Category: Multimedia -> Audio -> Amplifiers -> Power Amplifiers
Description: Class-D Audio Power Amplifier ¨C 2 ¡Á 25W <<<>>>The AD1994 class-D amplifier integrates a stereo ¡Æ∆ modulator and stereo ¡°bridge-tied" load (BTL) power stage onto a single die capable of delivering 50W of continuous power without a heat sink. The new ¡Æ∆ modulator architecture uses a patented dynamic hysteresis algorithm to achieve audiophile performance (THD < 0.005 %, SNR > 105 dB) without compromising efficiency. The closed-loop architecture and continuous-time modulator front-end achieve a PSRR > 65 dB, and the stereo BTL power stage requires only a single supply that can operate over a wide voltage range. The ¡Æ∆ modulator in the AD1994. designed to minimize radiated and conducted EMI and RF emissions, can optionally be used to drive external power devices to achieve arbitrarily high output power. <<<>>><<<>>>Applications<<<>>><<<>>><<<>>>Advanced televisions <<<>>>Compact multimedia systems <<<>>>Minicomponents <<<>>>Active loudspeakers
