Tagged Questions
2
votes
2answers
61 views
What is reference voltage in a D/A converter
When I searched on the internet what I got as an answer for the above question is that the reference voltage means the highest voltage tha D/A can output.
But my lecturer at college did a calculation ...
-2
votes
1answer
228 views
DSP with ADC DAC SPDIF IO controlled with Microcontroller via USB
I'm looking for a board to process live music (sub-millisecond latency if possible). I'm thinking of a layout like the following:
So there are a few DACs and ADCs, S/PDIF inputs and outputs and a ...
12
votes
4answers
477 views
What is a one-bit ADC good for?
I have recently heard of the concept of a one-bit ADC, and have seen it implemented in the context of a sort of digital-to-analog converter (oddly enough), and I'm wondering, what is the point? Why ...
0
votes
1answer
58 views
Voice playback IC
I was looking for cost effective voice playback IC and came up to ISD 1700 series. Another brief datasheet is here. I don't believe with the same footprint and only for 3-4 bucks I can get up to 16 ...
6
votes
1answer
267 views
Adjusting offset (and possibly gain) of ADC preamp OPAMP with DAC
I am designing simple 200MHz scope for use with FPGA board and came up to idea of software adjustable offset and gain of input preamplifier.
It is using TI ADC08200 and since I am not much ...
2
votes
2answers
415 views
Interfacing ultrasound receivers and emitters with a microprocessor
I have bought ultrasonic receivers and emitters to play with (see datasheet here). I also have an STM32 processor devkit with DAC and ADC pins readily available.
How should I connect the ultrasonic ...
3
votes
1answer
114 views
How do some SAR ADCs allow the input range to be 0 to 2xVref?
If the capacitive DAC on the ADC uses Vref, would it not output a signal from 0 to Vref to the comparator? How would the comparator work if the input signal is greater than Vref since it would always ...
5
votes
1answer
438 views
What does “limit cycle” mean in delta-sigma modulator?
Could anyone explain limit cycle related spurious tones? It is stated that a higher order modulator is better than low level one because of limit cycle related spurious tones, but I don't have picture ...
-2
votes
2answers
716 views
Principal of Analog to digital converter(ADC) and Digital to analog converter(DAC)
Analog to digital converter is one that converts analog output form sensors to digital one what are basic principal of Analog to digital converter(ADC) and the opposite of one that takes digital input ...
2
votes
1answer
1k views
ADC and DAC code for MSP430
I'm doing a DSP project using the MSP430. I want to take an analog signal and convert it to a digital output using a microcontroller attached to an ADC on a DSP board. How would I program this in C?
...
2
votes
5answers
1k views
How to sample audio at Nyquist frequency with MSP430F5438?
I want to:
Input an analog audio track
Using the microcontroller ADC, convert it to a digital output
Then have the microcontollers/boards timer sample the data at selected intervals
Resample the ...
5
votes
4answers
2k views
High Quality Audio ADC and DAC with Embedded
I am starting work on a project where I want to do some DSP using an embedded solution ideally with very low latency as it will be in a real time environment. In addition I want high quality, ...
