Author Topic: TDA7294 amp  (Read 17568 times)

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Offline khelo275

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TDA7294 amp
« on: Nov 25, 2005 at 03:29 PM »
helo mga bro!
   I just want to build amp using TDA7294 IC.  tanong ko lang san ba ko makakabili nito, at kung meron magkano nman?!!... pasensya na ho, bago lng!!! tanx... :-\

Offline m0b1u5

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Re: TDA7294 amp
« Reply #1 on: Nov 25, 2005 at 03:40 PM »
try RS Components Philippines...

http://www.rsphilippines.com

If this is what your looking for
    IC, Amplifier, Audio Power, 100W, TDA7294V

its Php 625.00 + plus shipping.

HTH
Know Thyself!

Offline khelo275

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Re: TDA7294 amp
« Reply #2 on: Nov 25, 2005 at 03:57 PM »
Hi dennispm,
     Slamat s reply. tanong ko n rin kung meron din kya s raon ng ganitong IC? pra s raon nlng ako ppunta, pra hindi n rin ako mag bbayad p ng shipping... tanx :)

Offline ATJr.

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Re: TDA7294 amp
« Reply #3 on: Nov 25, 2005 at 04:26 PM »
try mo sa newport or oriental, yung tda7293 mas mataas ang power. ;D
That's OK, you can like or dislike anything you choose. That's the wonderful thing about the freedom

Offline khelo275

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Re: TDA7294 amp
« Reply #4 on: Nov 25, 2005 at 05:03 PM »
tanx 2ny... parehas lng ba cla ng configuration?   may idea kba kung mag kano 2 s oriental?

Offline ATJr.

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Re: TDA7294 amp
« Reply #5 on: Nov 25, 2005 at 05:13 PM »
me kaunting pagkakaiba, mas mataas ang rails ng tda7293, then me provision for slave device for even more output. serach mo na lnag sa sti.com yung data sheet.
That's OK, you can like or dislike anything you choose. That's the wonderful thing about the freedom

Offline rmpmla

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Re: TDA7294 amp
« Reply #6 on: Nov 25, 2005 at 07:13 PM »
helo mga bro!
   I just want to build amp using TDA7294 IC.  tanong ko lang san ba ko makakabili nito, at kung meron magkano nman?!!... pasensya na ho, bago lng!!! tanx... :-\

as sir Tony mentioned, you can try newport in Raon. Have bought a pair about two years ago sa Newport for P190 each.

Offline khelo275

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Re: TDA7294 amp
« Reply #7 on: Nov 26, 2005 at 07:02 AM »
thank u s inyong lahat mga bosing! ngaun may idea n ko kung saan mkakabili at magkano... slamat ulit!!!

Offline khelo275

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Re: TDA7294 amp
« Reply #8 on: Nov 28, 2005 at 05:17 PM »
I think I'll use tda7295 as replacement sa tda7294. my question is pwede bng hindi gamitin ang standby / mute???

Offline JojoD818

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Re: TDA7294 amp
« Reply #9 on: Nov 29, 2005 at 01:54 PM »
I think I'll use tda7295 as replacement sa tda7294. my question is pwede bng hindi gamitin ang standby / mute???

pwede, just make sure it is rigged in such a fashion that it won't be triggered accidenally. however, the mute/standby pin can be used to prevent turn on thump and other power up noises.

pakibasa na lang power amp app notes ng sgs thomson for values and formulas.

cheers


Offline khelo275

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Re: TDA7294 amp
« Reply #10 on: Dec 01, 2005 at 12:44 PM »
Thanks sir jojo,

    nakakita na rin ako ng schematic ng tda7294 8)   ang problema hindi ko maintindihan ??? pero ok nrin kc may pcb layout  ksama nrin ang power supply.....

http://jeanyvesmartin.com/    any comments? :-\

Offline rmpmla

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Re: TDA7294 amp
« Reply #11 on: Dec 02, 2005 at 09:51 PM »
Thanks sir jojo,

    nakakita na rin ako ng schematic ng tda7294 8)   ang problema hindi ko maintindihan ??? pero ok nrin kc may pcb layout  ksama nrin ang power supply.....

http://jeanyvesmartin.com/    any comments? :-\


try mo google translation.

ito rin yung ginamit ko na schematics para sa TDA7294.

