© DENAFRIPS CO. LTD. & VINSHINE AUDIO PTE. LTD. (SINGAPORE)
ALL RIGHTS RESERVED
3.4
PROPRIETARY, STATE-OF-THE-ART USB INTERFACE
The IRIS is equipped with the proprietary USB Audio Solution, powered by STM32F446
Advanced AMR Based MCU. DENAFRIPS redesigned and optimized circuitry, allow the DDC
to be used as high-end DDC with computers / streamers. It supports 24bit/768kHz PCM data
stream, and native processing of DSD up to DSD1024. It comes with licensed THESYCON USB
Driver for Windows Platform.
NOTE:
The USB Module is designed to trigger on
only
when USB Input is selected. This is
intended design to reduce digital input interfaces cross-interference for best sound
reproduction.
3.5
DDC ARCHITECTURE
DIGITAL SIGNAL PROCESSING –
All digital input data are stored in the on-board FPGA high-
speed RAM.
FEMTO CLOCKS
– These data are read from the memory using the ultra-low phase noise,
super accurate FEMTO CLOCKS, located right in the DDC. The processed data are sent to the
digital outputs.
DIGITAL OUTPUTS
– The cleansed, ultra-low jitters data are output via multiple digital
output interfaces simultaneously to the external DAC.
3.6
CLOCK IN
The IRIS supports clock in of audio frequencies 45.1584Mhz, 49.152Mhz. It makes a perfect
companion with the
TERMINATOR-PLUS
to synchronize the CLOCKS.
