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SiT6702DM Demo Board User Manual
Contents
1 Introduction ............................................................................................................................................. 1
2 SiT6702DM Package ................................................................................................................................. 1
3 Board Features and Connections ............................................................................................................. 2
4 PC Connection and Clock Configurator Software .................................................................................... 5
4.1 Software Installation ........................................................................................................................ 5
4.2 Software Operation ......................................................................................................................... 7
Appendix: SiT6702DM Schematic ............................................................................................................... 14
1
Introduction
2
The SiT6702DM is an I
2
that have I
C/SPI interfaces for in-system programming of output frequency or pulling/tuning the
frequency. The SiT6702DM board has a USB interface for connecting to the PC. The board is powered
through the USB by default, but it can be configured to accept an external +5-V supply. TimeMaster™
clock configurator software is provided for controlling the board.
The SiT6702DM board is designed to be used in combination with the SiT6722EB, SiT6722SEB, or
SiT6712EB evaluation boards (EVBs).
1. The SiT6722EB and SiT6722SEB EVBs support SiT5155/6/7, SiT5356/7, SiT5358/9 TCXO families
with the DCO function enabled via I
2. The SiT6712EB EVB supports SiT3521 and SiT3522 I
2
SiT6702DM Package
Table 1: The SiT6702DM rev 1.01 shipment package includes:
Item
SiT6702DM rev.1.01
SiT6702DM Rev. 1.01
C/SPI demonstration board used for evaluating the features of SiTime oscillators
2
C
2
C/SPI in-system programmable oscillators
Image
Page 1 of 17
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Summary of Contents for SiTime SiT6702DM
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Page 1: Table Of Contents
C/SPI interfaces for in-system programming of output frequency or pulling/tuning the frequency. The SiT6702DM board has a USB interface for connecting to the PC. The board is powered through the USB by default, but it can be configured to accept an external +5-V supply. TimeMaster™... -
Page 2: Board Features And Connections
USB Micro B connector for connection to the PC. By default board is powered through this connector. External Power A two-pin connector (P3) for DC power supply to the SiT6702DM board. Pin polarity is identified on the silkscreen pattern near the connector (see Figure Nominal voltage required is +5V. - Page 3 SiT6722EB/SiT6722SEB boards use an I C interface only. Two interface cables are supplied with the SiT6702DM: one is intended for connecting to the I interface of the SiT6722EB/SiT6722SEB EVBs and the second is intended for connecting to the I C/SPI SiT6702DM Rev.
- Page 4 SiT6712EB EVB. Follow the coloring scheme as shown in Figures 2-4 for selecting the proper cable connection. Figure 2: SiT6702DM to SiT6722EB/SiT6722SEB connections, I Figure 3: SiT6702DM to SiT6712EB connections, I Figure 4: SiT6702DM to SiT6712EB connections, SPI SiT6702DM Rev.
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Page 5: Pc Connection And Clock Configurator Software
SiT6702DM Demo Board User Manual PC Connection and Clock Configurator Software The SiT6702DM board connects to the PC with a USB interface. TimeMaster clock configurator software is supplied with the board and is compatible with Microsoft Windows-based systems: Windows 7 and Windows 10. - Page 6 SiT6702DM Demo Board User Manual 3. Select the destination folder and then click Next 4. Click Install 5. After the installation is complete, click Finish to close the installer window. Software installation will automatically add a shortcut on the desktop for quick software launch.
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Page 7: Software Operation
SiT6702DM Demo Board User Manual Software Operation There are two GUI startup flows that are supported. 1. Start with the board disconnected from the PC. The GUI will open with a notice that the board is disconnected (see Figure 5). After the board is connected the user should go to the menu: SystemCheck->Initialize to initialize the system. - Page 8 SiT6702DM Demo Board User Manual Important note: The software does not automatically detect the output signaling type so it is important to select the correct item in the Signaling Type menu. If the wrong signaling type is selected, the driver settings may be programmed incorrectly during the feature evaluation which will result in an incorrect output waveform.
- Page 9 SiT6702DM Demo Board User Manual Figure 6: Device options selection window Once all options are selected, the GUI will start the main window showing the board connection status (see Figure 7). The main GUI shows a simplified block diagram of the device with DCO and output enable blocks accessible to the user.
- Page 10 SiT6702DM Demo Board User Manual Figure 8: Startup GUI appearance when board is connected, SiT6712EB with SiT3521 device example, register content viewer enabled Figure 9: Startup GUI appearance when board is connected, SiT6722EB with SiT5356 device example SiT6702DM Rev. 1.01 Page 10 of 17 www.sitime.com...
- Page 11 Note: If no evaluation board with a SiTime device is connected to the SiT6702DM board or any mistake is made when selecting device options (e.g. wrong device address specified), the GUI will display an...
- Page 12 SiT6702DM Demo Board User Manual Figure 10: Error window reporting that device is not found SiT6702DM Rev. 1.01 Page 12 of 17 www.sitime.com...
- Page 13 SiT6702DM Demo Board User Manual Menu options: 1. Menu tab: a. Checkbox: displays the SiTime device register contents b. Quit: exits the GUI 2. SystemCheck tab: a. Initialize: initializes the GUI. Initialization must be run if: 1. The board has been connected after the GUI start up 2.
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Page 14: Appendix: Sit6702Dm Schematic
SiT6702DM Demo Board User Manual Appendix: SiT6702DM Schematic Figure A1: SiT6702DM rev. 1.01 schematic SiT6702DM Rev. 1.01 Page 14 of 17 www.sitime.com... - Page 15 SiT6702DM Demo Board User Manual Table A1: Bill of Materials (BOM) Reference Designators Description SMD Component Size Value R1, R2, R3, R31, Resistor 0402 Not populated R32, R33, R46 R4, R5, R34, R41, Resistor 0402 10 kΩ R43, R44, R45,...
- Page 16 SiT6702DM Demo Board User Manual 300 mA, low SOT23-5 MCP1824 voltage, low quiescent current LDO regulator LDO voltage RGW(S-PVQFN-N20) TPS7A8300 regulator Voltage-level SOIC14_M TXB0104DR translator SiTime 4-pin 2520 standard SE oscillator ARM MCU UFQFPN32 STM32F042 3-pin connector Header 1x3 2.54 mm...
- Page 17 © SiTime Corporation, February 2019. The information contained herein is subject to change at any time without notice. SiTime assumes no responsibility or liabi lity for any loss, damage or defect of a Product which is caused in whole or in part by (i) use of any circuitry other than circuitry embodied in a SiTime product, (ii) misuse or abuse...
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