http://translate.google.com/translate?u=http%3A%2F%2Fjeanyvesmartin.com%2F&langpair=fr%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools

ginamit nya yung mute/standby kaya wala itong thump pag-switch ON mo.
medyo mahirap nga lang i-layout kasi masyadong dikit yung mga pins ng TDA7294. this, i think,  was also mentioned by sir jojoD in the gainclone thread.

goog luck bro




Offline JojoD818

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Re: TDA7294 amp
« Reply #12 on: Dec 03, 2005 at 02:00 AM »
rmpmla,

yun din LM4780 nakakabaliw, grabe dikit-dikit talaga yun mga pins unlike the older Overture chips.  ;D ;D

khelo,

go for it! mag pc201 ka na lang tapos point to point para wala ng etching. btw, maganda yun may mute function para may turn-on delay so no nasty thumps during power ups.

nakabili ka na ba? Please keep us posted on how it sounds, madami GC addicts dito.  ;D


Offline rmpmla

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Re: TDA7294 amp
« Reply #13 on: Dec 03, 2005 at 06:54 AM »
hi sir jojoD, nami-miss ko na nga ang pag-buo ng GC amp. ubos na kasi yung samples from TI ;D ;D

but with the price of TDA7294, baka subukan ko uli  :) .
this time yung plano ko na 5-channel amp para sa generic DVD player.

khelo,

i second sir jojoD, no need to do the PCB etching. just use the PC201.

   :)

Offline khelo275

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Re: TDA7294 amp
« Reply #14 on: Dec 03, 2005 at 11:02 AM »
  meron din plng english version  ;D... thanks rmpmla!  diba sbi mo ito rin ang ginamit mong schematic? eh kumsta nmn ang resulta? wla bng nging problema?..  how about d sounds, ok nmn b???   pcencia n bro dmi kong tanong :).. never p  kc akong nag assemble ng malaking amp... ( AN214   reference book  Marconi Pagarigan) kya lng distorted :-[ ...

sir jojoD,

cge try ko point to point nlng pra tipid ;D  ok lng b khit ibuka ko ng konte ang paa nung ic?  pra hindi mhirap mag solder...btw, sir jojo,  ano pla 2ng PC201??? psencia n ngaun ko lng 2 nrinig :-[


so far hindi p ko nkakabili ng pyesta, inipon ko pa allowance ko... cguro i post ko nlng pag nabuo ko na
 :)  ;)  thanks mga bro!!

Offline JojoD818

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Re: TDA7294 amp
« Reply #15 on: Dec 03, 2005 at 02:05 PM »
hi sir jojoD, nami-miss ko na nga ang pag-buo ng GC amp. ubos na kasi yung samples from TI ;D ;D

but with the price of TDA7294, baka subukan ko uli  :) .
this time yung plano ko na 5-channel amp para sa generic DVD player.

khelo,

i second sir jojoD, no need to do the PCB etching. just use the PC201.

   :)
bro rmpmla,

same here, since puro tubo na kinakalikot ko ngayon I also miss my GC days. malamang next yir itayo ko na yun tubed and paralleled LM4780 kahit na p2p wiring na lang gawa ng sobrang liit ng space ng mga pins. hay... ang daming projects maski isa walang maumpisahan!  ;D ;D sabagay yun amp3 na puro SMT parts ng www.41hz.com nagawa ko so pwede siguro p2p na 4780 naman.  ;D

baka magamit mo pala ito... may nakita ako sa kanto ng raon/evangelista na 6-gang potentiometer, all 50K pa. hindi ko lang binili kasi ang haba nun shafting pero madali naman gawan ng paraan para sa 5 channel amp mo.

regards

Offline JojoD818

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Re: TDA7294 amp
« Reply #16 on: Dec 03, 2005 at 02:23 PM »
  meron din plng english version  ;D... thanks rmpmla!  diba sbi mo ito rin ang ginamit mong schematic? eh kumsta nmn ang resulta? wla bng nging problema?..  how about d sounds, ok nmn b???   pcencia n bro dmi kong tanong :).. never p  kc akong nag assemble ng malaking amp... ( AN214   reference book  Marconi Pagarigan) kya lng distorted :-[ ...

sir jojoD,

cge try ko point to point nlng pra tipid ;D  ok lng b khit ibuka ko ng konte ang paa nung ic?  pra hindi mhirap mag solder...btw, sir jojo,  ano pla 2ng PC201??? psencia n ngaun ko lng 2 nrinig :-[


so far hindi p ko nkakabili ng pyesta, inipon ko pa allowance ko... cguro i post ko nlng pag nabuo ko na
 :)  ;)  thanks mga bro!!

