WM8595 w 24-bit 192kHz 2Vrms Multi-Channel CODEC DESCRIPTION FEATURES Multi-channel CODEC with 6 stereo input selector and 2 The WM8595 is a high performance multi-channel audio stereo output selector CODEC with flexible input/output selection and digital and analogue volume control. Features include a 24-bit stereo 4-channel DAC, 2-channel ADC ADC with digital gain control, two 24-bit DACs with 6x2Vrms stereo input selector to ADC independent volume control and clocking, and a range of 2x2Vrms stereo output input/output channel selection options with analogue volume Audio performance control for flexible routing within current and future audio - DAC: 100dB SNR typical (A weighted 48kHz) systems. - DAC: -87dB THD typical The WM8595 has a six stereo input selector which accepts - ADC: 96dB SNR typical (A weighted 48kHz) input levels up to 2Vrms. One stereo input can be selected - ADC: -80dB THD typical through an input mux to be routed through to the ADC. Independent sampling rate for ADC and DACs possible The WM8595 outputs two stereo audio channels at line DACs sampling frequency 32kHz 192kHz levels up to 2Vrms, driven from independent DACs. The ADC sampling frequency 32kHz 96kHz DAC channels include independent digital volume control, and both stereo output channels include analogue volume DAC digital volume control +12dB to -100dB in 0.5dB control with soft ramp. steps ADC digital volume control from +30dB to -97dB in 0.5dB The WM8595 supports up to 2Vrms analogue inputs, 2Vrms steps outputs, with sample rates from 32kHz to 192kHz on the ADC input analogue boost control, selectable from 0dB, DACs, and 32kHz to 96kHz on the ADC. +3dB, +6dB and +12dB The WM8595 is controlled via a serial interface with support Output analogue volume control +6dB to -73.5dB in 0.5dB for 2-wire and 3-wire control with full readback. Control of steps with zero cross or soft ramp to prevent pops and mute, emergency shutdown and reset can also be achieved clicks by pin selection. Digital multiplexer to interface to multiple digital sources The WM8595 is ideal for audio applications requiring high DSP, HDMI, memory card performance and flexible routing options, including flat panel 2-wire and 3-wire serial control interface with readback and digital TV and DVD recorder. hardware reset, mute and emergency shutdown pins ADC features master or slave clocking modes The WM8595 is available in a 48-pin QFN package. Programmable format audio data interface modes - I2S, LJ, RJ, DSP 3.3V / 9V analogue, 3.3V digital supply operation 48-pin QFN package APPLICATIONS Digital Flat Panel TV DVD-RW Set Top Boxes WOLFSON MICROELECTRONICS plc Production Data, January 2011, Rev 4.2 To receive regular email updates, sign up at ADC Input Mux WM8595 Production Data BLOCK DIAGRAM PD, Rev 4.2, January 2011 w 2 DVDD DGND AVDD1 ADCVMID AGND1 VREF1C VREF1GND RESET SHUTDOWN MUTE CIFMODE CS SDA SCLK DACDAT1 MCLK1 BCLK1 LRCLK1 DACDAT2 MCLK2 BCLK2 LRCLK2 ADCDAT VREF2VDD VMID2C VREF2GND AVDD2 AGND2