So are you trying to sample a voice signal with a the ADC0804 A/D Converter?
For that you want a sample rate that is at least twice the highest voice frequency of interest. You also need a high-order antialias low-pass filter at the input to the A/D with a frequency corner equal to the desired voice bandwidth.
Well my nickname is really Zapper, as shown on the bottom of my post, given to me by an old tech, when the equipment I was working on, which for some reason, kept zapping a particular 710 comparator IC whenever the CRT high power supply would randomly arc over due to faulty insulation.
Well my nickname is really Zapper, as shown on the bottom of my post, given to me by an old tech, when the equipment I was working on, which for some reason, kept zapping a particular 710 comparator IC whenever the CRT high power supply would randomly arc over due to faulty insulation.
thank's all for answer my question
i want make a transciver(transmiter and reciver) that give voice ( human speech) and code it whit haming and transmit (communication engineering )
i want do that and i want convert analog to digital for input of micro and the same IC for receiver that conver digital to analog
nyquist say fs(samoling)=2fi that human voice is 4kh so fs=8khz for Ic A/D & D/A whit this details need for this project.
and i use RFM12BP whit 115 kbps for tr and receiver
hamming code = same as checksum for u ensure the bit's receive true
i want do that . and i problem whit a/d and d/a sampling speed and free mode assembly shematic
sorry for my bad english typing man & thank's every body answer
Ok! For a start, how are you getting the sampled result into the transmitter...
thank u , i'm not pro in the electronic and when i read the RF datasheet whrited connect with spi of micro !!
pic ? microcontroller pic ?? and D/A IC in Xmega has D/A but i can not work with it and i want use IC
plz help TNX friend
you konw speed of sampling the ATMEGA16 ? i think 8khz but i read u can not use over the 4khz it's bad
You need a little help with your English.
thank u so much my friend
i read the article and i use that and i reach the Xmega that speed of sampling is 2000/000 sps & has DAC but i can't programing it so i use the https://www.moty22.co.uk/sd.php