AMB Laboratories DIY Audio

[ds23man]

1 in 1
2 ref in 1
3 Reset
4 Mute
5 SCL
6 SDA
7 AD0/CS
8 Enout
9 Dgnd
10 VD+
11 ref in 8
12 in 8
13 ref out 8
14 out 8
15 Va +
16 Va –
17 out 7
18 ref out 7
19 in 7
20 ref in 7
21 ref in 6
22 in 6
23 ref out 6
24 out 6
25 Va +
26 Va –
27 out 5
28 ref out 5
29 in 5
30 ref in 5
31 ref in 4
32 in 4
33 ref out 4
34 out 4
35 Va +
36 Va –
37 out 3
38 ref out 3
39 in 3
40 ref in 3
41 ref in 2
42 in 2
43 ref out 2
44 out 2
45 Va +
46 Va –
47 out 1
48 ref out 1

[ds23man]

http://easyaudiokit.hobby-web.net/bekkan/variouAmpIc/tryit.html

Regards Gerhard

[linux-works]

I found that in my search. in fact, its funny, you search google on cs3318 and a LOT of the hits is THIS FORUM and this thread some hits of my photos of things that are not even cs3318! google is really jumping the shark, here; they seem to index things just if they are related to something related, sigh.

I wonder if a dc/dc is workable? I have a few sitting here. too bad the chip won't run as low as dual 5, I have a +-5v dc-dc that I could have used. I planned to try it on the older 5v based pga chip (that needs 3 5v supplies, one being negative). maybe with filtering it can be made to work.

also, I'm curious about charge pumps. some run at very high freq's. I'm going to try using a max660 and see if it can create a usable enough negative rail. I really hate having to use 3 wire trafos..

[ds23man]

Nothing wrong with dc-dc converters, Minidsp is using it on their 2x8 and 8x8 dsp boards. To simplyfy the design one can opt for a single 5v supply and use a dc-dc converter for analog audio. But do not tell it to the HIFI guru's , the will start vomiting . They will insist on big linear powersupplies!

Regards Gerhard

[linux-works]

I'm less and less a fan of old classic linear supplies. they are easy, good for DIY, but really horrible to manufacture and get affordable parts for. if you live in the 2 wire transformer world (ac or dc) life is good and you have lots of wall-warts or lumps you can choose from. but if you demand bipolar or even multivoltage, you are in a world of hurt (lol) price and selection wise.

all my audio boxes seem to take in 2 wire power and derive the neg rail or multi rails. a have a ton of small midiman (pre m-audio) boxes that take barrel plugs and yet have internal dual psu's. if they can do it and get good audio performance (I think do they achieve good power supply performance) then we should be able to, also. I think audio guys give up too soon on non-linear psu approaches. not sure why that is.

if the freq is very high and above audio band, it should be work-able. and modern dc-dc chips can run pretty high in freq. as long as that stays out of the analog circuits, you should be good.

[linux-works]

my schmart board and cs3318 soldering attempt:



and I did an i2c level translator so8, too:



have not powered anything on, yet. but continuity test of all 48 pins (!) checked out.

[linux-works]

I needed one of these:

http://secure.transtronics.com/Optivisor.html

I might get one.

anyone have a clue which distance to use (buy) for smd soldering?

da5 is what they say is popular but soldering might be different. you don't want the iron so close that you could hit the visor!

amazon has these for an ok price. just need to know which power to get (will get DA glass).

[ds23man]

I have one with a working distance of 36 cm, that is to close. Get the DA2

[linux-works]

took your advice and ordered the da2. hope you are right (amazon has it and if I need a different power, I can exchange it or just get the new glass lens strip part). this kind of device was long overdue for me, so thanks for pushing me into it

[ds23man]

took your advice and ordered the da2. hope you are right (amazon has it and if I need a different power, I can exchange it or just get the new glass lens strip part). this kind of device was long overdue for me, so thanks for pushing me into it

Everybody above 40 have a denial fase

Gerhard