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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (36 topics).
36 topics · 114 messages
Filtered by: ADAU1777 ✕
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PLL lock issue on ADAU1777
Hello, I have a problem with the ADAU1777 DSP mounted on a PCB. I am unable to write to certain registers, namely DAC0 mute and DAC0 enabled. I have seen that this is because the DSP's internal PLL mu
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adau1777 crack noise with dac_sdata fixed value
Hi, ADI I'm using the adau1777 to do the noise cancelling project. Now, we are blocked by a carak noise problem from one of the speaker with a fixed dac_sdata value. In my schematic design, two pieces
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Regarding the memory of the ADAU1772, ADAU1777, and ADAU1787
Hi ADI, I would like to know the memory size of the ADAU1772, ADAU1777, and ADAU1787, or how many Gen filters can be written into the IC from SigmaStudio. Currently, I can write 80 Gen filters into th
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cannot found ANC filters in sigmastudio schematic filter sections
i'd like to develop my ANC algorithm on adau1777,however ,i noticed that there is a few filters in adau1777 schematic filters section. is there any solution to make me finish my ANC project... i notic
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DSP improvements since the adau1761
I am familiar with the adau1761. I am curious if there are newer alternatives for this chip, and if they would offer benefits or more options solely in regards to noise suppression. For example, the a
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ADAU1467 Eval Board I2C Programming
I'm working with the ADAU1467 Eval board, trying to set it up using a microcontroller through I2C. I've programmed it through Sigma Studio using I2C, and it works; sound starts playing through the spe
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ADAU1772 vs ADAU1777 vs ??
We have been evaluating the ADAU1772 for some time now and had the need to find a smaller package preferably just a dual DAC with adjustable output level. Boom I come across the ADAU1777, which seems
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Sigma Studio "Add" block creates issues on post filters
Hello, I am experiencing a problem when I try to implement a crossover network at the output of an ADAU 1772/1777 to use headphone output 0 as a tweeter and headphone output 1 as a woofer for dual dri
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ADAU1777 SigmaStudio v4.6 xml output register 78 flaw
Hello, When I select a samplerate of 384kHz in Sigma Studio (v4.6 of v4.7) for the ADAU1777, the xml outputfile contains the wrong settings for register 78 (0x4E). It contains value 0x00, indicating a
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ADAU1772 - Output Noise level in balanced vs Single-ended
Hi, I am using the ADAU1772 codec to drive low impedance headphones (8 Ohms) for ANC and therefore I need an external amplifier between the codec and my headphones. This additional gain raises the noi
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ADAU1777 I2S output
Hello, When I use adau1777 serial output ports, I encounter some confuse problem. When I configure I2S SAI as below. the first channel data miss. When I configure the LRCLK mode as Pluse, others is sa
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Integration of ADAU1466 and ADAU1777 for Feed Forward Active Noise Cancellation ANC
Hello, After several hours of searching through these forums for solutions for implementing a feed forward ANC system I have come to a few conclusions. 1. ANC Algorithm can be implemented using SigmaS
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ADAU1777 AEC with DSP
Hello, we are currently redesigning our voice control unit and for that we need a IC that can transform a mic signal and use it with a digital audio signal to do AEC filtering. I've noticed the integr
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ADAU1772 Sigma TCP
HI, will there ever be a TCPIP connection driver for the ADAU1772/1777? Can there be a generic TCP driver for all SIGMA DSP devices? kind regards huegene adau1772 Integrated/Special Purpose A/D Conver
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ADAU1777/ADAU1772/ADA1372 initialization when an external oscillator is used
I am confirming how to start and initialize the ADAU1777, ADAU1772 or ADA1372 when an external oscillator is used. In each data sheet, I can find following description. Regarding it, please let me ask
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ADAU1787 Phase vs Frequency specification
Hi Sir, Can you help to check either ADAU1787 can provide phase vs frequency specification , just like ADAU1777 datasheet figure 11 , figure 14? Thanks for your help.
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ADAU1777 SINC Filter Characteristics?
ADI, We are using the ADAU1777 CODEC for our audio implementation program. We have enabled the 4th Order Filter registers as seen below: These are registers 0x1B and 0x1C set to 0x00. We have plotted
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ADAU1777 load multiple IIR coefficients - no grow algorithm?
Hi, I've just started using SigmaStudio for an ADAU1777. I'd like to have multiple IIR filters cascaded where I can load all coefficients from a file. After searching the forum, I saw that by rightcli
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DSP selection for audio
Hi, I have a customer looking at a DSP for audio processing. They will have onboard microphone and speaker (probably 1-2W), and also support analog and digital headsets. The audio will be mono, but we
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Questions about Stimulus-Probe and Fixed point filter table generator on ADAU1787
Hi guys Serval customers are wondering how to stimulate the frequency response of the Filters on ADAU1787. I suppose the Stimulus-Probe functions of SigmaStudio may be helpful. However, when I try to
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Can ADAU1777 support dual ANC?
Hi, My customer wants to use ADAU1777 with qualcomm QCC3026 to do TWS ANC earbud. They a few questions: 1. Can use ADAU1777 to realize both Hybrid ANC and CVC ANC simultaneously? -->Base on my underst
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set low latency on ADAU1777 with sigmastudio
Hi All, I have been looking through the datasheets on the ADAU1777 chip and eval board and searching online, looking for clear specifications on how to use sigmastudio to set the 1777 to its lowest la
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ADAU1777 ticking noise
Hi, I'm using ADAU1777 trying to cancel noise, for some reason, I'm have some "ticking noise", i'm not sure if somthing might not be set right. anyone ever incounter anything like that? I'm attaching
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ADAU1777 problem with more than 16 instructions
Hi, I have a simple setup where Input 2 feeds 7 "General (2nd order)" filters and sends out OUT0. Similarly Input 3 feeds 7 "General (2nd order)" filters and sends out OUT1. The compiler says the inst
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ADAU1777 - Questions and Bugs v4.0b2r1759
I know that the ADAU1777 is not a standard sigmadsp and is limited to basics like biquad filters and limiters. Is there also a limitation on the order of how these blocks are placed? With a limiter on