eMUSIC MiniBoard User Guide Issue: First Version Revision: 1.0a Reference: eMUSIC MiniBoard -UG-Rev1.0a Created: 20th March 2018 Last modified: 28th March 2018 eMUSIC MiniBoard User Guide Revision History The following table shows the revision history for this document. Date Version Revision 2018/03/28 1.0a Initial release. Limited distribution. 2 Document Revision: 1.0a - 28th March 2018 eMUSIC MiniBoard User Guide Table of contents Revision History...........................................................................................................................2 1 Introduction...........................................................................................................................5 1.1 Overview.......................................................................................................................5 1.2 Block Diagram...............................................................................................................5 1.3 Board Features..............................................................................................................6 1.4 Board Specifications......................................................................................................6 1.4.1 Dimensions.............................................................................................................6 1.4.2 Environmental........................................................................................................6 1.4.3 Operating Voltage...................................................................................................7 2 Board Setup and Configuration.............................................................................................7 2.1 Board Component Location...........................................................................................7 2.2 Board Usage Profiles.....................................................................................................9 2.2.1 Plug & Play Profile..................................................................................................9 2.2.2 Limited Programmability Profile (UART)...............................................................10 2.2.3 Full Programmability Profile (SPI).........................................................................11 2.2.4 eMUSIC MiniBoard Outputs.................................................................................12 3 Board Component Descriptions..........................................................................................13 3.1 Power supply connectors.............................................................................................13 3.2 External SPI interface..................................................................................................15 3.3 UART Connector.........................................................................................................16 3.4 SiPM Readout Connector............................................................................................17 3.5 Microcontroller.............................................................................................................18 4 Measurements Procedure..................................................................................................20 A. eMUSIC MiniBoard Commands..........................................................................................21 3 Document Revision: 1.0a - 28th March 2018 eMUSIC MiniBoard User Guide List of Figures Figure 1: eMUSIC MiniBoard Evaluation Board block diagram....................................................5 Figure 2: eMUSIC MiniBoard top components location................................................................8 Figure 3: eMUSIC MiniBoard bottom components location..........................................................8 Figure 4: eMUSIC MiniBoard Plug & Play Profile simplified block diagram................................10 Figure 5: eMUSIC MiniBoard Limited Programmability Profile (UART) simplified block diagram. ................................................................................................................................................... 11 Figure 6: eMUSIC MiniBoard Full Programmability Profile (UART) simplified block diagram.....12 Figure 5: Header connector (a), the correspondent receptacle connector (b), and socket contact (c).............................................................................................................................................. 14 Figure 8: Power supply connector layout...................................................................................14 Figure 9: Differential to single-ended channel sum converter power supply connector layout...14 Figure 10: External SPI connector for PCB (a) and female connector (b)..................................15 Figure 11: An example of register read+write access (top) and register read only access (bottom).....................................................................................................................................15 Figure 12: External SPI connector header layout (P2)...............................................................16 Figure 13: UART connector (P1) layout and PCB picture..........................................................17 Figure 14: SiPM readout connector (J1)....................................................................................17 Figure 15: External SPI connector header layout (J1)................................................................18 Figure 16: Microcontroller flow diagram.....................................................................................19 List of Tables Table 1: eMUSIC MiniBoard Components...................................................................................9 Table 2: Operating Systems Software Compatibility List............................................................10 Table 3: eMUSIC MiniBoard Evaluation Board Outputs Configuration.......................................13 Table 4 Pin assignment of the power supply connector..............................................................14 Table 5 Pin assignment of the differential to single-ended channel sum converter power supply connector...................................................................................................................................14 Table 6 Pin assignment for the external SPI connector (P2)......................................................16 Table 7 Pin assignment for the UART connector (P1)................................................................17 Table 8 Pin Assignment for the SiPM Readout Connector (J1)..................................................18 Table 9: eMUSIC MiniBoard Evaluation Board software commands..........................................21 4 Document Revision: 1.0a - 28th March 2018 eMUSIC MiniBoard User Guide 1 Introduction 1.1 Overview The eMUSIC MiniBoard is a general-purpose evaluation board based on eMUSIC chip, an 8-channel readout ASIC for SiPM arrays. It can be connected to 8 SiPMs through a high-density connector, and the outputs of the chip can be easily monitored via the SMA connectors provided. The flexible design of the board allows to customize it to the user needs: outputs can correspond to either the individual channels (pure analog or binary discriminated, configurable via SPI protocol), or the analog summation of these channels in two different gains (high and low). These summation outputs can be either differential or single ended. Besides the different output possibilities, this eMUSIC chip itself also has several configuration parameters accessible via SPI protocol. All outputs present two different gain configurations. The ASIC contains a tunable Pole-Zero cancellation providing output signals with less than 10ns FWHM. Note that the PZ can be also bypassed if the shaping is not needed. All channels and blocks can be power-off. As configurability level may vary according to users’ needs, this board allows many levels of configuration. It is important to highlight that the board does not include any HV module. This voltage must be externally generated. 1.2 Block Diagram The block diagram of the board is shown in Figure 1. Block names and locations match with their location in the PCB. U1: ATmega328P microcontroller. U2, U3: power regulators. 5V and 3.3 V respectively. U4: eMUSIC chip. U5: Sum outputs differential to single-ended converter. J1: SiPM array readout connector with HV. P1: UART connector: configuration via microcontroller. P2: eMUSIC SPI connector: allows external control. P3: eMUSIC outputs connector: channels, sum & fast or. P8: Power supply connector: LV and HV. P10: Expansion bus connected to the microcontroller. P11: External ±5V connector to supply U5. Co1-Co8: eMUSIC SE channel/sum differential outputs. Co9-Co10: eMUSIC SE sum (HG/LG respectively). NOTE: depending on specific user’s needs, some of the depicted connectors or pin headers may not be mounted. 5 Document Revision: 1.0a - 28th March 2018 eMUSIC MiniBoard User Guide Figure 1: eMUSIC MiniBoard Evaluation Board block diagram. 1.3 Board Features The eMUSIC MiniBoard Evaluation Board features are listed here. Detailed information of these features is provided in Chapter 3. 8-channel SiPM readout over 20-pin connector with HV. Customizable SMA outputs (only desired connectors can be mounted). The pattern is also compatible with MCX connectors. o 8 analog output channels (single ended). o 8 discriminated