EngineerZone Forum
Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (25 topics).
25 topics · 112 messages
Filtered by: #digital ✕
-
Controlling DS1881 Digital Potentiometer from ADAU1463 for Analog Audio Volume (No External MCU)
Hi everyone, I'm working on a prototype board that uses the ADAU1463 DSP, and I’m experimenting with controlling the volume of an analog-only audio path (i.e., the signal does not enter the ADAU1463).
-
Seeking Help with AA-AP23123 Wondom DSP for Home Theater Setup
Hello everyone, I'm reaching out for some guidance on using the AA-AP23123 Wondom DSP, which is an unbalanced 2-In, 4-Out ADAU1701 DSP preamp with a 2-way digital crossover. I’m looking to use it simi
-
ADAU1787 digital mems microphone - no I2S clock
I have two questions about the ADAU1787 dev kit: I am connecting digital MEMS microphones to use as the ANC mics. It is the Infineon IM73D122V01. Unfortunately the Dmic input is not working. I cannot
-
Not able to hear output sound using NR example for ADAU1467
Hi everyone I want to use ANC feature using ADAU167 I have bought PDM mic for input. So at first I was testing with single mic and pair of headphones Here is my setup PDM mic connections CLK -> BCLK_I
-
EVAL-Adau1787Z design error?
I was trying to use connectors J6 or J7 to connect to the digital microphone inputs on the ADAU1787 eval board. After having no success, I eventually connected the microphone to J5 which worked for me
-
"ADAU-1452 serial out to AD9957 Blackfin input" again
Ken.M said (on Jan 2, 2018 11:54 PM): BCLK_OUT0 --> PDCLK LRCLK_OUT0 --> TxENABLE SDATA_OUT0 --> SPORT I-DATA (I input) SDATA_OUT1 --> SPORT Q-DATA (Q input) BCLK_OUT0 is master. LRCLK_OUT0 is master.
-
Digital Mic input clock domain on ADAU1452.
Hello everyone, I have a question about clock domain for digital mic input. I will use a distant microphone on a measurement system and wish to us a PDM Mic to optimise cable costs (2 pairs of "numeri
-
Getting digital microphones to work on EVAL-ADAU1777Z ?
I am trying to get a digital microphone input to work on EVAL-ADAU1777Z. I have successfully brought up examples using 4 analog input channels through the ADCs. I have some digital PDM mems microphone
-
ADAU-1452 serial out to AD9957 Blackfin input
I need to format I/Q data from the ADAU-1452 as two 16-bit serial inputs to the AD9957 QDUC operating in "Blackfin Interface (BFI)" mode. The I and Q bits from the ADAU-1452 need to arrive at the AD99
-
ADAU 1452 digital input methods?
Hi Everyone I am working on the ADAU 1452 evaluation board. How do I get more than two channels of digital input to this board for signal processing? what kind of connection available? I am wondering
-
How can I get around 1401a only being able to output either TDM or i2s
I am working on a range of products that use the ADAU1401a along with a DAC so that we can output 6 channels of analogue audio. We are using intent on using a specific DAC that ONLY SUPPORTS I2S INPUT
-
ADAU 1701 external ADC with TDM
Hello, i my new project i want to use an external ADC to use some more audiostreams and also to control some aux adc functions. Because i need most of the gpio pins i want to use an 8-channnel time de
-
ADAU1977
Dear Support, I look for ADAU1977 Digital volume control information at D.S but not found pls advice Thank you in advance Miguel Liber
-
analog&digital together input problem
Dear experts: Can I use mixed input with ADAU1701 ? That is mean analog & digital I2S input to 1701 together. In my project the output is analog. When I setting the I2S input,there is no signal output
-
ADAU1772 Filter Response Issues
I designed a 8th-order filter in Matlab and transform it into the SigmaStudio.In order to get the 8th-order filter I use four 2nd-order filter as follows. The response of filter get from the Probe hav
-
ADAU1701 Filter Latency
hi guys I need your help. I designed a digital filter by Matlab and load the transform function parameters into the ADAU1701 board.The curve simulated in sigma studio is right，but I test the board use
-
Digital input on ADAU1772
Hi all, I am working quite successfully with the ADAU 1772 as controller in a fast loudspeaker feedback system. Up till now I only used the analog inputs but I want to use a digital input to be able t
-
ADAU1701 Setting up a serial output with SigmaStudio?
Hi guys, I want to create a serial output from the ADAU1701 to drive an S/PDIF Transmitter, but I have some doubts. The ADAU1701 will be working as the Master at 192KHz. I thought that digital data ju
-
Using Serial Output Ports in 32 bit mode on ADAU1452
Hi there, I cannot find out how to use the Serial Output Ports in 32 bit mode on my ADAU1452. In the ADAU1452_1451_1450 datasheet (Rev.C), it is written on page 61 : Also on page 112 : I have SigmaStu
-
Trying to set the proper registers for Dig Mic input with the ADAU1761Z eval board
I am trying to do something simple, attach a INMP421 (formerly AD's microphone) digital mic to the ADAU1761Z board. It should be simple, but I can't seem to make a correspondence between the documenta
-
Digital pot with SigmaDSP?
Hello everybody! The thing is I use several pots, connected to auxiliary ADC inputs in 1701 to control various volumes etc. Pots in general are quite big, so I am thinking about using AD5116 and two b
-
ADAU1761 setup for digital microphone
I have setup an ADAU1761 to work with a digital microphone ADMP421. The microphone input signal works fine and I can route it to the serial port or the SigmaDSP processing unit. However, I am still wo
-
Common Inter-IC Digital Interfaces for Audio Data Transfer
Jerad Lewis from the ADI MEMS Microphone Group has written a new technical article about selecting an appropriate digital interface for audio systems, particularly those involving microphones. The art
-
digital In to EVAL-ADAU1701
Hi everybody, I'm trying to interface an eval-adau1701 board with an external SPDIF receiver. According to the documentation of the board I'm using header J7, where all digital signals can be connecte
-
How can I use a SigmaDSP codec with digital microphones?
I want to use digital microphones in my application. What SigmaDSPs support this interface and how do I connect them? Audio Signal Processors microphone digital adau1781 SigmaDSP Audio Processors adau