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SiT-AN6722EB Manual Rev. 2.0

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SiT6722EB Evaluation Board User Manual

Appendix A

Figure A1. SiT6722EB EVB Electrical schematics

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Summary of Contents for SiT6722EB

Page 1: ...n of key functionalities of these precision Super TCXOs in all three configuration modes including TCXO VCTCXO and DCTCXO with I2 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 I2 C Connector for current measurement SiTime typically ships the EVB with the Supe...

Page 2: ...nector J2 through the R9 source termination resistor Section 3 2 describes in details the recommended measurement configurations Current Measurement A two pin connector P6 enables measuring the current consumption of the device Service connectors P1 P2 P3 P4 are reserved for SiTime internal use only 3 EVB Usage Descriptions 3 1 EVB Configurations SiT6722EB can be configured to support all three Su...

Page 3: ...ltage probe should not be used as it adds a high capacitive load to the part and the long ground lead clip is not suitable for high frequency measurement applications The inductance of the long ground lead coupled with the input capacitance of the probe results in a resonant circuit The consequence of this resonance results in the distortion of the clock signal Typical manifestations of this disto...

Page 4: ...SiT AN6722EB Manual Rev 2 0 Page 4 of 8 www sitime com SiT6722EB Evaluation Board User Manual Figure 1 Proper Waveform capturing on SiT6722EB ...

Page 5: ... 1uF capacitor for AC coupling to 50Ω instruments SMA connector is used to connect directly to the jitter measurement instrument such as Time Interval Analyzer TIA or high bandwidth real time oscilloscope Jitter measurement technique is described in SiTime AN10007 The SMA can also be connected through 50Ω coaxial cable to signal source analyzers or spectrum analyzers to measure phase noise In such...

Page 6: ...SiT AN6722EB Manual Rev 2 0 Page 6 of 8 www sitime com SiT6722EB Evaluation Board User Manual Appendix A Figure A1 SiT6722EB EVB Electrical schematics ...

Page 7: ...R11 R15 R17 Resistors 6 0603 4 7K 10 R18 Resistors 1 0603 51 11 R9 Resistor 1 0603 0 Ω or 24 Ω 12 L1 Inductor 1 0805 10 mH 14 J1 J2 SMA connector 1 15 P1 P2 P9 5 pin header 3 16 P3 P4 P7 2 pin header 3 17 P5 P6 2 pin connector 2 Table A2 Connectors Digi Key Part Number Connectors Digi Key part number Digi Key part number for mating connector Digi Key part number for associated products Power WM274...

Page 8: ... and any implied warranty arising from course of dealing or usage of trade as well as any common law duties relating to accuracy or lack of negligence with respect to this material any SiTime product and any product documentation Products sold by SiTime are not suitable or intended to be used in a life support application or component to operate nuclear facilities or in other mission critical appl...

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