DIYstompboxes.com

http://www.dtelectronics.com/focus_oki.htm

personally I like the phrase at the end of the first chapter:

Quote..ass transistors are isolated...

but seriously: scroll down a little...

http://elm-chan.org/works/vp/report.html

nice example of what could have been done with that "n.c."  A9 pin
:lol:

http://www.stc.itri.org.tw/CCL/docs/IC_Catalog/datasheet/es56090.pdf

Cool links! 8)

Yes, I think it is very important to make sure your ass transistors are isolated. A separate ground plane is advisable in most instances.

Quotenice example of what could have been done with that "n.c." A9 pin

Are you referring to the /MOTOR output?  :lol:

They must have been thinking of digital distortions when they wrote the following text about the CODEC...

Quote....Designed for hands-free communications systems, it is equipped with grain and mute controls for data transmission and reception....

The MS81V10160 and MS81V06160 look VERY cool! 8) 8) 8)

The ML2500 looks like a very neat chip, but I don't like the idea of cell failure after 10,000 writes.  :?


Thanks for the URLs! 8)

the ISD chips go 100.000 rec/plays: enuff for answerphones...

http://www.willas-array.com/prod/products/directory/pdf/toshiba/AU_0001.PDF

http://www.asahi-kasei.co.jp/akm/en/product/ak7750/ek7750.pdf

http://www.asahi-kasei.co.jp/akm/en/product/ak7712a/ek7712a.pdf

That AK7712A looks like a VERY cool chip! 8)

3) External Memory Access (SRAM·Pseudo-SRAM·DRAM)
·Objective memory: 256k(32k ´ 8-bit),1M(128k ´ 8-bit) ´ 1 / SRAM
256k(32k ´ 8-bit),1M(128k ´ 8-bit) ´ 1 / Pseudo-SRAM
256k(64k ´ 4-bit),1M(256k ´ 4-bit) ´ 2 or ´ 1 / DRAM
(Half volume of 1M DRAM is used as 512k memory.)
·Treating bit length: 16-bit (24-bit is available, but double time is needed for access.)
·The number of times to access:
SRAM, 256k Pseudo-SRAM ; 76 at 384fs
: DRAM, 1M Pseudo-SRAM ; 64 at 384fs (32 at one DRAM)
: SRAM, 256k Pseudo-SRAM ; 51 at 256fs
: DRAM, 1M Pseudo-SRAM ; 42 at 256fs (21 at one DRAM)
·Memory access time:
less than 100nsec
·Maximum address length:
65535 sampling times (at 1M SRAM)
2.048sec at 32kHz, 1.486sec at 44.1kHz, 1.365sec at 48kHz

SRAM, PSRAM, & DRAM.... very nice flexability when you consider that A/D and D/A is also built in. :D

Bank switching could easily be used to extend the SRAM or PSRAM. Hehehehe.... It's 1981 all over again! :mrgreen:

Ah.......youv'e lost me there!
Stephen

Stephen, if you have questions.... the forum provides answers. Just start asking! :D

I think we're going to see more and more of this type of info around here so now is a great time to start answering questions about this stuff. 8)

from the website, it says the 7712 will soon be discontinued for the future,
but being run in "mass production" at the moment....   gotta run!

:lol: soon come: NOS DSP chips ...  :lol:

http://documentation.renesas.com/eng/products/assp/rjj01f0001_audio.pdf

(7MB !)
:wink:

just to put it into some drawer:
http://focus.ti.com/lit/an/slaa123/slaa123.pdf

Quote from: puretubethe ISD chips go 100.000 rec/plays: enuff for answerphones...

yes, but what happens at rec number 100,000?  one cell goes bad and starts making a "tick" sound as that bad cell gets played?  i have replaced one 1420 chip so far (lo-fi loop junky) because of a "tick."

who`ll be the first to use a "Crossbar Latch" for distortion???

http://mms.itweb.co.za/sections/computing/2005/0502020915.asp?S=Reuters&A=REU&O=FRGN

of course, the "CBL-Dist" should come on a printed paper/foil PCB,
and have a thinfilm "OLED" display,
and, most of all: work in its linear region...

 ADAV400  (http://www.analog.com/en/prod/0%2C2877%2CADAV400%2C00.html)

A new SigmaDSP chip was announced at AES. Not as much delay memory, but it also has built in stereo ADC and quad DAC, plus auxillary ADC to hook 4 knobs up.