yan AN214 at LM383T ang mga unang gainclone chipamps na ginawa ko. yun AN214 kasi 5.6W lang yun pero sikat na sikat kasi ginamit sa isang sikat na Pioneer car stereo (yun de relo, KP-5 or AP-5 yata ang model).

yun pc201 ay pcb na may butas na at traces of copper used for prototyping. ito ang takbuhan ng mga taong nagmamadali at excited (kamukha ko  ;D) kapag may bagong circuit na gusto kalikutin. minsan solderless breadboard pang testing pero pc201 pag may soldering na. mura lang ito sa raon mga 20 pesos lang yan bro. sa abroad Veroboard ang brand niyan pero dito sa atin pc201 ang kadalasang tawag dito.

parang ganito itsura ng pc201....



it fits most components even a standard ZIP11 (like the TDA72XX series) kaya sa ilalim solder ka na lang ng jumper at tutunog na yan.  ;)

« Last Edit: Dec 03, 2005 at 02:24 PM by JojoD818 »

Offline rmpmla

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Re: TDA7294 amp
« Reply #17 on: Dec 03, 2005 at 03:12 PM »
bro rmpmla,

same here, since puro tubo na kinakalikot ko ngayon I also miss my GC days. malamang next yir itayo ko na yun tubed and paralleled LM4780 kahit na p2p wiring na lang gawa ng sobrang liit ng space ng mga pins. hay... ang daming projects maski isa walang maumpisahan!  ;D ;D sabagay yun amp3 na puro SMT parts ng www.41hz.com nagawa ko so pwede siguro p2p na 4780 naman.  ;D

baka magamit mo pala ito... may nakita ako sa kanto ng raon/evangelista na 6-gang potentiometer, all 50K pa. hindi ko lang binili kasi ang haba nun shafting pero madali naman gawan ng paraan para sa 5 channel amp mo.

regards

bro jojoD,

nakita ko nga yung mga tube projects mo. ang GALING ! nakakaengayo tuloy subukan. :)

OK yung nakita mo na 6-gang potentiometer.  ano sir ang name nung store?

thanks  ;)

Offline rmpmla

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Re: TDA7294 amp
« Reply #18 on: Dec 03, 2005 at 03:27 PM »
  meron din plng english version  ;D... thanks rmpmla!  diba sbi mo ito rin ang ginamit mong schematic? eh kumsta nmn ang resulta? wla bng nging problema?..  how about d sounds, ok nmn b???   pcencia n bro dmi kong tanong :).. never p  kc akong nag assemble ng malaking amp... ( AN214   reference book  Marconi Pagarigan) kya lng distorted :-[ ...



yup ito nga ang ginamit ko using the PC201 board ( around 1.5"X1.5" lang ang nagamit ko na board per channel ).
pag nasundan mo yung schematics siguradong tutunog yan. yung sound nya ay OK naman. almost the same sound dun sa mga entry/mid level AVR. mas me punch ito kumpara sa OPA 541 and 549. kaya lang hindi ka detailed kagaya ng OPA.

good luck ;D

Offline khelo275

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Re: TDA7294 amp
« Reply #19 on: Dec 03, 2005 at 04:07 PM »
sir jojoD,

pansin ko nga, gumamit ka rin ng mga pc201.  pumasok kc ako dun sa website mo eh ;D...  nice website daming diy picture. sir jojoD, bkit wla kng project ng tda7294? sna s susunod gumawa k rin :).. pede ko bang mkita ung mga project mo?   i mean pasyal me jan s inyo kung ok lng! heheh ;D...

ung ginawa kong an214 amp mono lng tpos may tone control na ksama, kya lng distorted kya gus2 ko png gumawa nung mejo malakas ( mejo malakas and destortions hehehe ;D).  prefered n rin ung pcb layout s books ni pagarigan.  bka mmya mag tatanong n ko d2 s akihabara kalookan kung meron cla ng tda7294 / pc201 pra maumpisahan ko, im eager n tlaga!! :P


rmpmla,
ok susubukan ko n ung pc201 board... excited n tlaga ko eh.     bro, ano pla source mo ng signal dvd or vcd/ cd? ginamitan mo b ng tone control?. let say gamitin ko to s  sony diskman kahit wlang tone control, maganda kya ang deliver ng bass???

