SY89840U Description
The SY89840U is a low jitter PECL, 2:1 differential input multiplexer (MUX) optimized for redundant source switchover applications. Unlike standard multiplexers, the SY89840U unique 2:1 Runt Pulse Eliminator (RPE) MUX prevents any short cycles or “runt” pulses during switchover. In addition, a unique Fail-Safe Input protection prevents metastable conditions when the selected input clock fails to a DC voltage...
SY89840U Key Features
- Selects between two sources, and provides a glitch-free
- Guaranteed AC performance over temperature and supply voltage
- Wide operating frequency: 1kHz to >1.5GHz
- < 880ps In-to-Out tpd
- < 190ps tr/tf
- Unique patent-pending input isolation design minimizes
- Fail-safe input prevents oscillations
- Ultra-low jitter design
- 140fs RMS phase jitter (Typ)
- 0.7psrms MUX crosstalk induced jitter
SY89840U Applications
- Wide operating frequency: 1kHz to >1.5GHz
- < 880ps In-to-Out tpd