- Joined
- Aug 22, 2018
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Folks,
We have just finished testing the protos of our new digital audio shield. This replaces our 502DAC for digital audio out. This unit has the following features:
Woflson WM8804 AES Transmitter with dual NDK Low Noise Clocks
SPDIF COAX via RCA
SPDIF Optical
AES Balanced via XLR
Direct Buffered I2S via Header, with I2C, 5V and VIN Power
LVDS Differential I2S via HDMI with support for Gustard or PS Audio pinout (selected at time of order)
Single 12V to 48V input, with on-board 5V@5A supply
Separate Ultra low noise LDO's for WM8804 and NDK Clocks
Below is a photo of the unit.
Test results and comparisons to 502DAC. Note that the 502DAC board I have here on the bench has a broken XLR. Once I get another in hand I'll add that test. I can't even keep a unit for myself since we are always back ordered!
502DAC BNC. This is what everyone has been very happy with, yet clearly there was room for improvement.
PI2AES RCA. Noticeably better than 502DAC BNC.
502DAC OPTO Jitter. Yikes!
PI2AES OPTO Jitter. Huge improvement over 502DAC Opto, but still not as good as P2AES RCA
PI2AES XLR Jitter. Note that the results seem to be a bit worse then the PI2AES RCA. But XLR is needed for long cable runs or interfacing with pro audio equipment.
Cheers,
Michael
We have just finished testing the protos of our new digital audio shield. This replaces our 502DAC for digital audio out. This unit has the following features:
Woflson WM8804 AES Transmitter with dual NDK Low Noise Clocks
SPDIF COAX via RCA
SPDIF Optical
AES Balanced via XLR
Direct Buffered I2S via Header, with I2C, 5V and VIN Power
LVDS Differential I2S via HDMI with support for Gustard or PS Audio pinout (selected at time of order)
Single 12V to 48V input, with on-board 5V@5A supply
Separate Ultra low noise LDO's for WM8804 and NDK Clocks
Below is a photo of the unit.
Test results and comparisons to 502DAC. Note that the 502DAC board I have here on the bench has a broken XLR. Once I get another in hand I'll add that test. I can't even keep a unit for myself since we are always back ordered!
502DAC BNC. This is what everyone has been very happy with, yet clearly there was room for improvement.
PI2AES RCA. Noticeably better than 502DAC BNC.
502DAC OPTO Jitter. Yikes!
PI2AES OPTO Jitter. Huge improvement over 502DAC Opto, but still not as good as P2AES RCA
PI2AES XLR Jitter. Note that the results seem to be a bit worse then the PI2AES RCA. But XLR is needed for long cable runs or interfacing with pro audio equipment.
Cheers,
Michael