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
Application• Digital Flat Panel TV
• DVD-RW
• Set Top BoxesPinout
Specifications
|
CONDITION |
MIN |
MAX |
|
Digital supply voltage, DVDD |
-0.3V |
+4.5V |
|
Analogue supply voltage, AVDD1 |
-0.3V |
+7V |
|
Analogue supply voltage, AVDD2 |
-0.3V |
+15V |
|
Voltage range digital inputs |
DGND -0.3V |
DVDD + 0.3V |
|
Voltage range analogue inputs |
TBD |
AVDD1 + 2.4V |
|
Master Clock Frequency |
|
38.462MHz |
|
Ambient temperature (supplies applied) |
-55 |
+125 |
|
Storage temperature |
-65 |
+150 |
|
Pb free package body temperature (reflow 10 seconds) |
|
+260 |
|
Package body temperature (soldering 2 minutes) |
|
+183 |
Note: 1. Analogue and digital grounds must always be within 0.3V of each other.DescriptionThe 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.
WM8593 Data Sheet
