Fast GB: LM4702 high power amp test board ;)

[ppcblaster]

Thanks for the reply How many do you want?

If I can find any, how many would you like to have?

Thank You ...........Gary

 

[ppcblaster]

What exact part number do you want?

WM8816GEDW/V 16-pin SOIC Wide -25°C to 85°C Production Volumes $7.33

WM8816GEDW/RV 16-pin SOIC Wide -25°C to 85°C Production Volumes POR

WM8816EDW/RV 16-pin SOIC Wide -25°C to 85°C Obsolete POR POR

WM8816EDW/V 16-pin SOIC Wide -25°C to 85°C Obsolete $6.58 NWS

 

[lightphoton]

Veteran - What is the WM8816 chip you guys are referring to? Not part of the 4702 project is it? If you have not shipped my 4702 boards yet let me ask you about the little LM4562 preamp. If you will have boards for that then I would be interested in a couple of them. Thanks.

 

[rjkdivin]

This project is ready (boards are waiting, software tested) but I don't have enough WM8816 chips to support you guys and they are hard to get ;(

An externally hosted image should be here but it was not working when we last tested it.

Damian,

Is this digital volume control on another thread? Is it a stereo board? What is cost per board?

Thanks,

Robert

 

[ppcblaster]

Sorry gentlemen My questions belongs in another thread

For a remote control vol, mute and digital dislpay project held up due to the availablity of the wm8816.

I was contacted by a rep who wants to know how many chips and what for

Vetran, Please answer. Thank You Gary

 

[veteran]

Re: Sorry gentlemen My questions belongs in another thread

For a remote control vol, mute and digital dislpay project held up due to the availablity of the wm8816.

I was contacted by a rep who wants to know how many chips and what for

Vetran, Please answer. Thank You Gary

I need about 25 of them.

Lightphoton, I will send them today. LM4562 is a project now - boards will be ready for about 2 weeks.

SpittinLLama - contact me. I need your address. Set of LM4702 boards is waiting

 

[ppcblaster]

Here is the distributor

MS HiTech is a local distributor out of Hauppauge NY.

Phone: 888-251-2808

Fax: 631-979-0832

www.mshi-tech.com/main.htm

They should be able to help you with your order.


Sincerely
Tom Martinez
Southeast Regional Sales Manager
Wolfson Microelectronics
(919) 345-6629 Mobile
(919) 853-3575 Office

Perhaps one of the members can afford to buy them.

 

[SpittinLLama]

Veteran, Thanks but I am building my own design now. It is going to have options for more than one device per side, option for resistor bias vs. a Vbe multiplyer and options for discrete driver (BD139/140) since I don't know how well the LM4702 will drive more than one FET device.

Sorry for the late response. Been very busy the last couple weeks and haven't had time to get on the forums.

-SL

 

[felixx]

@veteran
How is the sound and noise comparing with LM 3886 or LM 4780 chip amps?
What is the power on 8 ohms measurement and what is slew/rate on single pair output mosfet's.
What is the Uin. for Lm 4702?
Do you think the LM4562 is needed for one pair of output mosfet's?
Do you really are satisfied with the overall sound of this chip?

 

[operafollower]

Great board!

hi veteran.
I am interested in your board.
Can you ship it to Japan?
Otherwise is it already sold out?

 

[veteran]

Felixx, if you make this amplifier proper there is no noise. Comparing to LM3875 and LM3886 - more powerful and 'fresh' sound of MOSFET transistors.

Operafollower, no problem with that. There are still few boards left. Contact me.

 

[bellwood]

Great Work!

Hi veteran.
I am interested in your board.
And,I want to buy 2.
Can you ship it to Japan?

 

[mlamb]

veteran,

Do you have any more pcb's left?


Mike

 

[veteran]

Yes, I can ship them to Japan and yes, I still have few more left

 

[skrew_r]

Hello Veteran
I am interested in your board.

Can you ship it to Bulgaria?

 

[mlamb]

Veteran,

Give me a price for 2 pcb's and shipping to Zip 20110, USA.


Thanks!
Mike

 

[veteran]

Sorry, I'm out of them. If there will be enough people interested - I can place another order (at least 30 boards).

 

[skrew_r]

I need 2 PCB's

 

[TonyTecson]

hello damian,

got your boards last dec12, thanks a lot, you may give the 2 you have to another. and i do hope there is another round, i will get 6 boards..

how about a bridging board using bb-ti drv134?

 

[jeffshort2000]

Veteran,
I would be in for 4 boards and 4 bridging boards if they become available. I do understand that these are stereo boards correct?

Jeff