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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (31 topics).
31 topics · 137 messages
Filtered by: #sin ✕
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Generate a single pulse with ADAU1761 and Sigma Studio
As I'm a new user, Hi Everyone! I hope you can help me with my problem. I have the EVAL-ADAU1761Z board and I need to generate a single square pulse and send it to HP Out. The pulse has to be 100µs an
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ADAU1701 IIS input 192Khz signal to enable filter, DAC playback has noise
Specific operation description: As shown in the schematic diagram above, currently only one General 2nd filter is added, set to hpf and 60Hz corner frequency. Set the sample rate to 192K and the DSP c
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ADAU1701 and multible i2S inputs
Hello again, I mangaed to get a APM2 from wondom (ADAU1701) up and running with a PCM5102 DAC from aliexpress and a WM8782 ADC from Audiophonics. This is all described in detail here: ADAU1701 as mast
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ADAU1401 with PCM5102 DAC, BCLK missing
UPDATE: My scope was not good, later I managed to measure properly. DATA, LRCK, BCLK frequencies+voltages from the ADAU ok. But maybe i found what cause the issue: PCM5102 voltage pins: - pin 1 CPVDD:
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active two-way speaker with 1701: help for loudspeaker management and protection
Hi all, I built an amplifier module for an active two-way speaker with powersoft digimod 1500. I would like to create the firmware to better manage the speaker by protecting the speakers so that they
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ADAU1452 Slave Microcontroller port & USBi
Using a Teensy 4.1 to control ADAU1452, so the tutorial written for the Teensy 4.0 is really helpful, thanks. My workflow is to develop and test the Sigma Studio design and use a USBi interface to loa
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Sin and Csin on ADAU1452 and voltage controlled PEQ.
Hello, I am trying to implement voltage controlled PEQ. However, I have tried use State Variable Cell, it don't work fine. I use 8.24 Q=1, f=0.255 with Sum with original signal. It works not as good a
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Phase modulation with ADAU1701
I need to design a sinusoidal VCO with very deep phase modulation (multiples of 2*PI range). The VCO block under Sources/Voltage Controlled doesn't have phase input, hence I hoped to use trigonometric
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Momentary Button Sinus Push
I would need a method to connect a momentary button that plays a sine tone but never as long as the button is pressed and automatically stops again Audio Signal Processors button SigmaDSP Audio Proces
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Single Level Detector in ADAU1452
Hi, I use Single Level Detector to read level in my program. I find that the data from 1452 is 4 bytes which doesn't contain the sign bit, so I think it's not 8.24 format. I have the following questio
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Run SigmaStudio & USBi on single board computers
Hello! Very simple question: can SigmaStudio & USBi work on Windows 10 single board computers like DfRobot LattePanda or Udoo Bolt? Thank you Omar usbi sigmastudio singleboardcomputer
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ADAU1777 SINC Filter Characteristics?
ADI, We are using the ADAU1777 CODEC for our audio implementation program. We have enabled the 4th Order Filter registers as seen below: These are registers 0x1B and 0x1C set to 0x00. We have plotted
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EVAL - Adau1467 schematics
We've bought an EVAL-ADAU1467Z for the development of a professional audio processor. In the related document UG-1134 schematics I don't find the codec section in particular the schematic of U3 (AD193
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adau 1772
Hello everyone! we are currently designing a new product, based on ADAU 1772 audio processor. We need to measure RMS value of the signal for at least 0.05s. We trued the Single Level Detector (SigmaSt
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ADM811TARTZ WHITH POWER FAIL
ADM811TARTZ is perfect as Logic Low RESET for ADAU1701 and I use it in different hardware. I have to modify a hardware with on board ADAU1701 and I need an IC identical to ADM811TARTZ but with integra
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DC coupled input on ADAU1761
Hello there, is it possible to use a DC coupled input on the ADAU1761 in a single-ended input configuration? Specifically the line input pins LINP, LINNP, RINP, RINNP ? I'd like to be able to measure
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Send an address with I2C according to a specific voltage value applied to an ADAU 1701 DAC
I have to read 5 different voltage values on ADC3 of DAU1701. I thought I would use a VCO as an attached figure and then convert the frequency into a specific address corresponding to each single freq
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Generating overtones with fixed phases in SigmaDSP processors
Dear colleagues! I would like to share my experience in generating overtones (harmonics) of the sine tone with fixed phase relationships in SigmaDSP processors. For example if we need to generate sine
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Adau1701 noise (tone) issues
Hi, I have made several prototype boards with the Adau1701 with external ADC/DAC solution (loudspeaker X-over). 1 thing that keeps giving issues, is (too much) noise and more specific a single tone (1
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EVAL-ADAU1452MINIZ load from microcontroller
I'm having trouble loading the DSP on a EVAL-ADAU1452MINIZ board using our microcontroller. The code is stable and ported from our ADAU1701 target hardware, with the changes required for the ADAU1452.
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Need for an oversampling block in Sigma Studio
Hi, during my activity in this post, I experienced the need for an oversampling block in Sigma Studio. The problem arise when you model non-linear static transfer functions inside the dsp for example
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ADAU1701: external frequency change detector
In my design (ADAU1701 self-booting) I have a switch that selects sample rate by changing an external oscillator's frequency. I need to generate a reset when that switch changes so that -1701 can load
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Using the ADAU1700/1701 DSP for Radio Communications
We are currently working on a multimode radio transceiver and one of the functions we wanted to add was DSP primarily for audio signal processing on SSB receive. This in reality is a low intensity app
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ADAU1761 MIC input single Ended Or Differential?
I am confused a bit about the inputs to the PGA. (Figure 33. Stereo Differential Microphone Configuration) ADAU1761 pdf, shows one side of the MIC grounded at the input of the circuit. Seems that just
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Wave Sources + Value Cross + Pulse Count... What's the Freq?
Hello, In the attached project something is happening that I cannot understand... Why counter is growing by 1 unit approximately every 8 seconds? I expected it to grow by 2 units every second, since t