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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (399 topics).
399 topics · 1962 messages
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ADAU1787 current consumption in software power-down when using the internal DVDD LDO
We are characterizing the power consumption of the ADAU1787 in a battery-powered embedded platform. During these tests, we observed a large difference between hardware power-down and software full-chi
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ADAU1701 self-boots and registers verify correctly, but Sdata_out0 (MP6) never outputs any data
Hi, i would need some help on my custom ESP32 + ADAU1701 schematic, i am stuck at an unusual issue and i cna't progress past it, please read below, will provide more info if needed, just say what that
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Does SigmaDSP perform SCLK stretching for timing sync with USBi?
After some reliability issues with SigmaStudio ReadBack (both EVAL and custom hardware, alike), I am looking at the USBi bus in SPI mode with a logic analyzer, and it appears that the SigmaDSP might b
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ad1938+adau1452 noise
Dear ADI staff: I designed a DSP board using AUAU1452 and AD1938, and controlled it using STM32F103RCT6 with a sampling frequency of 48K, using hardware mode, During testing, it was found that AD1938
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AD1938+1ADU1452 NOISE
Dear ADI staff: I designed a DSP board using AUAU1452 and AD1938, and controlled it using STM32F103RCT6 with a sampling frequency of 48K, using hardware mode, During testing, it was found that AD1938
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Adding a sub out for a powered sub
New here. A couple years ago I made open baffles, with full range and woofers. I am currently using a car audio line level converter to the woofer wiring to feed my subwoofer. I want to use a PCM5102
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Using S/PDIF Auxiliary Output Mode
Hi, I am trying to use the S/PDIF Auxiliary Output Mode for a slightly unusual result. Basically I am trying to bypass the use of an ASRC... A customer has asked if our product can accept AES3 input W
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Schematic review request for the ADAU1761.
Hi David, As I have posted in the wrong space (Precision Microcontrollers), Now I am posting in the sigma DSP section. Now I am replying to the answer mentioned in the Precision Microcontroller sectio
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TDM8 Connection on ADAU1467 Rev.B Evaluation Board (Brooklyn 3 + AK5578 Configuration)
I am currently evaluating an ADAU1467 Evaluation Board Rev.B and am having trouble getting the TDM connection to work correctly. If anyone has used a similar configuration or is aware of any important
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adau1452 + cs42448 memory problem
hello, i have a adau1452+cs42448 board that has been working wonderfully until now, recently it stopped "remembering" program with every power cycle. link compile download doesn't seem to do anything
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Adding ADC channels wth TDM
Following up on my previous threads. My goal is to add two channels of high quality ADC input to a configuration with the ADAU1701, I have built and tested circuit boards using the following schematic
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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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Just new to Sigma Studio and am programming a Dayton Audio KABD250 amp. With the optional back panel kit, they include a power switch. I'd like to know where in the circuit it should be wired in to avoid pops and noises, etc. Should it be wired into th
I am programming a Dayton Audio KABD250 amp. With the optional back panel kit, they include a power switch. I'd like to know where in the circuit it should be wired in to avoid pops and noises, etc. S
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Unconventional application of the ADAU1452 audio processor
I used an audio processor in a non-standard way for a metal detector. I want to be able to select a project (program) that will be loaded into the ADAU1452 from EEPROM by pressing buttons connected to
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multiple units in the same circuit
Hey Folks, this may some crazy, but is there any reason I could not use multiple 1701's in the same project? I picked up a handful of the little "tinysine tsa1700" project boards, I'm wanting to make
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Request for Review of ADAU1451 DSP Audio Architecture
Dear Analog Devices Support Team, I would like to ask for your support in reviewing the audio architecture of our system using the ADAU1451 DSP. System overview Host processor: Rockchip CM3588 DSP: AD
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Odd problem with LRCLK
Hi, we have a product that used an ADAU1452 DSP processor and we are experiencing an odd problem with the LRCLK that we are sending into and using as a reference for, the SERIAL PORTS. Firstly, I see
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ESP32 SPI control of ADAU1467 parameter RAM on EVAL-ADAU1467Z — writes not taking effect
I'm trying to control an ADAU1467 on the EVAL-ADAU1467Z evaluation board from an ESP32 microcontroller via SPI on the J1 slave control port header (the same header used by the USBi). Setup: EVAL-ADAU1
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TDM2 oder 8 channels
Hey together, one question. We know that it is possible to send 16 channels of audio via serial port 0/1 via a single SDATA pin (16 channels), via 2 SDATA pins (2x8channels) and 4 SDATA pins (4x4chann
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How to make a 10 band audio equalizer controlled by 10 analog pot, using an adau1701 and two CD4051
Hi, I want to create a 10-band audio equalizer (31Hz-16kHz) using the ADAU1701 and controlling it with 10 slide potentiometers. I want to read the potentiometer readings using the same DSP without an
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Read/Write to EEPROM does not work anymore, but selfboot does
I've built a custom ADAU1452 board with a Winbond W25Q SPI flash. I have used this board with no issues for the last 6 months or so but I had to reconfigure it and for some reason I can't write to the
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I2S vs TDM requirement for ADAU7118 with 6 digital microphones on RK3588
Dear ADI team, I would like to ask for clarification regarding the audio interface selection for the following architecture: Processor: Rockchip RK3588 (CM3588) Audio codec / DSP: ADAU7118ACPZRL Micro
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Request for Review of Audio Speaker Architecture Using ADAU1401
Dear Analog Devices Support Team, I would like to ask for your support to review the audio speaker architecture of our design and confirm whether the proposed concept is technically sound. System over
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Setting the audio serial transmitter and receiver ports as slaves to another clock domain.
We designed an ADAU module with two ADAU1466 chips. A 24.576MHz MCLK is supplied externally. An external microcontroller sets parameters and reads meters through SPI. I’m attaching a diagram to illust
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ADAU 1701 to 1467 connect
Hi! I have two 1701 boards I want to use to add additional analog inputs to my ADAU1467. I see I need to config the MP GPIO pins on the 1701 for serial data and clock. Can you give me a quick template