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EUA5212QIT1 Datasheet(PDF) 1 Page - Eutech Microelectronics Inc |
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EUA5212QIT1 Datasheet(HTML) 1 Page - Eutech Microelectronics Inc |
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1 / 18 page  EUA5212 DS5212 Ver 1.7 May. 2005 1 2-W Stereo Audio Power Amplifier with Four Selectable Gain Settings DESCRIPTOIN The EUA5212 is a stereo audio power amplifier. When driving 1 W into 8-Ω speakers, the EUA5212 has less than 0.8% THD+N across its specified frequency range. Included within this device is integrated depop circuitry that virtually eliminates transients that cause noise in the speakers. Amplifier gain is internally configured and controlled by way of two terminals (GAIN0 and GAIN1). BTL gain settings of 6dB, 15.5dB, 21.5dB and 27.6dB are provided, while SE gain is always configured as 0dB for headphone drive. An internal input MUX allows two sets of stereo inputs to the amplifier .The LINE HP/ terminal allows the user to select which MUX input is active, regardless of whether the amplifier is in SE or BTL mode. In notebook applications, where internal speakers are driven as BTL and the line outputs (often headphone drive) are required to be SE, the EUA5212 automatically switches into SE mode when the BTL SE/ input is activated, and this reduces the gain to 0dB. The EUA5212 consumes only 6 mA of supply current during normal operation. Block Diagram FEATURES 2W per Channel Output Power Into 3-Ω Load Internal Gain Control, Which Eliminates External Gain-Setting Components Input MUX Select Terminal PC-Beep Input Depop Circuitry Integrated Two Input Modes Allowable with Single-Ended or Fully Differential Input Low Supply Current and Shutdown Current Thermal Shutdown Protection TSSOP-24 with Thermal Pad RoHS Compliant and 100% Lead (Pb)-Free APPLICATIONS Notebook Computers Multimedia Monitors Digital Radios and Portable TVs |
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