Flash delivery in the same city of Beijing, massive lossless resources, and Bao Shunfeng (Flash delivery available in the same city of Beijing). The new version of Ruiyi Singxer SU-1 XMOS digital interface ship interface, using XU208 chip, femtosecond clock, using full isolation（Ground isolation）Technology, CPLD shaping technology, source synchronization technology, support 32/384, DSD256, Native mode, firmware upgrade.
Please download the manual and driver from the following network disk, and extract the code ih2k
https://pan.baidu.com/s/1pK7uaW7 (copy to the browser address bar to open)
Evaluation of forums at home and abroad (copy to the browser address bar to open)
http://www.erji.net/read.php?tid=1916246
http://www.head-fi.org/products/singxer-su-1-usb-bridge/reviews/16649
http://www.jplay.info/!blank-2/fbb2v
Product introduction:
SU-1The digital interface is a developed by our teamUSBDigital audio interface, usingXMOSnewxCORE-200Series chips.SU-1Is the use of self-developed superLow jitterClock system（CRYSTEK''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s CCHD-575 series achieves ultra-low jitter at femtosecond level）,havestandardUSB2.0 input interface,Rich output interface, including XLR balanced output AES, coaxialRCA and BNC,Using HDMI socket outputI2SInterface, word clock output WCLK.
SU-1The research and development time of the company is nearly a year, which has also experienced many twists and turns.
SU-1It is the first complete device that we developed. It is positioned in the middle, high and end interface, mainly using the following three main technologies:
1. Full isolation technology（Ground isolation）, Using a 150Mbps fully isolated chip, which can completely isolate the interference from the PC;
2. Source synchronization technology and CPLD shaping technology reshape the isolated I2S signal; thereby eliminating the additive jitter caused by the isolation chip;
3. Self-developed clock system adoptsCRYSTEK''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s high-energy crystal oscillator, low phase noise, low jitter.
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- Below is a photo of the new version of the chassis:
Technical features:
1,SU-1Is domestic adoptionXMOSnewxCORE-200High end of the seriesUSBDigital interface products. New generationXMOSChip, using higher process technology, performance than the old modelU8The chip has doubled, reaching1000MIPSProcessing power.
2As we all know, the core of digital audio is the algorithm. Our team has been working in the field of digital audio for many years, and at the same time we haveXMOS FAEWith the strong support of the team, we have made a number of technical improvements and algorithm optimizations based on the original firmware.
There is also a silver case, the number of silver versions is not very large, please consult before buying.
Technical index:
Sampling rate supported by each output interface:
PCM: 44.1KHz, 48KHz, 88.2KHz, 96KHz,
176.4KHz, 192KHz, 352.8KHz, 384KHz
[among themI2S outSupport all sampling rates,S/PDIFHigh support192KHz]
DSD: 2.8 MHz (DSD64) - DoP,native
5.6 MHz (DSD128) - DoP,native
11.2 MHz (DSD256) - DoP,native
[among themI2S outSupport allDSDformat,S/PDIFwithAES/EBUstand byDSD64 DOPmode]
Bit width: height32 bit over I2S output
high24 bit over S/PDIF
Electrical standards for each interface:
1,USBThe input socket is standardUSB-BType female seat,USBPower supply range4.5V-5.1V；
2,RCAInterface output standardS/PDIF Signal, the level is550mV(Standard load),The output impedance is75ohm;
3. The power input is 115V/230V AC, and the imported TALEMA transformer is used for power supply inside.
Below are the internal photos of the prototype we took, and the mass-produced version will have some improvements.
plan the details:
1, Carry out the design concept that electricity is the mother of sound, pay attention to the design of power circuit, and adopt high-performance, low-noise and fast-responseLDOAs the main power source. The whole board usesmanyRoad independenceLDOPower supply, the clock part even usesADIUltra-low noiseLDO, Lay a solid foundation for ensuring the output performance.
2,PCBMotherboard adopts4Layer circuit board design to ensure a complete ground plane and power layer, and high-speed digital design methods to ensure the signal integrity and power integrity of the entire board. The clock signal is specially processed, and the package design and precise impedance control are adopted to ensure the signal quality of the clock and improve its anti-interference ability. The input and output signals follow the standard design, especiallyUSBHigh-speed signal adopts90Ohm differential impedance control.
System compatibility:
1, Windows 7, Windows 8, Windows 10; 32/64 bit, need to install special driver
2,Native MacOS 10.6 and later, use the system''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s own driver
3. Native Linux with UAC2 compliant kernel, using the system''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s own driver,（Tested on Ubuntu and Daphile systems, based on INTEL X86 platform）
4. For Android OS 4.2 and above, the device needs to support OTG function. Generally speaking, Android 5.0 system is supported by default, and it is recommended to use special players for those below 5.0.
I2S interface adopts HDMI socket output:
1. LVDS differential signal with a level of 3.3V;
2. DSD ON signal, 5V power supply（Small current）, The MUTE signal has been processed by the internal CPLD, and there is no need to output the MUTE signal;
3. The DSD ON signal can be defined by itself, and the DSD ON signal can be output to the PIN13, 14, 15, 16 pins of the socket at will.
4. The phases of PIN1-3 and PIN7-9 are adjustable, and the user can configure the phases of these two pairs of outputs through a switch.
Flexible HDMI-I2S output configuration:
SU-1 can configure HDMI-I2S by dialing the code switch. Switches 1-4 correspond to the PIN13-16 pins of the HDMI socket. Pull to ON, It means that the HDMI PIN has the function of DSD_ON.
Switch 5 is to configure the clock output mode. When it is OFF, the clock outputs MCLK, and when it is ON, it outputs WCK.
Switch 6 is to configure the phase of HDMI PIN1-3 and PIN7-9, when it is ON, it is positive phase, and when it is OFF, it is reverse phase.（Note: When it is ON, it can be matched with the decoder of Goshen; when it is OFF, it can be matched with the PS AUDIO.）.
If your decoder is from Goshen, pull switch 3 and switch 6 to the ON position, and the others are OFF; if your decoder is PS AUDIO, pull switches 1-4 to the OFF position, switch 6 It is also OFF.
Switch 7 and switch 8 are used as backups and have no effect at present.
The following is mass production Version of the case, this switch is on the back of the case, and it can be configured without opening the case.
All switches are OFF by factory default.
SU-1 can be configured by SW switch to adapt to different I2S standards.
But as far as we know, the HDMI-I2S of each manufacturer is different. For most manufacturers, HDMI-I2S is a proprietary protocol of the manufacturer.
So, I’m sorry, SU-1 can’t adapt to all HDMI-I2S devices, so we don’t accept returns due to the incompatibility of the I2S interface.
However, at present we can give the following HDMI-I2S from different manufacturers. Among the following manufacturers, some of the DACs tested are no problem.
Chassis size and packaging:
The length, width and height of the chassis: 238MM*170MM*46MM, excluding the height of the feet and the protruding parts of the connectors at the back of the chassis.
The weight of a single machine is about 1.8KG.
The length, width and height of the carton packaging: 350MM*230MM*110MM.
Shipping package weight: 2.3KG
Accessories: a USB cable.
（The default shipment is not equipped with a power cord）