DAC与Jitter

gzXW

原帖由 zifzhu 于 2007-2-6 17:06 发表

, i3 L6 h3 q9 F2 d- U独立时钟不同于spdif信号的时钟。jitter就产生了。就是这种jitter最难对付。

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5 |9 t- B5 x' g' q. [解决方法你自己在楼上已经说了，商品化的DAC也有，记得TEAC就有一款。

gzXW

找到了，TEAC Esoteric P-70 CD Transport and D-70 D/A Converter
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+ M2 R+ q, y/ @0 F, f, ]P-70 and D-70 combination ($7500 and $6500 respectively)，米物。

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2. The P-70 can achieve word synchronization by accepting a master clock from any suitably-equipped D/A converter. With the converter acting as the master clock, any jitter resulting from data transfer between the player and the converter is essentially eliminated.
   

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1. 
   
2. TEAC also includes 128Mbits of RAM Link buffer (Refined Asynchronous Memory Link) to eliminate jitter, allow high bit-rate and high frequency sampling and make it unnecessary to continuously adjust the clock frequency. “The DAC is locked to a direct crystal-controlled fixed-frequency clock.” On the left and right channels there are three kinds of analog filters that are chosen automatically depending on the sampling frequency. Finally, the D-70 uses four multi-bit DAC Burr Brown PCM1704 units.
   

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zifzhu

原帖由 gzXW 于 2007-2-6 18:47 发表
: i+ f, }6 O* J$ }) {& x6 _5 ?找到了，TEAC Esoteric P-70 CD Transport and D-70 D/A Converter

P-70 and D-70 combination ($7500 and $6500 respectively)，米物。
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4 {# A4 Q: c% ?6 iThe P-70 can achieve word synchronization by accepting  ...

不想上CD啊。就在PC上玩玩。