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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (21 topics).
21 topics · 143 messages
Filtered by: #aux ✕
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ADAU version that supports noise reduction
Hello everyone. I have a sealed plastic enclosure, 80 x 40 x 20 mm, with a 1.5 mm wall thickness, made of ABS plastic. I need to convert the front panel into a highly sensitive microphone. I used a pi
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Conditioning/filtering of noisy AUXADC input
Hello EZ, I have build a DSP using the ADAU1466. It has been working great for a while know. However, I have mooved it to a new case with a significantly longer wire run for the potentiometer that is
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i need help with a plan for Adau1467 BBE Sonic Maximizer
would it be possible with an adau 1467 to simulate the function of a BBE Sonic Maximizer with integration of the Auxadc latest sigma studio version thank you would help me a lot greatings from germany
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EVAL-ADAU1467Z Auxadc
hello need help how do i connect a potentiometer to an auxadc but where the other two pin Audio Signal Processors hardware adau1467 aux adc EVAL-ADAU1467Z SigmaDSP Audio Processors Show More
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ADAU1761 single-ended input gain amplifiers step dB resolution
Hi there. In our design we are using ADAU1761 with BF700 processor. We need to Increase/decrease ADAU1761 Input amplifiers gain (MX1AUXG[2:0] & LINPG[2:0]) with 1dB step resolution (-15dB > +6 dB). We
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Allow aliasing in AUX ADC (1451/1452)?
I'm using an ADAU1452 at 192kHz sample rate for a project. I'm aware the auxiliary ADC's run at 48kHz regardless of the DSP sample rate. If I try to use these to measure signals up to 96kHz, will this
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ADAU1452 evaluation board AUX ADC external control
Hi all, A quick question. I'm hoping to add simple push button, (or even try to repurpose the use of onboard pot's), control to my ADAU1452 evaluation board to provide switching of the following simpl
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ADAU1452 eval' board - AUX ADC ReadBack Values
Hi there, I've setup a simple SigmaStudio project to attempt to readback the values returned from the potentiometers on the EVAL-ADAU1452REVBZ, connected to AUX ADC 0 and 1. I want to understand the r
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ADAU 1452 Need help with the input selector and the MUTE button
I am an inexperienced user of Sigma Studio. 1. I ask you to help with a real-life example of a project with a switch between two inputs controlled via the AUX PIN switch button. 2. How to make the fun
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Reading Duty Cycle from ADAU1466 MP pin
I want to read in a signal to ADAU1466. I have this signal connected to either MP or AUXADC pin through resistor stuff options. The signal has the following four possible options: high low 1kHz square
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ADAU1701 PROBLEMS WITH AUX ADC
I have configured the input for an AUX ADC as the attached image, I do not understand why the audio played is very noisy, to have a discrete playback, it is necessary to set the control adc in SigmaSt
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ADAU1701 Auxiliary ADC for battery monitoring not working help me
Hi team , i am using ADAU1701 sigma DSP for medical device . The DSP functions are OK . I configured MP2 as aux ADC to monitor battery voltage . This alone not working i made the ADC configuration as
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ADC ADAU1978 TDM mode with DSP ADAU1452 - VR volume control THD issue
Hi all! I am trying multi-channel setting, My testing enviroment : ADC: ADAU1978, TDM mode (TDM16), DSP: ADAU1452, DAC: ADAU1962 (only one DAC) Volume control: Variable Resistor(VR) The TDM mode setti
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ADAU1701 AUX controlled "graphic EQ" possible?
Is it possible to design an eq with fix frequency and Q and make the cut/boost variable with an external potentiometer? I want to use the four aux analog inputs to controll some fixed frequencies live
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ADAU1702 hysteresis settings
I don't understand the auxiliary ADC hysteresis settings: FIL[1:0] 00 4-bit hysteresis (12-bit level) 01 5-bit hysteresis (12-bit level) 10 Filter and hysteresis bypassed 11 Low-pass filter bypassed S
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Aux ADC value settling time
Hi, I'm referring to discussion https://ez.analog.com/message/69629 I also try to get 5 input signals with 4 aux ADCs on the ADAU1701 by multiplexing one of them. The question is how long must I wait
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First value read by ADC can vary from chip to chip?
I'm reading an Aux ADC and then holding the minimum value with a slow release time. This has only been a problem on 1 out of 7 prototypes, but on that one, the value is held much lower than it should
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How to configure the input circuit?
Well here I am feeling like an utter fool but I really need to get this working. I get heavy distortion when I use my ADAU1701 and I'd dare say that the reason for this is that the input circuits para
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ADAU1701 Aux ADC Readback
Hi, I've got a system running in which a micro polls a readback cell in Sigma to read back the current level read on the Aux ADC. This is from an external microphone pre-amp and mic. I'm currently gen
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Audio Input through Auxiliary ADC on ADAU1701
Hi, ADAU1701 has four 8-bit Auxiliary ADCs. I need to feed audio input (8-bit resolution is OK) through one of the four Auxiliary ADCs and route it to a 24-bit DAC. How is the data format handled in t
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ADAU1701 AUX_ADC volume control won't zero output
Hi all. I'm having a problem getting the aux audio adcs to turn the level down to zero with the adau 1701. The best I can do is about -36db which equates to about 40mv p/p. Basically what I have is a