USB transport I2S 32bit/384kHz, DSD512, multichannel Out 4xI2S, stereo In I2s, surround up to 16-channels (TDM mode)

[topdevice]

There are two of them. They're called Reflex 2.0 & Reflex 3.0

• Playback of PCM format with a maximum sampling frequency of 762 kHz 32 bit, DSD512 native or DSD256 DoP playback.
• Playback of S/PDIF - 384kHz
• Plays multi-channel Surround audio in PCM format.
• Recording stereo sound with studio quality with a maximum sampling frequency of 762 kHz 32 bit
• Two I2C ports for controlling external DACs and ADCs
• Two SPI ports for controlling external DACs and ADCs
• Addressable LED (Neopixel) control port
• Thirty two GPIO pins for connecting external controls and indications (potentiometers, buttons, switches, LEDs, encoders)
• Programmable using ChipStudio, SigmaStudio, PurePathStudio software
• Hardware adjustments
• Free change of USB Vid/Pid
• ASIO drivers from any third-party manufacturers

Sync Modes:

• Master with internal sync
• Master with external sync
• Slave

Possible audio output channel configurations

Configuration Surround audio

PCM, kHz

DSD256 DoP

DSD512 native

44,1

48,0

88,2

96,0

176,4

192,0

352,8

384,0

705,6

768,0

Until 11 289,6

Until 22 579,2

2.0​

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3.1​

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4.0​

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5.1​

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7.1​

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12 channels​

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16 channels​

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Ask me!
Oleg
ChipDipDAC
KiCad projects:
Reflex2.0
Reflex3.0

Chip Studio v0.99.4 (26/02/2024)
ChipUpdater_v1.2
firmware Reflex_2.0_v2.4
firmware Reflex_3.0_v2.4

 

[soekris]

Interesting.... Is the firmware available for licensing ? How well tested is it ?

 

[topdevice]

We do not distribute the license.
You can buy a ready-made items or a microcontroller flashed with a bootloader.
To understand how to do this, look at the KiCad project.

 

[HpW]

As it looks

- no galvanic isolation's !!! as timings (high SR) gets than anyway into trouble

• I2S controls for DAC & ADC and custom programming??
• Firmware update for the STM32 pin's ??
• UAC2 compliance ??
• Long term support of FW and SW ?
• Support of none standard frequencies as given on your list
• Windows versions support ?

Nice:

- ASIO drivers


just my 2 cents

 

[topdevice]

- no galvanic isolation's !!! as timings (high SR) gets than anyway into trouble

Haven't noticed it yet.

I2S controls for DAC & ADC and custom programming??

I2C & SPI controls for DAC & ADC and custom programming. It's very simple. Using our ChipStudio

Firmware update for the STM32 pin's ??

Bootloader via USB

UAC2 compliance ??

Sure

Long term support of FW and SW ?

Always)

Support of none standard frequencies as given on your list

What did you mean? What are the non-standard frequencies?

Windows versions support ?

Win10, 11 …
Win 7, 8 Only with ASIO driver. Works with any ASIO driver, from any manufacturer. You need to change the Vid/Pid. It's easy.

 

[454Casull]

If galvanic isolation is a dealbreaker for anyone, just get a separate isolator.

 

[topdevice]

To understand how a СhipStudio works.
For example, you did a project with DSP ADAU1467 in SigmaStudio. Save it.

And then you open it in ChipStudio.

After that, upload it to Reflex. Now you can connect ADAU1467 to Reflex via SPI and it will work as you wanted in SigmaStudio!

 

[HpW]

If galvanic isolation is a dealbreaker for anyone, just get a separate isolator.

Look, the isolater alone will not work at high speed at all... as SR 784K and external clocks requires a fifo to work properly... also no MIN/MAX timings given from the I2C so prepared for any gotchas.

 

[soekris]

We do not distribute the license.
You can buy a ready-made items or a microcontroller flashed with a bootloader.
To understand how to do this, look at the KiCad project.

I'll probably just stick to XMOS....

 

[HpW]

Haven't noticed it yet.

I2C & SPI controls for DAC & ADC and custom programming. It's very simple. Using our ChipStudio

Bootloader via USB

Sure

Always)

What did you mean? What are the non-standard frequencies?

Win10, 11 …
Win 7, 8 Only with ASIO driver. Works with any ASIO driver, from any manufacturer. You need to change the Vid/Pid. It's easy.

@ Works with any ASIO driver

Any pointer or download link is welcome? As is needed to run on Win 7, 8!

 

[topdevice]

Any pointer or download link is welcome? As is needed to run on Win 7, 8!

We will not provide an ASIO driver for our Reflex* USB transport. But if you need a driver for your USB device with our transport, please contact a vendor who can provide you with such a driver, such as Thesycon.
Another way. If you already have an ASIO driver for your device. You can change the Vid/Pid in Reflex. And it will work with your driver.
Third way. If you know the Vid/Pid of any device for which you can download a driver, and then replace the Vid/Pid in Reflex and it will work with this driver.
Replacing Vid/Pid in the ChipStudio. It’s not hard.

For example.
We know Vid/Pid for SENNHEISER HDV 820. They are like that: 0x1377 0x4001
We change them in the ChipStudio. For all configurations.

I did not change the manufacturer or name of the device, only values of Vid/Pid.

Download and install the ASIO driver. And it works with Reflex!

 

[topdevice]

With the new firmware we added a digital audio interface SPDIF up to 384 kHz
firmware Reflex_2.0_v2.4
firmware Reflex_3.0_v2.4

 

[HpW]

Did you made any loop back tests, as your ASIO shows only OUTPUT channels as on Output format tab. In other words NO INPUT channels given!

 

[topdevice]

Oh sorry. This is not a completely correct example.
There is no input in 7.1 mode.
Only from stereo to multi-channel 5.1 input port will be available.

 

[HpW]

Simple show, how a digital loop back is performing.... play on channel 1, 2 and record on channel 1,2 and may tell about the used MCK frequency.

 

[topdevice]

Feedback works like a regular audio card.
MCK - 256*Fs

 

[HpW]

In other words, not able to show any trusted working scenarios as 2 x channels out and 2 channels in.

Only simple claiming, this is not trusted world.