The nice things about the SigmaDSPs are that the development kits are very nice, come with some great graphic software for dragging and dropping DSP blocks, and the price is right. Also, the chips themselves seem humanly solderable.

Sean Costello (who works for Analog Devices, but not in the SigmaDSP line - I work on high priced software for super fast DSPs that are in no way humanly solderable - well, a few crazy mofos can solder them, but I sure couldn't)

 signal-wizard 2 filter-dsp (http://www.sisp.manchester.ac.uk/signalwizard.shtml)

http://products.zarlink.com/product_profiles/MT8816.htm (http://products.zarlink.com/product_profiles/MT8816.htm)

interesting new device for replacing opto-couplers:
digital isolator:
http://www.analog.com/en/content/0%2C2886%2C767%255F827%255F95767%2C00.html (http://www.analog.com/en/content/0%2C2886%2C767%255F827%255F95767%2C00.html)

P-RAM (http://www.samsung.com/PressCenter/PressRelease/PressRelease.asp?seq=20060911_0000286481)
perfect?

replace your quartz (http://www.sitime.com/news/releases/sit0100102306.htm) with s.th. tiny...

USB-PIC-stick (http://www.st.com/stonline/stappl/press/news/year2006/p2086.htm) for $12

Quad-POT (http://www.intersil.com/data/fn/fn8169.pdf) 256 steps

more (http://www.intersil.com/cda/deviceinfo/0,1477,X9259,00.html#data)

QuoteQuad-POT 256 steps

A better alternative /and much more on their site/:

http://www.analog.com/en/prod/0%2C2877%2CAD5263%2C00.html

Currently in use in my DIY JMP-1 project.

THANX! hadn`t seen those.
(though TSSOP vs SOIC isn`t everybody`s darling)

Honestly when I see a TSSOP package I get dizzy that's why a friend solders them for me.

Blood Cell Memory (http://pr.caltech.edu/media/Press_Releases/PR12942.html)
for a 16-day-delay?  :icon_eek:

0.3mm thin, lettersize display... (http://www.lgphilips-lcd.com/homeContain/jsp/eng/inv/inv101_j_e.jsp?BOARD_IDX=1286&languageSec=E&kinds=IN1)

Don`t TOUCH (http://www.analog.com/UploadedFiles/Data_Sheets/AD7147.pdf) that DIAL

Quote from: puretube on June 29, 2007, 01:26:07 PM
Don`t TOUCH (http://www.analog.com/UploadedFiles/Data_Sheets/AD7147.pdf) that DIAL

Hmmm, I can see it now...  The ROBO-WAH!

`nother (http://www.avagotech.com/products/input_devices/2-direction_input_devices/amrt-1410/) nice solution...

CYOC (http://www.xmos.com/sds-tech.pdf) 

(Cook Your Own Chip)


for X-Mos ...   :icon_eek:

embedded MIX (http://www.elektor.com/news/psoc-firsttouch-kit-for-under-30.375351.lynkx)

Who is going to build the first atto/zepto/yocto " Graphene " - Fuzz ? (http://www.manchester.ac.uk/aboutus/news/display/?id=3529)

(don`t ask me for a PCB-layout, pleeze...  :icon_lol:)


[edit]: just saw it posted earlier, elsewhere i.t. forum... :icon_redface:

Quote from: puretube on February 02, 2007, 02:40:54 AM
Blood Cell Memory (http://pr.caltech.edu/media/Press_Releases/PR12942.html)
for a 16-day-delay?  :icon_eek:

DNA modification in fugus growing on CD material code as a new sound processing mean, Echoplex style effect ?
http://www.sciencedaily.com/releases/2008/04/080407153030.htm
http://www.freepatentsonline.com/7241734.html

Memristor (http://blog.wired.com/gadgets/2008/04/scientists-prov.html)

Quote from: puretube on May 01, 2008, 03:53:43 AM
Memristor (http://blog.wired.com/gadgets/2008/04/scientists-prov.html)

WOOW  :icon_exclaim:  :icon_exclaim:  :icon_exclaim:  :icon_exclaim:

I can hear
clearly now (http://www.azom.com/news.asp?newsID=14893#_top)...   :icon_surprised:

coming up: SDXC 2 TB card in a slot (http://www.sdcard.org/developers/tech/sdxc)

Pressure... (http://www.epcos.com/web/generator/Web/Sections/Press/TradePress/PressReleases2009/SAWComponents/MEMS__Page,locale=en.html)

Forget your DIY charge-pumps... (http://www.audiumsemi.com/news002.php)  :icon_eek:

Quote from: puretube on October 09, 2009, 12:54:31 PM
Forget your DIY charge-pumps... (http://www.audiumsemi.com/news002.php)  :icon_eek:

Hmm. That article is dated October 5th, 2009.

