Le convertisseur A/D utilisé serait donc celui-là :
Citation:
Cirrus Logic CS5364
If you can understand the lingo, here it is:
114 dB, 192 kHz, 4-Channel A/D Converter
Features
? Advanced Multi-bit Delta-Sigma Architecture ? 24-Bit Conversion
? 114 dB Dynamic Range
? -105 dB THD+N
? Supports Audio Sample Rates up to 216 kHz
? Selectable Audio Interface Formats
– Left-Justified, I2S, TDM
– 4-Channel TDM Interface Formats
? Low Latency Digital Filter
? Less than 365 mW Power Consumption
? On-Chip Oscillator Driver
? Operation as System Clock Master or Slave ? Auto-Detect Speed in Slave Mode
? Differential Analog Architecture
? Separate 1.8 V to 5 V Logic Supplies for Control and Serial Ports
? High-Pass Filter for DC Offset Calibration
? Overflow Detection
The CS5364 is a complete 4-channel analog-to-digital converter for digital audio systems. It performs sampling, an- alog-to-digital conversion, and anti-alias filtering, generating 24-bit values for all 4-channel inputs in serial form at sample rates up to 216 kHz per channel.
The CS5364 uses a 5th-order, multi-bit delta sigma modulator followed by low latency digital filtering and decima- tion, which removes the need for an external anti-aliasing filter. The ADC uses a differential input architecture which provides excellent noise rejection.
Dedicated level translators for the Serial Port and Control Port allow seamless interfacing between the CS5364 and other devices operating over a wide range of logic levels. In addition, an on-chip oscillator driver provides clocking flexibility and simplifies design.
The CS5364 is the industry’s first audio A/D to support a high-speed TDM interface which provides a serial output of 4 channels of audio data with sample rates up to 216 kHz within a single data stream. It further reduces layout complexity and relieves input/output constraints in digital signal processors.
The CS5364 is available in a 48-pin LQFP package in both Commercial (-40°C to 85°C) and Automotive grades (-40°C to +105°C). The CDB5364 Customer Demonstration board is also available for device evaluation and implementation suggestions. Please see “Ordering Information” on page 41 for complete ordering information.
The CS5364 is ideal for high-end and pro-audio systems requiring unrivaled sound quality, transparent conversion, wide dynamic range and negligible distortion, such as A/V receivers, digital mixing consoles, multi-channel record- ers, outboard converters, digital effect processors, and automotive audio systems.
Comme en interne tu fais ce que tu veux ils nous prennent vraiment pour des jambons.
J'espère que ca va changer et avoir au moins le support des 96khz car je pense que l'interface audio est top.
