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發表於 2017-12-14 12:58:55
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本帖最後由 blau.vol 於 2017-12-14 13:35 編輯
Hi spang123 hing ,
NOT really the case ! for PCM , it is R -2R ladder, for DSD , it is NOT go through R2R network , but with another network for processing DSD.
我剛剛新到的 Audio-GD R2R7 DAC (剛剛於上月取得 Blue Moon Awards from 6Moons ) 都是 Hybrid DAC...
內部有 8 個 modules , 4 個以 R-2R module 排列 (True Balanced config) , 4個resistor modules 以 32bit Sigma Delta 排列 (more like dCS ring DAC implementation) .
Digital Signal 入內分流:
- PCM 分到 4個 R2R modules 做 Decode,
- DSD signal 入內行另條線路, 唔會convert to PCM . 直接 Native 行 32bit multi-bit resistor network support UP to DSD1024x via I2S , USB support up to DSD512x (limited by Amanero module ONLY) .
所以 hybrid DAC 內部應是兩部 DAC , 一部 for PCM, 一部 for DSD . so do MSB select II and Audio GD R2R7 DAC
Best,
Blau
VOLENT
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