AD9517-4
1Provides multiple-output clock distribution with sub-picosecond jitter performance and integrated phase-locked loop (PLL) and voltage control on-chip
oscillator(VCO)。 The on-chip VCO is tuned over a frequency range of 1.45 GHz to 1.80 GHz. External VCCO/VCXOs up to 2.4 GHz can also be used.
The AD9517-4's excellent low jitter and phase noise greatly improves data converter performance and also benefits other applications where phase noise and jitter are critical.
The AD9517-4 has four LVPECL outputs in two pairs and four LVDS outputs in two pairs. Each LVDS output can be reconfigured as two CMOS outputs. The LVPECL output operates at 1.6 GHz, the LVDS output at 800 MHz, and the CMOS output at 250 MHz.
Each pair of outputs has a divider with programmable divider ratio and coarse delay (or phase). The LVPECL output is divided over a frequency division range of 1 to 32. The LVDS/CMOS output has a crossover range of up to 1024.
The AD9517-4 is available in a 48-lead LFCSP package and can operate from a single 3.3 V supply. An external VCO can be used when connecting a charge pump supply (VCP) to a 5V voltage, which requires a wider voltage range. The stand-alone LVPECL supply can be from 2.5 V to 3.3 V nominal.
The AD9517-4 is specified over the industrial temperature range of −40°C to +85°C.
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