TPA0212 - 具有立体声耳机驱动和集成增益的立体声 AB 类音频放大器

TPA0212是TI德州仪器公司的一款扬声器放大器（AB类/D类）产品，TPA0212是具有立体声耳机驱动和集成增益的立体声 AB 类音频放大器，本站介绍了TPA0212的封装应用图解、特点和优点、功能等，并给出了与TPA0212相关的TI元器件型号供参考。

TPA0212 - 具有立体声耳机驱动和集成增益的立体声 AB 类音频放大器 - 扬声器放大器（AB类/D类） - 低功耗放大器 - 德州仪器

产品描述

The TPA0212 is a stereo audio power amplifier in a 24-pin TSSOP thermally enhanced package capable of delivering 2.6 W of continuous RMS power per channel into 3- speakers, the TPA0212 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 2, 6, 12, and 24 V/V are provided, while SE gain is always configured as 1 V/V for headphone drive. An internal input MUX allows two sets of stereo inputs to the amplifier. The HP/LINE\ 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 TPA0212 automatically switches into SE mode when the SE/BTL\ input is activated, and this reduces the gain to 1 V/V.

The TPA0212 consumes only 6 mA of supply current during normal operation. A miserly shutdown mode reduces the supply current to less than 150 µA.

The PowerPAD package (PWP) delivers a level of thermal performance that was previously achievable only in TO-220-type packages. Thermal impedances of approximately 35°C/W are readily realized in multilayer PCB applications. This allows the TPA0212 to operate at full power into 8- loads at an ambient temperature of 85°C

产品特性

Compatible With PC 99 Desktop Line-Out Into 10-k Load
Internal Gain Control, Which Eliminates External Gain-Setting Resistors
2.6-W/Ch Output Power Into 3- Load
Input MUX Select Terminal
PC-Beep Input
Depop Circuitry
Stereo Input MUX
Fully Differential Input
Low Supply Current and Shutdown Current
Surface-Mount Power Packaging 24-Pin TSSOP PowerPADTM

PowerPAD is a trademark of Texas Instruments.

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