Pi 2 Design Digital Audio Streamers
Announcing the Mercury V3 Digital Audio Streamer! Now Shipping!
Mercury V3 FAQQ: Do all Mercury outputs work simultaneously?
A: Yes, all digital audio outputs deliver the same audio data at the same time. This includes the RJ45 I2S and I2S over HDMI. Q: What power supply comes with Mercury ? A: Mercury is designed to operate with a nominal input voltage 12V (+/- 10%). We provide a High Quality Meanwell switching power supply. Q: What size is the power jack on Mercury? A: Mercury V3 has a 2.5MM x 5.5MM DC Jack. The Meanwell supply uses 2.1mm. A 2.1mm to 2.5mm Adapter is included and is located in the power supply box. Q: What pinout is supported by the I2S over HDMI? A: Mercury V3 supports the PS Audio and GD-Audio pinouts. Q: What Operating Systems does Mercury support? A: Mercury supports all known Raspberry PI OS's. Note that proper operation of the front panel LED's require some additions to the config.txt file. This is described in the HW Reference Manual. Q: How do I change the SD Card to another OS? A: In the current version of Mercury V3, the Front Panel is removed to gain access to the SD Card located on the internal Raspberry Pi 4. A static safe tweezer is provide to allow safe removal and insertion of the SD Card. This is located in the power supply box. This is described in the HW Reference Manual. Q: Where is the WiFi/Bluetooth antenna? A: The front panel of Mercury V3 is made of black, matte finish acrylic. This material easily passes the RF signals from the Raspberry Pi 4 PCB antenna. For greater range an external USB dongle can be used.
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Mercury V3 FeaturesThe Mercury Streamer V3, designed and manufactured by PI 2 Design, is a Raspberry Pi 4 based device designed for Professional, Studio Grade, Digital Audio Streaming. The Mercury Streamer converts the Raspberry Pi 4 I2S Interface to High Definition Professional Digital Audio Coax, OPTO and Balanced XLR. These multiple, simultaneously active digital audio outputs allow the Mercury Streamer to optimally interface with virtually any High Performance DAC on the market.
The major features of the Mercury Streamer are as follows:
MERCURY V3 BLOCK DIAGRAM
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Available Products
PI2AES 2.0 - PRO AUDIO SHIELD
$299.00
PI2AES 2.0, Professional Studio Grade Audio I/O Shield. Includes Clear Acrylic Case
FEATURES
PI2AES 2.0 includes a PI3 and 4 compatible clear acrylic case.
Raspberry Pi Not included
Leadtime is typically 1 to 2 business days after receipt of order.
FEATURES
- FORM FACTOR – Raspberry Pi ® Shield Size w/40-Pin mating connector.
- AES TRANSMITTER – The industry standard WM8804 converts the RPi I2S stream to AES3/SPDIF formatted data at 24-Bit up to 192Khz Frame Rate
- COAX OUTPUT – A 1:1 Isolation Transformer provides Bit Perfect Impedance Controlled Coaxial Transmission of the Digital Audio Data
- SPDIF OPTICAL OUTPUT – Isolated Optical Transmitter Drives Consumer Level DAC and AVR
- BALANCED OUTPUT – An RS-422 Transmitter coupled with a 1:1 Isolation Transformer allows the transmission of balanced audio data via the Professional Audio Standard XLR Connector
- DIFFERENTIAL I2S OUTPUT – A DS2063 Differential Transmitters is used to drive the I2S Bus over a standard HDMI Connector. The Pinout is Selectable Between the PS Audio and Gustard Standards.
- HIGH RESOLUTION CLOCKS – A pair of Ultra-Low Noise NDK NZ2520SDA oscillators allow the WM8804 to operate in non-PLL mode for the lowest possible noise.
- ULTRA-LOW NOISE LDO’s – Ultra-Low Noise LT3045 LDO (0.9uV noise and 80dB PSRR) is used to power the WM8804 AES Transmitter, while a 2nd LT3045 LDO powers the NDK Clocks.
- LOW NOISE PCB LAYOUT – Constructed with 4-layer Split Ground PCB with noise reduction techniques refined from years of High-Speed Mixed-Signal Design work
PI2AES 2.0 includes a PI3 and 4 compatible clear acrylic case.
Raspberry Pi Not included
Leadtime is typically 1 to 2 business days after receipt of order.
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