High-performance synthesizer delivers low phase jitter
The 8T49NS010 synthesizer with an integrated fanout buffer/divider delivers high-performance clocks for demanding applications, and is ideal for 40GE and 100GE telecommunications and networking systems.
The 10-output synthesizer provides a high-frequency clock with 86 fs RMS phase jitter over the standard 12 kHz to 20 MHz integration range. The 8T49NS010 features an integrated fanout buffer, removing the issues of additive phase jitter and noise coupling from oscillator to fanout buffer. The chip supports programmable configurations and output levels to satisfy the requirements of a variety of applications.
The 8T49NS010 is configurable through an I2C serial interface and operates over an industrial temperature range. In addition to output power-down, it supports two logic levels for its differential outputs; the first provides an LVPECL output level with 750 mV typical swing (requiring no DC termination), while the second provides a similar swing and output level with no external DC termination. The device uses an external fundamental mode crystal, alleviating the expense and availability issues associated with high-end oscillators. It boasts a noise floor of -161 dBc/Hz.
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