WM8593_07 Datasheet, PDF (1/98 Pages) Wolfson Microelectronics plc – 24-bit 192kHz 2Vrms Multi-Channel CODEC

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WM8593
24-bit 192kHz 2Vrms Multi-Channel CODEC
DESCRIPTION
The WM8593 is a high performance multi-channel audio
CODEC with flexible input/output selection and digital and
analogue volume control. Features include a 24-bit stereo
ADC with digital gain control, two 24-bit DACs with
independent volume control and clocking, and a range of
input/output channel selection options for flexible routing
within current and future audio systems.
The WM8593 has an eight stereo input selector which
accepts input levels up to 2Vrms. One stereo input can be
routed to the ADC. All inputs can be routed to an output
selector.
The output selector inputs two DAC channels and all
analogue bypass inputs, and outputs three independent
stereo channels at 2Vrms line level. The DAC channels
include independent digital volume control, and all three
output channels include analogue volume control.
The WM8593 is ideal for audio applications requiring high
performance and flexible routing options, including flat panel
digital TV and DVD recorder.
The WM8593 supports up to 2Vrms analogue inputs, 2Vrms
outputs, with sample rates from 32kHz to 192kHz on the
DACs, and 32kHz to 96kHz on the ADC.
The device is controlled via a serial interface with support
for 2-wire and 3-wire control with readback. Control of mute,
powerdown and reset can also be achieved by pin selection.
The WM8593 is available in a 64-lead TQFP package.
FEATURES
• Multi-channel CODEC with 8 stereo input selector and 3
stereo output selector
• 4-channel DAC, 2-channel ADC
• 8x2Vrms stereo input selector with 8x2 channel analogue
bypass to output selector
• 3x2Vrms stereo output selector
• Audio performance
- DAC: 100dB SNR typical (‘A’ weighted @ 48kHz)
- DAC: -90dB THD typical
- ADC: 100dB SNR typical (‘A’ weighted @ 48kHz)
- ADC: -90dB THD typical
• Independent sampling rate for ADC and DACs
• Independent sampling rate for DAC1 and DAC2
• DACs sampling frequency 32kHz – 192kHz
• ADC sampling frequency 32kHz – 96kHz
• DAC digital volume control +12dB to -100dB in 0.5dB
steps
• ADC analogue volume control from +30dB to -97dB in
0.5dB steps
• Output analogue volume control +6dB to -74dB in 0.5dB
steps with zero cross or soft ramp to prevent pops and
clicks
• Headphone drive capability on one stereo output with jack
detect
• Digital multiplexer to interface to multiple digital sources –
DSP, HDMI, memory card
• 2-wire and 3-wire serial control interface with readback and
hardware reset, mute and powerdown pins
• Independent master or slave clocking modes
• Programmable format audio data interface modes
- I2S, LJ, RJ, DSP
• 3.3V / 9V Analogue, 3.3V Digital Supply Operation
• 64-lead TQFP package
APPLICATIONS
• Digital Flat Panel TV
• DVD-RW
• Set Top Boxes
WOLFSON MICROELECTRONICS plc
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Product Preview, January 2007, Rev 1.0
Copyright 2007 Wolfson Microelectronics plc