Diodes Inc. ZXCW6100S28

Audio Amplifier, 2 Channel(s), 1 Func, PDSO28

IC AMP AUDIO STEREO 25BIT 28SSOP

The ZXCW6100 is part of a new generation of stereo digital audio power amplifier devices. The device offers a move forward to a new level of performance not offered by another solution. The ZXCW6100 operates in direct drive mode and can be selected to bewith or without dead time. Exceptional performance can be achieved with theZXCW6100 device in direct drive mode, the dynamic range is 101dB, the noise floor sits at -110dB and when driving 1W into 4 \Delta THD+N is 0.05%. The device supports all common digital audio input formats. Sampling frequencies up to 192kHz are fully supported, dependant on which sampling frequency is selected then the device can operate in single, dual or quad speed modes. In single speed mode, then the popular 44.1kHz sampling from audio CDs is oversampled up to 768 times. This results in a master clock speed of 33MHz. Digital de-emphasis is also supported as well as mixing and muting according to the ATAPI CD-ROM standard. Other key features include user definable digital control of Volume, Mute, Bass & Treble. The device also features Zetex unique overload management system NOVALOAD(TM). NOVALOAD(TM) can operate in several ways to modify either volume, tone or both with user definable attack and decay rates. There is a hard mute available as well as a mute with digital silence, whereby the output stage is set to the quiescent state. The device is controlled via a 3 wire SPI (SerialPeripheral Interface) interface from the host system controller. Device function control is achieved by writing an 8-bit control and 64 bit data string to internal registers within the ZXCW6100 chip. The SPI interfaceis bi-directional, allowing the configuration to be read back as required. The control bits include a device ID control such that upto 4 ZXCW6100 devices can be used in any one system. This means that in 5.1 surround sound systems, threeZXCW6100 devices can be configured together. The device provides direct drive Pulse Width Modulation (PWM) 2 channel stereo outputs which, via a FET drive interface with an H Bridge output stage,forms a full solution to Digital Power Amplification. Reference designs are available for the solutions with typical power levels up to 60W. The ZXCW6100 device operates from a 3.3V supply with an operating temperature range from -40 \Theta C to+85 \Theta C. The device is supplied in a 28 pin SSOP package.