TPA6132A2 - 具有杂音抑制功能的 25mW DirectPath? 立体声耳机放大器 (TPA6132)

TPA6132A2是TI德州仪器公司的一款耳机放大器产品，TPA6132A2是具有杂音抑制功能的 25mW DirectPath? 立体声耳机放大器 (TPA6132)，本站介绍了TPA6132A2的封装应用图解、特点和优点、功能等，并给出了与TPA6132A2相关的TI元器件型号供参考。

TPA6132A2 - 具有杂音抑制功能的 25mW DirectPath? 立体声耳机放大器 (TPA6132) - 耳机放大器 - 低功耗放大器 - 德州仪器

产品特性

Patented DirectPath™ Technology Eliminates Need for DC-Blocking Capacitors
- Outputs Biased at 0V
- Excellent Low Frequency Fidelity
Active Click and Pop Suppression
2.1mA Typical Supply Current
Fully Differential or Single-Ended Inputs
- Built-In Resistors Reduces Component Count
- Improves System Noise Performance
Constant Maximum Output Power from 2.3 V to 5.5 V Supply
- Simplifies Design to Prevent Acoustic Shock
Improved RF Noise Immunity
MicrosoftTM Windows VistaTM Compliant
High Power Supply Noise Rejection
- 100 dB PSRR at 217 Hz
- 90 dB PSRR at 10 kHz
Wide Power Supply Range: 2.3V to 5.5V
Gain Settings: –6dB, 0dB, 3dB, and 6dB
Short-Circuit and Thermal-Overload Protection
±8kV HBM ESD Protected Outputs
Small Package Available
- 16-Pin, 3mm × 3mm Thin QFN

产品应用

Smart Phones / Cellular Phones
Notebook Computers
CD / MP3 Players
Portable Gaming

产品说明

The TPA6132A2 (sometimes referred to as TPA6132) is a DirectPath™ stereo headphone amplifier that eliminates the need for external dc-blocking output capacitors. Differential stereo inputs and built-in resistors set the device gain, further reducing external component count. Gain is selectable at –6dB, 0dB, 3dB or 6dB. The amplifier drives 25mW into 16Ω speakers from a single 2.3V supply. The TPA6132A2 (TPA6132) provides a constant maximum output power independent of the supply voltage, thus facilitating the design for prevention of acoustic shock.

The TPA6132A2 features fully differential inputs to reduce system noise pickup between the audio source and the headphone amplifier. The high power supply noise rejection performance and differential architecture provides increased RF noise immunity. For single-ended input signals, connect INL+ and INR+ to ground.

The device has built-in pop suppression circuitry to completely eliminate disturbing pop noise during turn-on and turn-off. The amplifier outputs have short-circuit and thermal-overload protection along with ±8kV HBM ESD protection, simplifying end equipment compliance to the IEC 61000-4-2 ESD standard.

The TPA6132A2 operates from a single 2.3V to 5.5V supply with 2.1mA of typical supply current. Shutdown mode reduces supply current to less than 1μA.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPA6132A2	WQFN (16)	3.00 mm x 3.00 mm

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