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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (12 topics).
12 topics · 39 messages
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ADAU146X - Low-Power Mode and Wake up from digital audio signal
Hello, I am trying to figure out a standby/sleep scheeme for a DSP/amplifier board featuring the ADAU1462/66. To wake up the board via my ADC its pretty clear, since it has a threshold based audio det
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alternative to AD8608 op amp for active filter design - ADAU1701
Hi all, I've been looking to implement an active reconstruction filter on the DAC output of my custom ADAU1701 however the op-amp recommended in the datasheet seems to be end of life and highly priced
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Adau1701 dac output passive vs active.
Hi guys, I'm not sure which type of adau1701 output I should use (Passive vs Active), what are the advantages of one over the other, not to mention the cost? When using AD8608 or another operational a
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How to make really slow filters on ADAU1466
For the thermal simulation (and limiting) of one of our products we need a 0.5 mHz filter to track a thermal time constant of something getting hot over time. I've tried an IIR filter with single orde
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ADAU1361 LAUX and RAUX sampling
Hi, Could you confirm if the LAUX And RAUX inputs can be simultaneously ADC processed as well as played through LHP and RHP ? If not, how much would be lag in between the input and output?
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''Discrete'' RMS Table block for specific needs/settings (IEC 61672 fast and slow time weighting)
Hi All, I need the functionality of the RMS table block (Level Detectors/Lookup Tables > RMS Table > Range (-93 to +3 dB) > RMS Table), but for my application the available dB/s range and precision is
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Audio processor recommendation for megaphone project
Hi, We are working on a low-power battery-operated megaphone/bullhorn project (purpose is to amplify a user's voice). In terms of the audio flow, the user's voice will first be captured by 1 - 2 digit
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What is the Adjustable Low Pass Filter "Step" mean?
Hello guys, Can someone help me to understand what is the " Adjustable LPF " function block which has one parameter call "step", what is this actually work at? I am using ADC to adjust the Low pass fr
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ADAU145x power down
Can we use the START_CORE register to enter a low power state with fast power up? Please advice how to enter power saving mode with fast recovery - with no re-booting? Audio Signal Processors adau1451
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Very low frequency/slow response filters
I would like to make a system that responds very slowly to an RMS measurement, like rising to full value over several minutes. Setting the RMSTC to 1 isn't slow enough, so I thought I could follow it
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RMS Table range
Hello, I'm experiencing some unexpected results from a RMS Table block inside a Sigma (3.1) DSP project for 1701. What is the table output for signals exceeding +6dB RMS amplitude? Is it the clipped t
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ADAU1701 minimum signal processing delay
Hi! I have a question: I would like to use the ADAU1701 for a simple multiband equalizer processing of a stereo signal. I need 2 different equalizers for the signals, and I need 2 analog inputs, and 2