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12/24的CMOS输出LVPECL时钟集成2.8千兆赫压控振荡器的发电机ad9520-0数据表
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The AD9520-01 provides a multi-output clock distribution function with subpicosecond jitter performance， along with an on-chip PLL and VCO. The on-chip VCO tunes from 2.53 GHz to 2.95 GHz. An external 3.3 V/5 V VCO/VCXO of up to 2.4 GHz can also be used.The AD9520-0 serial interface supports both SPI and I²C ports. An in-package EEPROM， which can be programmed through the serial interface， can store user-defined register settings for power-up and chip reset. The AD9520-0 features 12 LVPECL outputs in four groups. Any of the 1.6 GHz LVPECL outputs can be reconfigured as two 250 MHz CMOS outputs. If an application requires LVDS drivers instead of LVPECL drivers， refer to the AD9522-0. Each group of three outputs has a divider that allows both the divide ratio （from 1 to 32） and the phase offset or coarse time delay to be set. The AD9520-0 is available in a 64-lead LFCSP and can be operated from a single 3.3 V supply. The external VCO can have an operating voltage of up to 5.5 V. A separate output driver power supply can be from 2.375 V to 3.465 V. The AD9520-0 is specified for operation over the standard industrial range of −40°C to +85°C.
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