Related Manuals for PI 2 Design MERCURY V3
Summary of Contents for PI 2 Design MERCURY V3
- Page 1 Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 Pi 2 Design MERCURY V3 Hardware Reference Manual © 2024 PI 2 Design PAGE 1...
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Page 2: Table Of Contents
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 Table of Contents 1 Warranty ......................................3 2 Operating Specifications ................................. 4 2.1 MERCURY V3Operating specifications ........................... 4 3 Overview ......................................5 3.1 Introduction ..................................... 5 3.2 Block Diagram ..................................5 4 On-Board Devices .................................. -
Page 3: Warranty
This warranty is valid only for so long as the product is used intact as shipped from PI 2 Design. Any attempt or effort to alter the Product, including but not limited to any attempt to solder, de-solder, unplug, replace,... -
Page 4: Operating Specifications
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 2 OPERATING SPECIFICATIONS 2.1 MERCURY V3 OPERATING SPECIFICATIONS MERCURY V3 conforms to the following specifications: Specification Value Dimensions 170mm x 123.2mm x 53.5mm (6.7” x 4.85” x 2.1”) Weight ~1.2kg (3 lbs.) -
Page 5: Overview
3 OVERVIEW 3.1 INTRODUCTION MERCURY V3, designed and manufactured by PI 2 Design, is a Raspberry Pi 4 based device designed for Professional, Studio Grade, AES and I2S Digital Audio Streaming. MERCURY V3 converts the Raspberry Pi 4 I2S Interface to High-Definition Digital Audio Coax, OPTO and Balanced XLR. -
Page 6: Fi Gure 1 - Mercury V3 Block Diagram
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 5.2V @ 5A Mini-Noise Nuke +12V +/- 20% Switching Supply PSU FILTER DC IN 2.5MM DC Jack LM2941 5V Low Noise LDO ADP150 ADP150 3.3V 3.3V SD CARD I/F SOCKET... -
Page 7: On-Board Devices
Computer (SBC) runs the software required to perform the Digital Audio Player function as well as other applications. MERCURY V3 interfaces to the PI4 via a 40-Pin GPIO connector. Key features of the PI4 (as used on the Mercury Streamer) are as follows: •... -
Page 8: Wm8804 Spdif Transmitter Notes
1. The WM8804 is controlled using the I2C port. Refer to the WM8804 documentation and installed player software. 2. MERCURY V3 is designed to operate the WM8804 in Master mode. In this mode the WM8804 receives its master clock from XIN and drives MCLK (unused by the PI4), BCLK and LRCLK out. -
Page 9: Pi4 Ports And Gpio
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 5 PI4 PORTS AND GPIO 5.1 OVERVIEW MERCURY V3 uses several of the internal functions and GPIO from the PI4 for control and status purposes. 5.2 COMPUTE MODULE 4 GPIO The PI4 provides a large number of General Purpose I/O (GPIO) pins. -
Page 10: Pi4 Gpio Notes
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 GPIO Mercury Description/Notes Streamer Usage unused *ALED Front Panel Activity LED, Low True BCLK I2S Bit Clock from WM8804 WCLK I2S Word Clock from WM8804 unused SDOUT I2S Serial Data to WM8804... -
Page 11: Mercury V3Power
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 6 MERCURY V3POWER 6.1 OVERVIEW MERCURY V3 is designed to be powered from an external +12V source. See the block diagram below for a simplified view of MERCURY V3 power flow. +12V +/- 20% RESETABLE DC INPUT... -
Page 12: Figure 3 - Mercury V3 Power Control Schematic
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 Figure 3 – MERCURY V3 Power Control Schematic 6.3 POWER STATUS As part of the power control circuit, GPIO23 (*PSW) is used to sense the state of the Pushbutton Power Switch. A low indicates that the Power Switch is in the on position (depressed). -
Page 13: Mercury V3 Software
These values and their proper sequencing are beyond the scope of this document. 7.2 COMPATIBLE DRIVER Most Audio Player software will support Mercury V3 using either the “Pi2design PI2AES” or “HifiBerry Digi+ Pro” driver. 7.3 USER_CONFIG.TXT The following statements need to be added to the Linux “user_config.txt”... -
Page 14: Connector Locations
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 8 CONNECTOR LOCATIONS 8.1 OVERVIEW This section provides the type, location, and pinout for the various connectors on the Mercury Streamer. 8.2 FRONT AND REAR PANEL AND INTERIOR VIEWS This shows the front and rear panels of MERCURY V3. -
Page 15: Pi 4 - Gigabit Ethernet
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 8.4 PI 4 - GIGABIT ETHERNET This is a standard CAT5 RJ45 and conforms to the industry Pinout. It is connected to the PI4 Ethernet Port. 8.5 PI 4 - HDMI 0 9 This is a standard HDMI female connector connected to PI4 HDMI Port 0 via an HDMI Panel Cable. -
Page 16: Dc Input Jack
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 P15 PIN Name Description No Connect Pulled to GND with 10K ohm resistor Pulled to GND with 10K ohm resistor Ground Connected to +5V via 100 ohm resistor No Connect Table 4 –... - Page 17 Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 P15 PIN Name Description Ground I2S Master Clock Ground Table 5 – Parallel I2S Over RJ45 Pinout PAGE 17...
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Page 18: Document Revisions
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 10 DOCUMENT REVISIONS Date Revision Change 02/25/2024 P0.1 Preliminary Release Table 6 – Document Revisions PAGE 18... -
Page 19: Errata
Pi 2 Design Mercury V3 Hardware Reference Manual – P0.1 11 ERRATA 11.15 OVERVIEW There are currently no errata for Mercury V3. PAGE 19...
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