question: psp amp mod

[j.s2ghetto]

Okay today i bought this ihome2go thingy i opened it up an it has a pretty small amp in it and a pair of speakers so i was thinking maybe i can make this internal like mooto did
then i started to google amps and stuff like that and i can across this
http://tangentsoft.net/audio/cmoy-tutorial/assy.html and i thought this is super small and would fit in the umd drive area and with the supplies and skill i think i we all could build it

but i don't know will it work?

and can u guys help me find a small amp like this or build one 

**UPDATE**
i found a LM386 chip amp http://www.instructables.com/id/SBSCBOTFFRCPA69/


-THANKS-

[mootoo]

I think everithing U got here is too big.

[gr8npwrfl]

This pocket amp won't work for you. It requires plus and MINUS 9 volts to power it.

Also to many components unless you make them all surface mount you will never fit it in with the speakers.

I will upload a schematic for you in the next post let me get it.

[gr8npwrfl]

Ok, I had to digitize the schematic here goes:

We use a tda7053 stereo amp. This is the schematic



The amp will run from 4.5s volt up to 18 volts, you want to hook it to the 5 volt source.
The 100 nf cap can be deleted you don't need it (1)

The dc volume control uses this schematic



the source for all your part needs

http://www.digikey.com

this is the part listing for the tda7053 amp



You will notice there are only 6 parts and the amp is a 16 pin chip. If you do not want to deal with the surface mount
chip you can buy a dip ( normal leaded part ). If you look to the right of the column you will see the part is only $1.45 in 1 piece quantities.

This is a real kick ass amp. Lots of base and with a few more components we can add base boost to the circuit. It has overload protection and will not blow out if you have a bad speaker connection.

[j.s2ghetto]

thanks for the replys and gr8npwrfl u want to work on this with me i need some help i am not good at reading these kinds of schematics so if u can wanna help

[gr8npwrfl]

Ok,

Will translate that schematic for you.

I will draw it up and then repost it here cause I think more people are interested.

[j.s2ghetto]

Ok,

Will translate that schematic for you.

I will draw it up and then repost it here cause I think more people are interested.

kool thanks for ur help

[gr8npwrfl]

Ok here we go here is the schematic



Parts list for stereo Amp

QTY       Name                        Source
---------------------------------------------------------
1   TDA7053A Stereo Amp      www.digikey.com
2   470 nano farad caps        Radio Shack
2   5 K Ohm resistors          Radio Shack
1   220 Micro Farad 6 Volt Cap    Radio Shack
1   1 Mega Ohm trimmer       Radio Shack
1   1 Micro Farad 12 Volt Cap    Radio Shack


The Chip is a 16 pin ic you only have to hook up the pins that I have in the
schematic. Do not hook up the others.

The part that says 1M is a trimmer so you can adjust it to set the max volume
so depending on the speakers you choose you don't damage them.

Including the chip a total of 8 parts that will fit in the UMD drive
bay along with the speakers

Left and Right inputs hook to the positive side of the origional speakers
( The red wire on the speaker plugs )

You will set the max volume to get the highest you want. Then you use the
PSP volume control to turn the volume up and down.

Any other questions and I will be glad to help. I have built this circuit and it
works very well.

[j.s2ghetto]

thank u very much
off i go to radioshack

[K4P741N KRUNCH]

You know, I thought I was pretty smart..

Until I just looked at the above diagram.  Theres some symbols on there I've never seen before, I wouldn't know where to begin :P

On the other hand, woot, hope it works out for you!

[gr8npwrfl]

Ok,

 I will do a series of still pictures and video.

That way everyone can follow along.

very easy very cheap.

But I spent four years in engineering school to so I take to many things for granted.

SORRY

[Cratos]

hey guys, quick noob question how does it work on only positive 4.9v, doesnt it need plus and minus 4.9v to complete the circuit?

[gr8npwrfl]

It creates the minus inside the chip.

[Cratos]

What i don't understand.....?

[K4P741N KRUNCH]

It creates the minus inside the chip.

Ain't technology grand!

[gr8npwrfl]

By taking the positive voltage inverting it and running it through a charge pump you can convert +5 volts to - 5volts.

They do that all inside the chip to generate the power they need.

[Cratos]

i thought that ive seen this before http://www.quasarelectronics.com/images/3000/3139.jpg

[j.s2ghetto]

i thought that ive seen this before http://www.quasarelectronics.com/images/3000/3139.jpg

is there a link to buying it

[gr8npwrfl]

No problem,
 here ya go

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=568-3491-5-ND


just enter how many you want and enter your info

[Cratos]

i rather build it myself

[j.s2ghetto]

i rather build it myself

that is just the ic chip not the thing built