25 Threads found on edaboard.com: Digital Differentiate
Analog PLL has a Multiplier type PD while digital one has PFD, JK or XOR circuit.
Analog Circuit Design :: 27.07.2004 07:41 :: nathan :: Replies: 2 :: Views: 1475
Anyone can show me how to differentiate the Transistor NPN & PNP using Multi Tester (Analog & digital)? And how to ensure the Base, Collector & Emitter is correct using Multi Tester (Analog & digital)?
Thanks & best regards,
Keng Loong, Liew
Electronic Elementary Questions :: 19.10.2005 06:41 :: kengloong :: Replies: 3 :: Views: 4835
"digital transmission" in current context usually means that the data that is actually being transported is digital. All (except optical may be) transmission schemes are analog, in the sense a square wave kind of signal is never sent in a communication system.
So "digital voice" means that voice is first digitised before it is (...)
Digital communication :: 25.10.2006 01:39 :: bulx :: Replies: 2 :: Views: 1173
Hi friends!, I'm trying to decode FSK waveforms in a receiver using FPGA. At curr norm, I use "125MHz" DAC, but is clock at 40MHz only inorder to give 2 & 4 MHz sine at 20/10 samples. This is for the compatibility of 40MHz adc in RX module.
Data Rate = 2MHz,
F1 = 2MHz(20 samples for sine) 40MHz/20 sa => 2MHz
F2 = 4MHz(10 sa
PLD, SPLD, GAL, CPLD, FPGA Design :: 09.02.2008 01:20 :: xtcx :: Replies: 7 :: Views: 803
Think you have hit the nail on the head there - plus as some pins default to analogue at power up, its important you clearly define them as digital.
Microcontrollers :: 05.11.2010 05:36 :: wp100 :: Replies: 2 :: Views: 685
MOSFET or Metal Oxide Semiconductor Field Effect Transistor is basically a transistor, generally used for amplification of switching of Electronic Signals. It generally has four pins, Source; Gate; Drain and Body , but in some devices the Body and Sources are interconnected to make it three pins.
IC or integrated Circuit: by defination is manufa
Electronic Elementary Questions :: 28.05.2012 06:20 :: SUMIT_GAMBHIR :: Replies: 3 :: Views: 307
Suppose we are getting to different frequencies on 1 line. Is there any way in digital to differentiate between the two.
Its related to LFPS and SS data in USB3. How can digital differentiate between the two.?
ASIC Design Methodologies and Tools (Digital) :: 31.07.2013 04:30 :: e-bedlam :: Replies: 0 :: Views: 180
My opinion of IT courses in UK are that the topics are more business oriented . The IT students do get taught basic electronics and programming but not advanced topics such as OS Concepts, RTOS, Advanced Analogue and digital Electronics.
I'm not very sure how the IT courses are taught in other countries and if they are similar to the courses in
Microcontrollers :: 14.09.2002 02:07 :: eziggurat :: Replies: 1 :: Views: 2625
Interference is critical if the suspectibility of the receiver spec is violated by an agressor. That is common place for <130nm and long parallel lines in digital logic where the noise margins are 10-30% of the signal.
In analog designs the margins as well as the signals could be much lower. In this cases more complex coupling mechanism than ind
Analog IC Design and Layout :: 25.04.2005 04:08 :: rfsystem :: Replies: 4 :: Views: 996
it is mentioned as a problem in Schuam's sries meant for analog and digital communications..there it is mentioned as "it neither belongs to FM or PM"
i am perplexed...
Electronic Elementary Questions :: 10.02.2006 09:31 :: electronics_kumar :: Replies: 7 :: Views: 982
Im currently working on a digital oscilloscope with FPGA for a senior desing project. I was wondering if u guys have any suggestions on how to implement the triggering system. How to do the slope detection, and trigger level.
Can i use a differentiator and comparator. differentiate the input signal, and check if the: output is pos
Hobby Circuits and Small Projects Problems :: 20.02.2006 19:38 :: edy :: Replies: 1 :: Views: 888
op-amps are analogue devices.modern world is known to be digitally oriented.
still op amps are very famous.does this mean that there is a need for analogue circuitry for modern world.
Electronic Elementary Questions :: 03.03.2006 13:17 :: u04f061 :: Replies: 12 :: Views: 888
I have separated my digital power & ground plane and analog power & ground plane by few inductors.
