NCP2817

NCP2817 NOCAP] LongPlay Headphone Amplifier NCP2817 is a dual LongPlay true ground headphone amplifier designed for portable communication device applications such as mobile phones. This part is capable of delivering typical 27 mW of continuous average power into a 32 W load from a 1.8 V power supply with a THD+N of 1%. Based on the power supply delivered to the device, an internal power management block generates a symmetrical positive and negative voltage. Thus, the internal amplifiers provide outputs referenced to Ground and the losses are reduced which helps to increase the battery life. In this NOCAP configuration, the two external heavy coupling capacitors can be removed. It offers significant space and cost savings compared to a typical stereo application. NCP2817 is available with internal gain of −1.5 V/V. It reaches a superior −100 dB PSRR and noise floor. Thus, it offers high fidelity audio sound, as well as a direct connection to the battery. It contains circuitry to prevent from “Pop & Click” noise that would otherwise occur during turn−on and turn−off transitions. The device is available in 12 bump CSP package (1.62 x 1.22, 0.4P) which helps to save space on the board. Features NOCAP Output Eliminates DC−Blocking Capacitors: ♦ Saves Board Area ♦ Saves Component Cost ♦ No Low−Frequency Response Attenuation LongPlay Architecture: Increase the Battery Life High PSRR (−100 dB): Direct Connection to the Battery High SNR Performance (100 dB) “Pop and Click”...