ZXCD1010 Datasheet | Zetex Semiconductors

DESCRIPTION The ZXCD1010 provides plete control and modulation functions at the heart of a high efficiency high performance Class D switching audio amplifier solution. In bination with matched output magnetics and Zetex HDMOS MOSFET devices, the ZXCD1010 provides a high performance Class D audio amplifier with all the inherent benefits of Class D. The ZXCD1010 is an enhanced version of the ZXCD1000. The timing resistor for the oscillator is taken off the chip enabling improved oscillator frequency matching device to device. The ZXCD1010 solution uses proprietary circuitry and magnetic technology to realise the true benefits of Class D without the traditional drawback of poor distortion performance. The bination of circuit design, magnetic ponent choice and layout are essential to realising these benefits. The ZXCD1010 reference designs give output powers up to 100W rms with typical open loop (no feedback) distortions of less than 0.2% THD + N over the entire audio frequency range at 90% full output power. This gives an extremely linear system. The addition of a minimum amount of feedback (10d B) further reduces distortion figures to give < 0.1 % THD + N typical at 1k Hz. From an acoustic point of view, even more important than the figures above, the residual distortion is almost totally free of any crossover artifacts. This allows the ZXCD1010 to be used in true hi-fi applications. This lack of crossover distortion, sets the ZXCD1010 solutions quite apart from most other presently available solutions. FEATURES - 90% efficiency - External ROSC COSC for improved accuracy - 4 / 8 Ω drive capability - Noise Floor -115d B for solution - Flat response 20Hz - 20k Hz - High gate drive capability ( 2200p F) - Very low THD + N 0.2% typical of full power up to 90% ( for the solution) APPLICATIONS - - - - - - - - DVD receivers Automotive audio systems Home Theatre Multimedia Wireless speakers Portable audio Sub woofer systems Public Address systems - plete absence of crossover...