This post is dated June 3rd, 2009:
http://www.diystompboxes.com/smfforum/index.php?topic=76888.0

:P

Quote from: earthtonesaudio on October 09, 2009, 01:26:25 PM

Quote from: puretubech on October 09, 2009, 12:54:31 PM
Forget your DIY charge-pumps... (http://www.audiumsemi.com/news002.php)  :icon_eek:

Hmm. That article is dated October 5th, 2009.

This post is dated June 3rd, 2009:
http://www.diystompboxes.com/smfforum/index.php?topic=76888.0

:P

Volume-dependant PSU goes back way into old tube-times (`30-s/`40-s, IIRC)...

[A nice related thingy is the "Rozenblit"  :icon_wink:]

but HERE today, is THE CHIP for 8 bux to get 100W outta 1V5!!!

I was joking a little, but I do agree that is pretty amazing for such a small chip.  Although, that "100W" is a peak rating, and there's no mention about how long it could sustain that performance.  That becomes pretty important when your source material is a compressed distorted guitar, for example.

No output-coil: just a ferrite bead... (http://focus.ti.com/lit/ds/symlink/tpa3112d1.pdf)

No heat-sink (http://www.ti.com/ww/de/analog/tpa3110d2/)
at least not for: "music"...

(then what`s a fully operational awesome power of a guitar-signal?)
worth a buck and 15 cents to try out?

...for Energy-Harvesting... (http://www.memsinvestorjournal.com/2010/09/stable-patterned-electrets-for-mems-based-energy-harvesters.html)

Knit Your Own Memo-Wear... (http://www.extremetech.com/computing/97387-wearable-electronics-nasa-develops-memory-storing-e-textile-material)
for all you weaverz:
60 µs to 115 days delay???  :icon_eek:

Sense (http://www.avagotech.com/cs/Satellite?blobcol=urldata&blobheadername1=content-type&blobheadername2=Content-Disposition&blobheadername3=MDT-Type&blobheadervalue1=application%2Fpdf&blobheadervalue2=attachment%3B+filename%3DAV02-2573EN.pdf&blobheadervalue3=abinary%253B%2Bcharset%253DUTF-8&blobkey=id&blobtable=MungoBlobs&blobwhere=1210935922694&ssbinary=true) your distance? - Rock your lighting?

or let light wah ... (Farnelled) (http://de.farnell.com/jsp/search/displayproduct.jsp?SKU=1897192&CMP=e-bc82-00001855)

:icon_wink:

What`s HOT (http://www.diystompboxes.com/smfforum/index.php?topic=94425.0) ? ? ?

Thumbnail Stereo Power for under 2 bux, anyone??? (http://www.ti.com/product/tpa3130d2)

:icon_eek: :icon_idea: :icon_eek:

 for that "Speed-Of-Light" FUZZ... (http://spectrum.ieee.org/semiconductors/devices/introducing-the-vacuum-transistor-a-device-made-of-nothing)

Quote from: puretube on June 28, 2014, 04:00:55 AM
for that "Speed-Of-Light" FUZZ... (http://spectrum.ieee.org/semiconductors/devices/introducing-the-vacuum-transistor-a-device-made-of-nothing)

This sounds very similar to something I saw around 15 years ago.  A guy came and did a presentation about his research.  They were fabricating tiny valves on silicon.  The link you attached looks like the technology is planar, but the stuff this guy had was 3D.  There were basically making valves on silicon.  He has a sheet of silicon with thousands of tiny wells in it, each one containing a tiny microscopic cone that pointed up out of the sheet.  Electrons stream from the tip of the code (the equivalent of the filament), and there was the equivalent of a gate near each cone tip to control the flow.  This guy told us a similar story about russian jets using valve technology despite transistors being around for decades.  He reckons they deliberately went with valve technology to make planes resistant to the EM effects from nuclear blasts that would cripple other aircraft.

SQUEEZISTOR...: (http://www.utwente.nl/mesaplus/archive/2014/6/350072/prototype-of-new-transistor-for-lower-power-consumption)  press it to make the electrons run faster  :icon_eek: