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TPA6132A2 データシート(PDF) 10 Page - Texas Instruments |
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TPA6132A2 データシート(HTML) 10 Page - Texas Instruments |
10 / 28 page Click-and-Pop Suppression HPVDD HPVSS HPVDD HPVSS Charge Pump INR+ INR- INL+ INL- OUTL OUTR CPP CPN HPVSS G0 EN Thermal Protection Gain Select G1 VDD Supply Control PGND SGND HPVDD Resistor Array 1 F m 1 F m 2.2 F m Short-Circuit Protection Resistor Array HPVDD TPA6132A2 SLOS597A – DECEMBER 2008 – REVISED OCTOBER 2014 www.ti.com 8 Detailed Description 8.1 Overview The TPA6132A2 is a DirectPath™ stereo headphone amplifier that requires no output DC blocking capacitors and is capable of delivering 25m-W/Ch into16- Ω speakers. The device has built-in pop suppression circuitry to completely eliminate pop noise during turn- on and turn-off. The amplifier outputs have short- circuit and thermal- overload protection. 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. Differential stereo inputs and built-in resistors set the device gain, reducing external component count. The TPA6132A2 has four gain settings which are controlled with pins G0 and G1. The combination of these pins set the device to –6-dB, 0-dB, 3-dB or 6-dB gain. The TPA6132A2 operates from a single 2.3-V to 5.5-V supply with 2.1 mA of typical supply current, as it uses a built-in charge pump to generate a negative voltage supply for the headphone amplifiers. Shutdown mode reduces supply current to less than 1 μA 8.2 Functional Block Diagram 10 Submit Documentation Feedback Copyright © 2008–2014, Texas Instruments Incorporated Product Folder Links: TPA6132A2 |
同様の部品番号 - TPA6132A2_17 |
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同様の説明 - TPA6132A2_17 |
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