DAC TLV5613 problem, need ANALOG Expert

終了済み 投稿 Jul 21, 2012 着払い
終了済み 着払い

I have a DAC design with TLV5613CPW. THe requirement of my system, I need to generate analog data at the rate of 1Msps minimum, prefer 2Msps. The purpose of my DAC is to generate a waveform as in the image attached here. The data I send to the DAC can be like this code below:

unsigned int data_dac;

while (1){

write_to_dac(data_dac++);

}

But there is the problemin my design: Each time I update the DAC value, there is an over/under shoot as in the image her. If you know why I have this problem and you know how I can solve this problem, please help.

For your infor, I drive the DAC with PIC18F26J50-I/SS.

I only want to get help from experience electrical engineer, with very strong Analog back ground, and you had done semilar design like mine. Will not accept any paid up front. And I will pay you in full if when your help really improve my design.

Bidder have to have Skype, ability to talk on Skype, Teamviewer

電気工学 エレクトロニクス

プロジェクトID: #2341744

プロジェクトについて

5個の提案 リモートプロジェクト アクティブ Aug 29, 2012

5人のフリーランサーが、平均$380 で、この仕事に入札しています。

MikroStar

hi,i can help.

$850 USD 30日以内
(54件のレビュー)
7.0
deanosAU

Hi I can help, I have plenty of analog experience.

$400 USD 14日以内
(21件のレビュー)
5.7
MIKY4227

i can help you

$200 USD 5日以内
(21件のレビュー)
5.4
lerazam1977

Hello! I have experience with this kind of projects. Please, send full schematics and code for a quick review.

$400 USD 10日以内
(レビュー1件)
1.4
AndrewAR

Hello! Most likely you are forming wrong timing diagrams of signals in the implementation write_to_dac. Can you show the code of this function?

$50 USD 1日以内
(0件のレビュー)
0.0