2008 7月-12月 第1項課程召集 - (1) 夏季 DAC 原理和製作班 (10月11日繼續組裝)

I would like to reserve one seat. Thanks.

Hi

    I have just paid the deposit HK$500 into your HSBC account this afternoon (29-07-2008). Please check.

MAKCW

Hi KK Sir,

     Personally, I think the course is running a bit too fast. And the course material is not detailed enough. I just cannot absorb all the materials just seeing your Power Point flashing on the screen. It'd be better if you can do it a bit slower. Would you please email us the notes before the class or delivery the hardcopy to us during the class, and it will make life easier. Thanks.
     
MAKCW

Hi KK Sir,

     Good to know that there will be a special class for pure DAC Theory this week. I would like to learn more materials on the topology behind good DAC design instead of practical soldering and assembly skills. Please kindly inform me the time and date when it is fixed.

     Regarding the teaching materials, I think it will be great if you can follow closely on the materials as listed inside the course outline. Maybe I am lost as no course notes will be delivered, it seems to me that the following parts have been skipped.

4. 怎樣在CS8414 Re-Clock?
5. CS8414 外的其他選擇
6. Non oversampling VS Oversampling, 那個較好?
7. SRC (Sampling rate converter)
10. 怎樣調較接收晶片?
11. DIY Layout Tips
12. Analog部份LPF和膽輸出討論
17. 真Balance輸出的做法 (不是用opamp +/- 輸出的假Balance), 首次在DIY市場上出現.

     Regarding the 5 blocks you mentioned so far, DIR, Digital Filter, DAC, LPF and Output buffer. May I ask why we need a LPF? What make a good LPF? What is the purpose of an Output buffer? Why not output the signal directly to next stage?

     Thank you for your help.

MAKCW

Hi Admin,

     Both Choice 1 and Choice 2 are OK for me. Thanks.

MAKCW

Hi KK Sir,

     I have been assembling the TDA1541 MkIII kit. I find the following parts missing:

     a. The 24 pins IC socket for SAA7220 is missing

     b. The four Op Amp NE5534 are missing

     Secondly, I am thinking to add the tube buffer as the output for the TDA1541 MkIII kit. Please advise the pricing for the tube buffer kit. Thanks.

MAKCW