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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (41 topics).
41 topics · 197 messages
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Thermal Parameters for the thermal analysis
Hi team, In our development project, we are using following ICs and we need to do the thermal analysis for the PCB. For the analysis, we require the θJA (°C/W), θJC (°C/W), θ
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Using additional ADAU1466 core for added DSP resources for higher order ANC
Hello again, I'm back with a new question. I've attached a block diagram of what I'm attempting. basically I'm trying to use an additional ADAU1466 core to add DSP resouces because I want to use longe
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MFxLMS growth
Hi, I'm not quite sure if this is the right place to put forth my question, if in case it's not here please do direct me to where i can find answers to my question. I'm currently working on an ANC pro
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How to set sample rate in SS+ like done in 4.7?
I'm sure I've missed something obvious, but a search of the Wiki/docs (with "sample rate"@resources:tools-software:sigmastudiov2) did not turn up anything. Where has this from 4.7: gone in SS+? I have
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Process each channel in a TDM4 input stream
Hi, I stream TDM4 signal to ADAU1452 sigmaDSP through SDATA_IN0. I want to process each channel from this TDM4 signal (Filter and maybe more). How can I do it? When done processing each channel, I nee
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Can I use this circuit to use GPIO to control MUX ?
I want to use a GPIO to control a MUX in DSP. My GPIO connects to a hardware switch, when switch to SRC1 , it pulls high , when switch to SRC2, it pulls low. Then , I use this curcuit to control MUX i
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ADAU 1467 Bush Button Volume Control with GPIO
I am using the EVAL-ADAU1467Z and I am trying to make the 'PushButton Volume, Mute' block work. Schematic: Multi Purpose Settings: I use the MP pins 18 and 19 of the eval-1467 board. The push buttons
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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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How to correctly convert GPIO input (23.5) to 28.0 number format?
Hi, i'm a bit confused about how to use a GPIO-input with the Index Selectable Slewing Mux. The GPIO-Input outputs the values 0 and 1 in 23.5 Number format but the Mux awaits the values in 28.0 format
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Multirate / hierarchy board and sampling rate error
Dear, I'm doing an audio DSP with filters, compressors etc. with SIgma Studio v4.6, on the ADAU1452. At first, I had a script entirely written on the main board, with multirate processing and it was w
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UpSampling algorithm version 1.02 broken
I have just tried the latest version (1.02) of the Upsampling algorithm with SigmaStudio 4.6 and an ADAU1452. I am running at 96kHz sample rate and downsampling 16x, then Upsampling, with no filtering
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Problems with EVAL-ADAU1452RevBZ in TDM mode
Hi, I'm trying to develop a multi-canal system with ADAU1452 in TDM16 mode that communicates to ADAU1966A in Standalone Mode (TDM16, Slave serial audio interface and 256 × Fs ). I control the DS
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Upsampling / Downsampling bug?
Hi, So I was trying to troubleshoot a project, and stripped it down to complete barebones to determine the issue. [Using an EVAL-ADAU1467Z Rev B board] Starting a completely new project & dragging in
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ADAU1450 multipurpose ports MP0/1/2/3/6/7 LED drive?
Hello all, The datasheet of the ADAU1450 states that digital output ports cannot be used to drive a LED (page 8: $Electrical Characteristics, Digital Input/Output). Nothing is said explicit about the
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Downsample - Extract only odd / even samples
Hello! I have the following problem. I have an 96k input signal that I want to send it through a 48k domain. This means that I need to send two packets of data in 48k domain. In order to do that, I ne
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ADAU 1452 Multirate instruction cycles and program overrun
I am investigating the Multirate features using Sigma Studio 4.4 and an ADAU1452 and I have some questions. I hava a project running at 48kHz, jam packed with processing. I have included a section usi
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ADUSB2Z 1.4 Multi Master Programming Problem
Hello, we got a uC that communicates periodically over I2C with one ADAU1452 and we have the ADUSB2Z programmer on the same I2C. This causes problems when programming the DSP because two I2C masters a
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Downsampling/Upsampling blocks up to 64
Hello, I have a specific processing structure where I need to work at 750Hz (48k stream downsampled by 64). But because the downsampling/upsampling blocks are maximum 16, I do 2 downsampling/upsamplin
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how to impliment 4*1 multiplex in ADAU1701?
hi, i am using ADAU1701. we have four different signal with different frequencies. i want to send only one wave to output by using two switches selection. Just like 4*1 multiplexer with 2 delectable l
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ADUA1452 Serial Input Ports
Hello AD, I am wondering if you can help me configure my ADAU 1452 Eval board to accept multi-channel audio through the serial input ports for I wish to bypass the ADC? I see from the ADAU1452 data sh
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One USBi, two 1701 with separate eeproms?
Looking for advise on feasibility of a system with a single USBi interface and two 1701 SigmaDSP's each with their own EEPROM for self boot. I would like to have the ability to have a single Sigma Stu
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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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[Bug Report] ADAU145x multi rate problems
SigmaStudio version 3.13 Windows 7 Pro 64-bit Service Pack 1 I am seeing some really strange behavior with the new mulitrate blocks on an ADAU1451. I created a small project to show the issue: The Sig
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Where are the multi rate blocks?
I see other posts of people using the multi rate blocks for the 145x, and they are also listed here. I have the latest version of Sigma Studio installed (3.13), but I don't see the multi rate blocks a
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decimation with adau1701
What I'd like to accomplish is to clock the ADAU1701 on-chip ADC and DAC at a 96k rate and decimate/interpolate by a factor of 2 to run all the signal processing at a 48kHz rate. The goal is to use th