Questions tagged [dac]
DAC stands for Digital-to-Analog Converter, and is used for outputting analog signals from a digital input, typically a microcontroller.
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Digital-to-analog-converter PCB: Ground plane cut or not?
I'm designing a DAC board and I'm not sure what would be the best thing to do regarding grounding, to minimize noise.
This is the approximate layout I have so far, with the system ground point (also ...
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Not correct reading in ADCs DACs integrated system
I made a ADCs board (AD7194) and DACs board (AD5689). Each DAC (separated ground) could output 0-5V, and Each ADC channel could measure 0-3.3V. I used a voltage divider network to turn 0-5V to 0-3.3V. ...
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How do I create a circuit to reliably calculate a range of unknown resistances?
I'm designing a low power circuit which serves to determine the unknown resistance across a 16 channel sensor. So far the results are bit subpar. The resistances are a function of a different applied ...
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Is this extra cycle before the MSB a common thing with serial bit timing?
The products that this is specifically around are the Pmod I2S2 which uses the Cirrus CS5343 ADC and CS4344 DAC. It is plugged into a STM32F407G-DISC1.
Now I am having some trouble figuring out ...
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Looking for feedback on audio schematic [closed]
I'm making an mp3 player and I'm looking for feedback on the audio side. It takes an i2s input from an esp32(not in this sheet), and outputs to a headphone jack. This is my first audio project (...
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Why wouldn't one use a DAC for an RF transmitter?
I'm wondering what would be the reasons that someone would use something other than a DAC to generate IF signals before they're mixed up to RF. With how fast modern DACs can be (30 MSPS from some ...
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Why does input data rate reduce with higher interpolation factors in interpolating DAC's
I am reading the specs of AD9152 and not entirely sure on how to interpret some information.
the diagram below shows that max input data rate (Which I interpret as the rate at which the DAC can accept ...
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Please explain why datasheet says to connect the feedback resistors in a particular way
The datasheet for the AD667 DAC shows how to connect the output to internal feedback resistors in different ways, in order to get different output voltage ranges.
For output range of 0 to +5 V, it ...
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Darlington control with Op Amp and DAC
The purpose of my circuit is to control(current) a servo motor with the 4096 steps of the DAC MCP4725. Currently this circut is not turning on the NPN Darlington, I don't know why that.
The DAC is ...
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Best place to add DC biasing
I'm working on a circuit where I have a CS4344 audio DAC feeding into a LM324 inverting amplifier that uses 1.2v as a reference voltage.
I'm staring with the example circuit shown in the CS4344 ...
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Reading ECG wave data from .dat and .hea file from SD card with Arduino DUE to produce it on DAC pin
I am trying to produce an ECG wave on the DAC pin of the Arduino DUE.
Here are my setup details.
SD card is attached to Arduino DUE with SPI connections.
I have 2 files (.dat and .hea) of ECG data on ...
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Why do high speed DACS have I/Q
I am working on an application which required D to A conversion of two different high speed signals. The DAC I am using from TI has many functions related to Q/I input signals specifically. I would ...
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Noise in audio project with ESP32
I built a very simple web radio based on a PCM5202 module (purple with 3.5mm output jack), an ESP32, and this github project. Here is the schematics (forgive the crudeness)
simulate this circuit &...
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DAC errors and voltage mapping (0.3-3v to 0-2.7v)
Using MSP0G1505 MCU. It has a inbuilt DAC. I thought it could give me 0 to vdd as output but it seems it can only give 0.3 to vdd-0.3 as output. This happens because of the offset and gain errors. ...
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Controlling voltage of a device (Peltier cell) without PWM and with high current (max 5 V, 1 A)
I would like to be able to control the power of a Peltier cell, the TEC1-04901, (5 V, 1 A) in such a way as to control its temperature. I have already tried using a PWM control using a transistor ...