cge mga bro, tanx!   logout muna ko, punta muna ko s akihabara
 


Offline JojoD818

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Re: TDA7294 amp
« Reply #20 on: Dec 04, 2005 at 01:45 AM »
bro jojoD,

nakita ko nga yung mga tube projects mo. ang GALING ! nakakaengayo tuloy subukan. :)

OK yung nakita mo na 6-gang potentiometer.  ano sir ang name nung store?

thanks  ;)


natyambahan lang!  ;D ;D ;D

sa sidewalk ko nakita yun pot, ang dami dun eh at nakakabit pa sa pcb kaya ikaw pa magtatanggal. meron naman daw silang vom kaya pwede test. good luck bro!



Offline JojoD818

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Re: TDA7294 amp
« Reply #21 on: Dec 04, 2005 at 01:58 AM »
sir jojoD,

pansin ko nga, gumamit ka rin ng mga pc201.  pumasok kc ako dun sa website mo eh ;D...  nice website daming diy picture. sir jojoD, bkit wla kng project ng tda7294? sna s susunod gumawa k rin :).. pede ko bang mkita ung mga project mo?   i mean pasyal me jan s inyo kung ok lng! heheh ;D...

ung ginawa kong an214 amp mono lng tpos may tone control na ksama, kya lng distorted kya gus2 ko png gumawa nung mejo malakas ( mejo malakas and destortions hehehe ;D).  prefered n rin ung pcb layout s books ni pagarigan.  bka mmya mag tatanong n ko d2 s akihabara kalookan kung meron cla ng tda7294 / pc201 pra maumpisahan ko, im eager n tlaga!! :P

cge mga bro, tanx!   logout muna ko, punta muna ko s akihabara
 



hi,

sensya na sa website at almost 2 years ko ng hindi na update ito. hindi ko na inilagay sa website yun ibang mga projects ko kaya ayun puro luma na.  ;D pero pag sinipag ako mag upload ako ng mga new projects. ive tried na the 72XX series, pati mga tda20XX pinatulan ko na din, pero noon pa yun.  ;D ;D ;D

san ka ba? sa marulas lang ako pero nun binata pa me sa may mcu ako dati kaya walking distance din sa akin ang akihabara sa kalookan! kilala ko yun shop owner niyan kasi elementary pa lang ako bumibili na ako sa kanila. sayang at wala na si Lina, may special discount pa naman ako dun.  ;D ;D anyway, welcome ka naman sa amin basta electronics pwedeng-pwede.  ;) meron ako gamit dito tube hybrid gc using LM3875 pwede mo silipin, wag mo lang pag praktisan kay misis yun eh.  :P

ps: pag narinig mo na yun mga LM3875, LM3886, TDA7294, TDA1514A, OPA541, OPA549 etc... makakalimutan mo yan problema mo sa AN214 mo. promise.  ;)


Offline khelo275

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Re: TDA7294 amp
« Reply #22 on: Dec 05, 2005 at 01:42 PM »
thanks sir jojo :)

 last saturday nagpunta ko s akihabara kya lng wla ung tda7294 / lm3875,  sbi nung lalaki s raon nlng daw.  kya yon hindi p rin ako nkabili...

cguro pasyal nalang muna ko jan s inyo, pra makakuha man lng ng concept kung pano mo ginawa... d2 lng nman ako s may  araneta village malabon. d2 kc work ko...marulas, malapit lng yan d2,  cguro mag bbike lng ako mkakapunta n ko jan :)  basta one of dis day ppasyal ako jan... kelan kba nariyan? anong araw/ oras?...
excited n ko mkapunta jan, gusto ko ng marinig ung mag masterpiece mo.
  buti nlng may mga pinoy gc diy n katulad mo, khit papano meron kaming natatanungan ;)...sna i update mo n website mo pra may mga bagong picture kna ng gc.  pra marami pa ang ma-encourage sa diy audio, tulad ko ;)

btw, sir jojoD ano pla complete address mo?? thanks

Offline JojoD818

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Re: TDA7294 amp
« Reply #23 on: Dec 05, 2005 at 02:03 PM »
thanks sir jojo :)

 last saturday nagpunta ko s akihabara kya lng wla ung tda7294 / lm3875,  sbi nung lalaki s raon nlng daw.  kya yon hindi p rin ako nkabili...

