 July 2014 Figure1. Pin Configurations Package Type Pin Configurations Package Type Pin Configurations SOP-24 TQFN-20 Pin Description SOP-24 BYPASS RIN GND LIN VOLUME 2 3 4,5,20,21 6 7 MUTE SE/BTLB NC AGC VDD HP_LOUT HP_ROUT LOUTN LOUTP ROUTP ROUTN 14,16 10 12,18,23 13 15 17 19 22 24 TQFN-20 3 4...