CEN.GRAND DSDAC 1.0 Advanced

DSDAC 1.0 Advanced model is a new product which was developed on the basis of the standard model by optimizing the clock system and making major modifications to the circuit. It is different from the ordinary DAC. Its high-precision DSD frequency raising algorithm solves the playback problem of dsd64 perfectly. . The synchronous direct clock technology enables the built-in femtosecond clock to be transmitted to the shift register directly without any process, so that the femtosecond performance can directly improve the analog signal quality. The clock blocking technology can isolates the clock of pre-device completely , so that the clock of the pre-device no longer becomes a factor affecting the sound quality.
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Difference between DSDAC1.0 Advanced and standard model
 
1:  The clock system of  advanced model has higher performance, RMS jitter is as low as 100fs
2:  Digital & analog circuit is more advanced，many advance component are used
3:  Fully optimized power system.  Independent transformers are used for analog and digital
4:  More exquisite appearance
 
The performance of advanced model has been greatly improved.  Many customers has confirmed.
 
 
 
DSDAC1.0 is an audio DAC based on DSD audio technology.  It took five years to develop .  It has three advanced audio technologies.
          1:  high-precision algorithm for DSD frequency up
          2:  synchronous direct clock
          3:  clock blocking technology
 
It is a perfect DSD audio DAC.
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Core technology
 
The high-precision frequency rise algorithm  is the core of  DSDAC1.0.   Although there are many ways to realize frequency rising  but the high-precision frequency rise  algorithm is a complex mathematical problem  not a digital technical problem.  The technology of frequency rising not only makes DSD more widely used but also makes DSDAC1.0 become leading audio DAC.
 
Synchronous direct clock technology :  femtosecond clock inside DSDAC1.0 will be sent to the shift register directly without any intermediate conversion , so that the performance of femtosecond clock is directly reflected in the analog output.  This technology is different from the use of external femtosecond clock and built-in femtosecond crystal oscillator.  The use of external clock and built-in crystal oscillator can only be a source clock,  it must be divided by frequency divider.  In this way,  there are large additive jitter which changes the femtosecond clock from femtosecond to picosecond.  The clock of DSDAC1.0 can be sent to shift register directly  without frequency divider,  it is advanced technology of clock application .
 
Clock blocking.   It means that the clock from the pre-devices is abandoned and the DSDAC1.0 only uses the local clock.  In this way, the clock of pre-devices such as digital turntable, CD player and digital interface will no longer affect the performance of  DAC.  As long as the data is correct,  there is no difference in any digital source.  This technology is a dream of digital audio.  Clock blocking  is  synchronization process,  not the ASRC , which has great negative impact on sound quality.  It solves the clock problem that has plagued the digital audio field for a long time.
 
 
DSDAC1.0 has advanced USB interface and can receives DSD source code in native mode.  As a DSD DAC ,  receives DSD source code is a necessary function.  DSDAC1.0 has two ways to input DSD source code:  one is to input dsd64 via SPDIF in DOP mode ,  and the other is to input dsd512 via USB in native mode.  The XU208 scheme of XMOS inside DSDAC1.0 has ground isolation function ,  the interference of the front digital source can be almost  isolate.  We have customized the special driver from XMOS to enable DSDAC1.0 to receive the source code of dsd512 in native mode.
 
advanced model can also be used as a Pre-Amp. It can be provide maximaum 5db gain for the input signal.  In Pre-Amp mode the funtion of DAC would be terminated .