cguro pasyal nalang muna ko jan s inyo, pra makakuha man lng ng concept kung pano mo ginawa... d2 lng nman ako s may  araneta village malabon. d2 kc work ko...marulas, malapit lng yan d2,  cguro mag bbike lng ako mkakapunta n ko jan :)  basta one of dis day ppasyal ako jan... kelan kba nariyan? anong araw/ oras?...
excited n ko mkapunta jan, gusto ko ng marinig ung mag masterpiece mo.
  buti nlng may mga pinoy gc diy n katulad mo, khit papano meron kaming natatanungan ;)...sna i update mo n website mo pra may mga bagong picture kna ng gc.  pra marami pa ang ma-encourage sa diy audio, tulad ko ;)

btw, sir jojoD ano pla complete address mo?? thanks


sure punta ka, dun ka na sa alternate route dumaan papunta dito kung mag bike ka. usually sa umaga wala ako pero sa hapon dito na ako. pm ko sa iyo directions.

sobrang busy pa eh kaya di maumpisahan yun update ng website ko.  ;D member naman ako ng gc webring kaya makita mo din projects ng ibang diyers.

sige kitakits na lang tayo....

Offline khelo275

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Re: TDA7294 amp
« Reply #24 on: Dec 07, 2005 at 07:21 AM »
cge pm mo sa akin ung lugar nio, pag mejo napaaga ako ng out ppunta nalang ako jan...

nung monday pumunta ang kaibigan ko s raon (oriental)  pinatanong ko kung magkano ang tda7294/lm3886,   ung 7294 is 215 pesos  ung 3886  265 pesos.  orig kya ito?  kc nkita ko sa pricelist ng RS electronics,  almost 600+ ung 7294,  ung 400+ nman ung 3886... nag aalangan tuloy akong bumili bka fake,   syang nman ang pera ;D

Offline JojoD818

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Re: TDA7294 amp
« Reply #25 on: Dec 07, 2005 at 09:56 PM »
baka naman old stock lang nila yun kaya mura pa nila binebenta? pero yun 3875 lang ang alam ko na may fake, kung sakali ngayon ko lang malalaman na may fake 7294 at 3886.  ;D

subukan mo na lang para malaman natin kung fake.  ;D ;D ;D joke  ;D ;D ;D

dami naman diyers dito ask mo experience nila in buying parts sa oriental.

 :)

Offline rmpmla

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Re: TDA7294 amp
« Reply #26 on: Dec 08, 2005 at 07:44 AM »
sa newport Raon ko nabili yung TDA7294 ng P190 two years ago at halos hindi nalayo sa present price ng Oriental na P215. malamang isang source lang ang pinanggalingan nyan.

luckily, tumunog naman yung amp  ;D ;D

« Last Edit: Dec 08, 2005 at 07:45 AM by rmpmla »

Offline ATJr.

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Re: TDA7294 amp
« Reply #27 on: Dec 08, 2005 at 07:44 PM »
rmpla,
how is the sound compared to lm3886? i was at newport today and they have in stock 12 pcs TDA7293 for 260 pesos each. these chips can take +/-50volt rails!!! ;D
That's OK, you can like or dislike anything you choose. That's the wonderful thing about the freedom

Offline rmpmla

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Re: TDA7294 amp
« Reply #28 on: Dec 08, 2005 at 08:56 PM »
sir 2ny,

hindi pa ko naka-assemble ng lm 3886 kaya wala ako comparison. but comparing to OPA541 and 549, the TDA7294 has more punch sa bass pero parang magaspang yung mid and hi.
kung ire-rate ko yung tatlo mas preferred ko sound ng OPA549, folllowed by OPA541 and last yung TDA7294 

Offline ATJr.

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Re: TDA7294 amp
« Reply #29 on: Dec 09, 2005 at 02:48 PM »
Quote
dami naman diyers dito ask mo experience nila in buying parts sa oriental.

yes, oriental can be trusted, i also buy from liamson, newport, hirose, eleshop.....you have to be carefull when buying form deeco....


rmpla,

so the tda's will make good bass amps! ;D ;D


« Last Edit: Dec 12, 2005 at 11:48 AM by 2ny »
That's OK, you can like or dislike anything you choose. That's the wonderful thing about the freedom