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SM840001 датащи(PDF) 5 Page - Micrel Semiconductor |
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SM840001 датащи(HTML) 5 Page - Micrel Semiconductor |
5 / 8 page Micrel, Inc. SM840001 March 2010 5 M9999-031810-B hbwhelp@micrel.com or (408) 955-1690 Functional Description The SM840001 provides a high performance and high accuracy solution for a precision clock source at 106.25 or 212.50MHz derived from a low cost 26.5625MHz Xtal. A single 12mA LVCMOS output is provided with tri state capability, controlled via an external pin (OE). The design of the SM840001 consumes very low power in the PLL due to a patented technology in the VCO and the associated dividers. The VCO range is ~3.2GHz to 3.5GHz providing high resolution and easy integer divide ratios. Output Divider ratios are fixed at either ÷15 or ÷30 controlled via the FSEL pin, and the feedback divider also fixed at ÷120. Duty Cycle is inherently improved and guarantees tight control and stability on this critical specification. The provides improved specifications for Duty Cycle, Jitter, Phase Noise, Power Consumption, and noise sensitivity. Additionally, the SM840001 will operate at either 3.3V or 2.5V supplies. Switching Waveforms RMS Phase Noise/Jitter Phase Noise Plot: 106.25MHz @ 3.3V Phase Noise Plot: 212.5MHz @ 3.3V |
Аналогичный номер детали - SM840001 |
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Аналогичное описание - SM840001 |
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