SiT6731EB 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 ........................................................................................ 4
3.3 Measuring Jitter and Phase Noise ................................................................................................... 5
3.4 Current Measurement ..................................................................................................................... 5
Appendix A .................................................................................................................................................... 6
1 Introduction
The SiT6731EB evaluation board (EVB) is designed for use with SiTime’s Emerald OCXOs in the 10-pin
9x7 mm package. It enables the evaluation of key functionalities of these OCXOs.
EVB Features
- SMA output for direct or buffered connection to measurement equipment
- Probing points for accurate waveform measurement
- Provision for I
2
C control interface (connector)
SiTime typically ships the EVB with the OCXO mounted. The OCXO device should only be evaluated in its
original soldered down state for best signal integrity and frequency stability. For best results the device
should not be de-soldered and then re-soldered either manually or via reflow process.
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