Recent content by tnecniv

May i know what is the use of the npn and pnp bjt for my schematic? can someone please advise. Thank You

May i know what is the different between setting low or high for /P of eeprom 27C2001

i was told by another person from another forum that the lm386 has an internal feedback so there was no need to connect the Rfb from the Dac to the power amp. i found another schematic from one of seniors(AZPDAC) and most ppl are using it can u tell me what's the difference between mine and...

I apologize for lack of clarity. The pins of the ICs are located beside the name.( i tried to put on the wire but i couldn't figure out how to do it.) we are able to access the eeprom. yes the D-latch does set the address to the eeprom. The ALE works fine as i am able to access data from the...

i just tried sending certain values to the DAC. I gave a value that increases from 0-255 and loops , which gives a saw tooth waveform after it goes thru the dac. Am i right to say this? If i am, i do not see any saw-tooth on the oscilloscope. is there anything i need to take care of (eg delay...

Thank you. i will give it a try now

can the PLL achieve phase lock and not frequency lock? and can the PLL achieve frequency lock and not phase lock? Please advise. Thank You

my apologies for not indicating earlier, all the address bits of the eeprom are wired to the microprocessor data/address lines, they're not shown in the diagram so that it isn't so messy

thanks for the reply and sorry for double post. i have attached the dac pdf file below. components i am using are: DAC - DAC0832LCN 2Mbit EEPROM - M27C2001-12F1 amplifier - MIK3860825/2 8bit Latch - SN74HCT573N AND Gate - MM74HCT08N speaker is 8ohm speaker please advise. At a lost bcos not...

I have done the hardware implementation using the planned schematic below. but somehow no sound seem to be able to play from the speaker except some noises. Anyone can help me check if something is wrong with DAC shematic...

http://picasaweb.google.com/lh/photo/F1hFT0SaSpFdLqSvFA-BHA?authkey=Gv1sRgCMGC37jJtMLiXQ&feat=directlink Image : [PLAIN][PLAIN]http://picasaweb.google.com/lh/photo/F1hFT0SaSpFdLqSvFA-BHA?authkey=Gv1sRgCMGC37jJtMLiXQ&feat=directlink How do i use mesh analysis to find the current of RL? can...

i am trying to find the nearest point to regression line Having found the regression line, i will need to figure out the point that lies closest to the regression line. Thanks in advance

i need to calculate the closest distance of the point that lies closest to the regression line for my programing but i am not sure what is the formula. maybe someone can help me out here? thanks in advance

what is wrong with my code that i keep getting this error "error C2440: '=' : cannot convert from 'double' to 'double *'" i am new to c and very weak in pointer. #include<stdio.h> //Function Prototypes// int read(double pointco[][2]); void obtainStatistics(double pointco[][2],int...

The higher the intensity of the light we will get a higher stopping potential. Why is that so? is there any theory and formula to justifiy this behavior? How is wavelength affecting the intensity of light? Please advise. Thank You