Chú Singxer SU-6 hơn hẳn SU-1 . Đầu tháng tới có đồ test rồi các bác a.
1 re-shaping the isolated I2S signal
2 CRYSTEK's CCHD-957
3 SPDIF output is re-encoded by FPGA: coaxial output can support PCM 384K and DSD DOP128 at the highest
4 The power system design was optimized and the audio section was powered by a 7.5F (7.5 million uf)
5 built-in FIFO buffers the data and then outputs
Mình thấy số 3, 4 và 5 không có trong SU-1.
PS: All in One, test so sánh vói bộ rời IAN xem sao.
https://shenzhenaudio.com/products/...-cpld-femtosecond-clock-usb-digital-interface
SU-6 is newly developed USB interface, which is positioned at the high-end interface. Compared with previous products, we mainly use the following four new self-developed technologies:
1, built-in CPLD pre-shaping technology, FPGA-based source synchronization technology re-shaping the isolated I2S signal, thus eliminating the additive jitter caused by the isolation chip.
2, the newly designed FPGA algorithm, built-in FIFO buffers the data and then outputs, SPDIF output is re-encoded by FPGA, so that the coaxial output can support PCM 384K and DSD DOP128 at the highest.
3, using CRYSTEK's CCHD-957 high-performance femtosecond crystal oscillator, with the self-developed constant temperature system and ultra-low noise super capacitor power supply system, further improve the short-stability performance of the clock.
4. Original single clock system, all circuits of the whole machine adopt synchronous clock design, in which USB clock is synthesized by PLL derived from femtosecond clock.