SiTime SiT6722EB User Manual

SiT-AN6722EB Manual Rev. 2.0
Page 1 of 8
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SiT6722EB Evaluation Board
User Manual
Contents
1 Introduction ............................................................................................................................................. 1
2 I/O Descriptions ....................................................................................................................................... 2
3 EVB Usage Descriptions ........................................................................................................................... 2
3.1 EVB Configurations .......................................................................................................................... 2
3.1.1 I
2
C Support ............................................................................................................................. 3
3.2 Waveform Capturing Using Active Probe ........................................................................................ 3
3.3 Measuring Jitter and Phase Noise ................................................................................................... 5
3.4 Current Measurement ..................................................................................................................... 5
Appendix A .................................................................................................................................................... 6
1 Introduction
The SiT6722EB evaluation board (EVB) is designed for use with SiTime’s Elite Super-TCXOs in the 10-pin,
5.0 x 3.2 mm ceramic packages. It enables the evaluation of key functionalities of these precision Super-
TCXOs in all three configuration modes including TCXO, VCTCXO and DCTCXO with I
2
C.
EVB Features
- Support for all three Super-TCXO configuration modes: TCXO, VCTCXO, DCTCXO
- Probing points for frequency measurements
- Connector access for controlling the output frequency via I
2
C
- Connector for current measurement
SiTime typically ships the EVB with the Super-TCXO mounted using SiTime recommended reflow profile.
The Super-TCXO device should only be evaluated in its original soldered down state for best signal
integrity and frequency stability. The device performance is not guaranteed if it is de-soldered and then
re-soldered either manually or via reflow process.

SiTime SiT6722EB Specifications

General

Frequency Range	1 MHz to 220 MHz
Operating Temperature	-40°C to +85°C
Output Signal	LVCMOS
Frequency Stability	±50 ppm
Supply Voltage	2.5V
Features	Low jitter
Package Type	Surface Mount