LMK04800 Jitter Cleaner Family
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National's family of clock jitter cleaners combines a high level of functional integration with ultra-low phase noise performance. The devices are highly flexible and configurable to support a variety of different clock architectures.
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- Ultra-low RMS jitter performance
- 111 fs RMS jitter (12 kHz to 20 MHz) at 184.32 MHz
- 123 fs RMS jitter (100 Hz to 20 MHz) at 184.32 MHz
- -162 dBc/Hz wideband noise floor
- -227dBc/Hz PLL figure of merit
- 1.536 GHz max output frequency
- Hold-over mode supports recovery of clock when input clock is lost
- Multiple clock inputs with automatic switching
- 50% duty cycle output dividers, 1 to 1045 (even and odd)
- 12 programmable outputs (LVPECL, LVDS, or LVCMOS)
- Precision digital and analog delays
- Zero-delay mode
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LMX2541 Integrated Frequency Synthesizer
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The family is the world's lowest noise integrated frequency synthesizer. Featuring the world's lowest noise phase-locked loop (PLL) with bypass-able integrated VCO, the LMX2541 provides less than 2 mrad RMS noise at 2.1 GHz and 3.5 mrad RMS noise at 3.5 GHz, outperforming the nearest competitor by 10 dB in both in-band PLL noise and spurious performance.
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- Normalized PLL phase noise of -225 dBc/Hz
- Ultra-low RMS noise and spurs
- Wide frequency range 31.6 MHz to 4 GHz
- Internal VCO can be bypassed for use with external VCO
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