Do you think what I have done is right?
The value for those inductors should be how much?
Thank you for your any suggestions.
PCB Routing Schematic Layout software and Simulation :: 20.07.2006 17:59 :: EDA_hg81 :: Replies: 10 :: Views: 1305
Technical Details of CDMA
CDMA which incorporates spread-spectrum technology works by digitizing multiple conversations. It attaches a code known only to the sender and receiver, and then dicing the signals into bits and reassembling them. The military loved CDMA because coded signals with trillions of possible combinations resulted in extremely s
Digital communication :: 27.10.2006 01:21 :: hamdard :: Replies: 0 :: Views: 4836
I found this paper, maybe can help you
Compact Antenna for Radar-Based Breast Cancer Detection
Yun, X.; Fear, E.C.; Johnston, R.H.
Page(s): 2374- 2380
digital Object Identifier 10.1109/TAP.2005.852308
check it here :
RF, Microwave, Antennas and Optics :: 17.01.2007 21:06 :: man_arief :: Replies: 2 :: Views: 898
Well this came from ATM (Asimetrical Transfer Mode) This transfer mode like MPLS allowed for QOS.
in CBR the ATM swich reservs a constant amount of data for the trafic,
VBR - variable bit rate there is no constant bit rate availoble to a switch, if the trafic is low a user can get more bit rate, and if the trafic is high less.
ABR - averidge bit
Network :: 13.03.2007 10:16 :: III :: Replies: 2 :: Views: 1689
PLL is analog, DCM is digital.
PLD, SPLD, GAL, CPLD, FPGA Design :: 22.04.2007 21:58 :: choonlle :: Replies: 2 :: Views: 3419
I would first differentiate by analogue and digital, though quite often boards today have both sections one one board.
digital board layout will depend on the rise times of the signals as well as the ultimate clock frequency. Rise time increases as frequency increases, but where possible restricting the rise time makes layout less (...)
PCB Routing Schematic Layout software and Simulation :: 29.12.2010 05:21 :: marce :: Replies: 2 :: Views: 1121
Designing a linear power amplifier its a more complex job than just increase the DC bias current.
During the design, parameters as Gain, P1dB, IP3, AM-PM, ACPR (if use digital modulation), Noise Power, etc, should be measured.
All of these parameters can differentiate a linear PA by a saturated PA.
Most of the PA transistors mentioned in the datas
RF, Microwave, Antennas and Optics :: 23.10.2011 12:40 :: vfone :: Replies: 3 :: Views: 632
VHDL is NOT a programming language. It is a description language.
Before you go anywhere near VHDL, you need to understand digital electronics.
PLD, SPLD, GAL, CPLD, FPGA Design :: 01.12.2011 06:17 :: TrickyDicky :: Replies: 7 :: Views: 1028
Effective motor driving circuits can cause nasty harmonics and high current spikes. Not always best environment for high impedance digital signals.
RF, Microwave, Antennas and Optics :: 17.12.2011 13:38 :: E Kafeman :: Replies: 7 :: Views: 3192
Hi, I am new to controllers. What is CMOS compatible input. Whats the need for it in controllers especially in digital electronics. pls reply.
Electronic Elementary Questions :: 27.02.2012 09:25 :: kenambo :: Replies: 5 :: Views: 322
It helps if you have a very stable external reference voltage for the ADC.
For the 10 bit converter, divide the ADC reference voltage by 1024 for the resolution, then multiply that by the ADC result for the value in volts.
for example, if the ADC returns 500,
Vin = (ADC_REF / 1024) * ADC_Result;
Vin = (5 / 1024) * 500;
Vin = 2.44 Volts
Microcontrollers :: 20.05.2012 09:55 :: btbass :: Replies: 1 :: Views: 441
Response time is a typical parameter to specify components with digital output, e.g. a comparator. It's no commonly used term for OPs.
Electronic Elementary Questions :: 13.09.2012 12:04 :: FvM :: Replies: 4 :: Views: 1096
Spectrum Mask is a requirement, and not a behavior of a modulation spectrum.
Not well designed systems can make the digital signal looks badly, and in this situation sometimes you cannot differentiate between modulation spectrum types.
RF, Microwave, Antennas and Optics :: 05.10.2012 07:10 :: vfone :: Replies: 4 :: Views: 313