# Questions tagged [digital-to-analog]

A digital-to-analog converter (DAC, D/A, D2A, or D-to-A) is a system that converts a digital signal into an analog signal.

8 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
0answers
20 views

### What is the pipeline DAC tollerable offset from plot

I have analyzed the circuit in full extent as shown bellow. I know that I showed imagine two-stage back to back and see "which input could handle both". Could you please show how exactly I ...
0answers
22 views

### Resources on multiplexer and demultiplexer?

If I search multiplexer in Google and start reading, I find sources that describe a multiplexer as a device that selects between several analog or digital signals, then outputs a single signal. For ...
0answers
26 views

### When to choose ZoH over Tusin method to transform continuous to discrete

I have a continuous transfer function here: a 2nd Order Butter Worth filter $$\frac{1}{6.416\cdot10^{-11}s^2+1.33\cdot10^{-5}s+1}$$ How would one choose which discrete method to use to transform ...
0answers
161 views

### Why do IQ Impairements, Quadrature Skew and DC offset have these geometric effects on the constellation?

I'm studying telecommunications, and would like to be sure to understand the maths behind these effects. For IQ Imbalance and DC offset, it seems pretty clear why we observe a rectangle shape or a ...
0answers
21 views

### How can we do finite-step signal sampling in practical?

The signal has infinite length. We cannot sample it with a whole length. How can we truncate a infinite signal and sample it in finite step? And then how can we analyze it.
1answer
120 views

### confusion between frequency and amplitude in digital to analog and vice versa conversion

bandwidth is defined as the difference between the highest frequency and lowest frequency. amplitude is the distance between the, let's call it a crest and a trough, in a wave. cycle is the time per ...
0answers
81 views

### Why do we use conjugate transpose IFFT in OFDM

I have a question regarding the OFDM and using the conjugate transpose of vector (matrix). As you know, if we have a block of data,let's call it $X_n$, consisting of $N$ data symbols, we should ...
0answers
397 views

### DAC ADC for BPSK modulation

I have written Matlab script for BPSK modulation. The way my code works is as follow: series of 0 and 1----> NRZ data (continuous rectangular pulses with amplitude -1 and 1)--->multiply by carrier----...