DESCRIPTION

The WM8608 comprises a high performance multi-channel PWM digital power amplifier controller. Simply by adding appropriate power output stages a multi-channel power amplifier may be built. Six identical full audio bandwidth channels, plus a reduced bandwidth sub channel are provided as PWM outputs, to drive 6 speakers plus Sub.

FEATURES

? Multi-channel PWM audio amplifier controller

? Supports Stereo, 5.1, 6.1 or 7.1 inputs

? Supports 2.1, 5.1 or 6.1 outputs with optional rear centre channel generation

? PWM Audio Performance with typical output stage

? 100dB SNR (‘A’ weighted @ 48kHz)

? 0.01% THD @ 1Watt

? 0.1% THD @ 30Watt

? Integrated Bass Management support with adjustable filter

? Integrated 4-band Graphic Equaliser for 3 front channels

? Adjustable output stage filter compensation for different speakers

? Volume control on each 6.1 channel +24dB to -103.5dB in 0.5dB steps, with volume ramping and auto-mute functions

? Programmable Dynamic Peak Compressor avoids clipping even at high volume settings

? Internal PLL and optional crystal oscillator, supporting Audio and MPEG standards

? 2/3-Wire MPU Serial Control Interface

? Master or Slave Clocking Mode

? Programmable Audio Data Interface Modes

? I2S, Left, Right Justified or DSP

? 16/20/24/32 bit Word Lengths

? De-emphasis support for stereo

? Selectable CMOS or LVDS digital outputs

APPLICATIONS

? Surround Sound AV Processors and Hi-Fi systems

? Automotive Audio

? DVD receivers