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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (35 topics).
35 topics · 179 messages
Filtered by: #dac ✕
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how to wire an external DAC and to make it output some sound using an app made with sigma studio 4.7
hello, I have an eval_adau1467Z board, I am able to implement various use cases in it, like using toslink input, doing 2 way crossover and outputing low pass audio to channels 0&1 and high pass to cha
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ADAU1701 IIS input 192Khz signal to enable filter, DAC playback has noise
Specific operation description: As shown in the schematic diagram above, currently only one General 2nd filter is added, set to hpf and 60Hz corner frequency. Set the sample rate to 192K and the DSP c
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"level" of an i2s signal
hello everyone i am a mechanical engineer dabbling in electronics. so my question may seem nonsensical and my idea cannot be realised. i have connected an Up2Strem Pro via I2S to an APM2 (ADAU1701) an
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Use both internal and external TDM DACs
I know I can't use both TDM and l2s devices at the same time. But what about internal DAC's and ACD's, and an AD1938 in TDM mode? If so, can I mix the 4 internal DACs and up to 4 of the 1938 DACs? Aud
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ADAU1701 I2S output to PCM5102 DAC
Hello! I've been working on creating a 5-channel speaker system with the Dayton Audio KABD-430 (which uses the ADAU1701 chip) for some time now, and I've been having a lot of trouble with the 5th chan
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ADAU1996A : TDM8 on the EVAL-ADAU196XAZ DAC development board using a Xilinx Data Input
Hello! I'm currently trying to setup the ADAU1996A DAC Chip to output different channel sounds using TDM8 protocol. In the current configuration (Looking at the waveform below), the DAC should only ou
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Adau1467 expand I/O ADC and DAC
Dear sir/madam, As I am working with the Adau1467, I'm running out of ADC and DAC pins. For this application I would like to use at least 6 microphones, 1 audio input and 14 DAC outputs. I could use t
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Controlling a external device through i2c (Sigma350 family) not working
Hi everyone, I'm trying setup a PCM1865 through my ADAU1466 using the Master Control Port I/O block. I tryed different ways to do this, never worked. Can someone explain me the XML file? If mine is co
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Setup a software controlled DAC/ADC through i2c with ADAU1466
Hi everybody, I'll detail the board as much as I can: So, the board have a ADAU1466, 4x PCM5122 and 1x PCM1865, both ADC and DAC are software controlled through i2c, with its respective addresses corr
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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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ADAU1787 i2s input to DAC Output with filters
Hello, I want to pass the incoming i2s signal (from a bluetooth to i2s device) to EQ Filter and then as output to the DAC. I used this as an example, but removed the FDEC: ADAU1787 two-way bluetooth s
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32 channel DAC @ 192kHz for testing: Recommendations?
For some experiments, we'd like a 32-channel DAC @ 192kHz. This is just for lab use so cost isn't a big factor. I was hoping to find some combination of eval boards to do this with relative ease. Ther
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ADAU 1701 - Output noise vs sampling frequency
Hi all, I'm using adau1701 for an active dual channel amplifier to be used in 2-ways loudspeakers. The dsp is used to drive differentially each input channel of the class d amplifier using an active f
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Interface R/W for DAC setup
I am thinking about a small project with the ADAU-1452 and Infineon MA12070P I2S class-D chip. The setup of the amplifier chip is done with I2C, but will it be possible to do these setup changes from
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Roconstruction-Filter in the ADAU1761
Hello guys, I found the ADAU1761 with internal AD-/DA-U´s. My questions, is there a reconstructionfilter in the DAU´s to restore the continious time signal? Best Regards Viktor Audio Signa
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EVAL-ADAU1452MINIZ: DAC DC output?
I need to generate a DC control voltage from this board. All of the analog outputs are AC coupled through a 10uF cap. Can I jumper-out those caps to get the DC I need? The DC will feed an op-amp circu
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How to select filters using input as the controller?
Hi, I'm working on a project where I need to switch the filters for different magnitude of input using ADAU 1701. Here is what I have so far: Zoom in to the upper part: So I try to use the RMS lookup
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Clock Routing
Hi ! I recently started designing an ADAU1466 based DSP board. After first considering the standard AD1938 as codec, i quickly diverted to separate ADC and DACs (Cirrus Logic in this case). Having res
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ADAU1701 DAC clock driven from PLL or MCLK ?
I have a ADAU1701 design with the MCLK driven from a dirty clock from a spdif receiver. this affects the noise floor of the DAC severely. I hoped that I could clean up the DAC clock by decreasing the
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ADAU1761 and SigmaStudio
Hi all, I use ADAU1761 with a BF707 development board. I use the codec only like dac and work perfectly. I send my data and the dac play audio stream. Now I would like to use a feature of ADAU1761 DSP
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32 Bit Audio with ADAU1442
Hi there, I have a modular system with an ADAU1442 as signal processor. I would like to use an ADC and a DAC with a bit depth of 32 Bit. I know that the processor con process 24-, 20- and 16 Bit Data,
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ADAU1701 + S/PDIF in + I2Sin/out+ internal ADC/DAC + external DAC
Hi there, we are planning a small DSP board using the ADAU1701. Features should be: internal ADC (2 channel) internal DAC (4 channel) external S/PDIF receiver (maybe with transmitter to) external DAC
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ADAU1701 DAC output filter if using differential-input amps?
Hi, For a DSP-based project, I am using the four DACs of the DAU1701 to drive two amplifiers in BTL mode, using SigmaStudio for making the differential outputs. The amplifier's input is AC-coupled wit
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External DAC at 96kHz and ADAU1701
Hello guys, is it possible to use an external DAC running at 96kHz and ADAU1701 MP pins? Thanks. Audio Signal Processors SigmaDSP Audio Processors adau1701 dac
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external ADC/DAC setup with ADAU1701
Hi guys, I hope you could help me... I'm developing a dsp board with the adau1701 dsp and external ADC (PCM1804) and 2x DAC (PCM1798), so 1input ch/4output ch setup. I have read in the datasheet of th