Download Print this page

SiTime SiT6907EB User Manual

Advertisement

Quick Links

SiT6907EB Evaluation Board User Manual
SiT6907EB Evaluation Board User Manual
Contents
1 Introduction ............................................................................................................................................. 1
2 I/O Descriptions ....................................................................................................................................... 2
3 EVB Usage Descriptions ........................................................................................................................... 2
3.1 EVB Configurations........................................................................................................................ 2
3.2 Waveform Capturing Using Active Probe ..................................................................................... 3
3.3 Measuring Jitter and Phase Noise ................................................................................................. 4
3.4 Current Measurement .................................................................................................................. 4
Appendix A .................................................................................................................................................... 5
1
Introduction
The SiT6907EB evaluation board (EVB) is designed for use with SiTime's XO in the 5-pin, 2.9 x 2.8 mm
(SOT23-5) packages and LVCMOS output type.
The SiT6907EB supports the following products:
Base Part Number
SiT2001
SiT2002
SiT2018
SiT2019
SiT2020
SiT2021
SiT2024
SiT2025
SiT2044
SiT2045
EVB Features
-
Support for all device configuration modes: XO
-
SMA output for direct connection to measurement equipment
-
Probing points for accurate waveform measurement
SiTime typically ships the EVB with the XO mounted using SiTime recommended reflow profile. The
device should only be evaluated in its original soldered down state for best signal integrity and
SiT6723EBB manual Rev 1.0
Type
XO
XO
Automotive & High Temp XO
Automotive & High Temp XO
Automotive & High Temp XO
Automotive & High Temp XO
Automotive & High Temp XO
Automotive & High Temp XO
Endura Automotive &
High Temp XO
Endura Automotive &
High Temp XO
Page 1 of 8
Output frequency
1 MHz – 110 MHz
MHz
115 MHz – 137 MHz
1 MHz – 110 MHz
MHz
115 MHz – 137 MHz
1 MHz – 110 MHz
MHz
115 MHz – 137 MHz
1 MHz – 110 MHz
MHz
115 MHz – 137 MHz
1 MHz – 110 MHz
MHz
115 MHz – 137 MHz
Package
2.9 x 2.8 mm (SOT23-5)
2.9 x 2.8 mm (SOT23-5)
2.9 x 2.8 mm (SOT23-5)
2.9 x 2.8 mm (SOT23-5)
2.9 x 2.8 mm (SOT23-5)
2.9 x 2.8 mm (SOT23-5)
2.9 x 2.8 mm (SOT23-5)
2.9 x 2.8 mm (SOT23-5)
2.9 x 2.8 mm (SOT23-5)
2.9 x 2.8 mm (SOT23-5)
www.sitime.com

Advertisement

loading
Need help?

Need help?

Do you have a question about the SiT6907EB and is the answer not in the manual?

Questions and answers

Summary of Contents for SiTime SiT6907EB

  • Page 1 3.4 Current Measurement ........................4 Appendix A ..............................5 Introduction The SiT6907EB evaluation board (EVB) is designed for use with SiTime’s XO in the 5-pin, 2.9 x 2.8 mm (SOT23-5) packages and LVCMOS output type. The SiT6907EB supports the following products:...
  • Page 2 EVB Usage Descriptions EVB Configurations SiT6907EB can be configured to support three configuration modes including XO/TCXO with output enable (OE), XO in Standby (ST), Spread Disabled (SD), Voltage Control (VC) or Digital Control (DC). Oscillator output can be accessed in several ways listed in Table 2. Table 2 describes components configuration to support all output configurations.
  • Page 3 For waveform measurement, it's recommended to remove resistor R7. Please refer to Figure A2 for test point locations on the SiT6907EB. If the soldering probe is used, it is recommended to use C7 capacitor pads or solder it over it if necessary (Figure SiT6723EBB manual Rev 1.0...
  • Page 4 Figure 1: Recommended points for soldering probe head More details on the SiTime recommendations on the oscillator’s output probing can be found in AN10028. Measuring Jitter and Phase Noise For Jitter measurements or phase noise measurements with evaluation boards, SiTime recommends using SMA support Configuration to connect the device output directly to external equipment, such as Time Interval Analyzer (TIA) or high-bandwidth real-time oscilloscope.
  • Page 5 SiT6907EB Evaluation Board User Manual Appendix A 10uH 10uF Sense 0.1uF 0.01uF 0.1uF PIN1 J1 SMA edge mount PIN1 Pin1 NL R7 0.1uF SiTime_4pin PIN1 SMA edge mount Figure A1: SiT6907EB electrical schematics Page 5 of 8 www.sitime.com...
  • Page 6 SiT6907EB Evaluation Board User Manual Table A1: Bill of Materials (BOM) Reference Description SMD component size Value Designators Capacitors 0603 10uF Capacitors 0603 C3, C5, C6 Capacitors 0603 0.1uF Capacitor 0402 0.01uF Capacitor 0402 bidirectional 0603 protection diode Inductance 0805...
  • Page 7 SiT6907EB Evaluation Board User Manual Probe test points Signal VDD sense Figure A2: SiT6907EB layout SiT6723EBB manual Rev 1.0 Page 7 of 8 www.sitime.com...
  • Page 8 © SiTime Corporation, December 2023. 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 including static discharge, neglect or accident, (iii) unauthorized modification or repairs which have been soldered or altered during assembly and are not capable of being tested by SiTime under its normal test conditions, or (iv) improper installation, storage, handling, warehousing or transportation, or (v) being subjected to unusual physical, thermal, or electrical stress.