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| [#1] Parallel DAC... Hows do they work? 今日同班發燒友吹水 見到有好多唔同嘅 d a c 裏面都會見到用parallel dac... For example 8x 1704 2x 1541 4x.1541 each channel.. Etc.. 究竟佢哋係點樣運作嘅呢 Thxx 最後修改時間: 2021-03-24 17:07:07 |
hahayanyan 正式會員49.xxx.xxx.32 |
2021-03-24 16:53 | |
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| [#2] Parallel DAC... Hows do they work? 加大電流輸出，Lite DAC-AH黑膠味dac就係用八粒TDA 1543并聯輸出 |
BB1668 會員 113.xxx.xxx.225 |
2021-03-24 17:08 |
| [#3] Parallel DAC... Hows do they work? 除咗並聯輸出 有冇其他公司用其他手段呢? Thx for sharing |
hahayanyan 正式會員 49.xxx.xxx.32 |
2021-03-24 17:20 |
| [#4] Parallel DAC... Hows do they work? 1. Depending on architecture can improve SNR (S/N ratio) since signal adds coherently and noise does not so you gain a little with each extra DAC. 2. May increase drive level from parallel outputs (again architecture-dependent)  |
mcc_2001 正式會員 218.xxx.xxx.114 |
2021-03-24 17:31 |
| [#5] Parallel DAC... Hows do they work? Oh... What is that building.... 12 floor of dac? 1) how easy to ensure coherency? 2) drive level in a sense of? Haha Anyone is then procssing those dac output to a AD or fpga chip for some funny extraction and then pas through another 2 dac for the final stage? 最後修改時間: 2021-03-24 17:45:00 |
hahayanyan 正式會員 49.xxx.xxx.32 |
2021-03-24 17:34 |
| [#6] Parallel DAC... Hows do they work? Also, this kind of building blocks can be found on old Accuphase with 16x parallel DAC. Very interesting indeed.  |
mcc_2001 正式會員 218.xxx.xxx.114 |
2021-03-24 17:45 |
| [#7] Parallel DAC... Hows do they work? In theory... Is that more is better? OH...16 Haha 最後修改時間: 2021-03-24 17:52:53 |
hahayanyan 正式會員 49.xxx.xxx.32 |
2021-03-24 17:52 |
| [#8] Parallel DAC... Hows do they work? As the noise of electronic components are most likely random, therefore adding one device (including transistor, op-amp, dac... etc. ) in parallel will reduce noise by sq root 2 x N. (Ref below)  |
mcc_2001 正式會員 218.xxx.xxx.114 |
2021-03-24 18:49 |
| [#9] Parallel DAC... Hows do they work? So easy to understand... With equation and diagram haha Thx |
hahayanyan 正式會員 49.xxx.xxx.32 |
2021-03-24 18:56 |
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