explain
Cdclvc1310 is a multi-purpose, low jitter, low-power clock fan out buffer. This buffer can allocate one of the three inputs to 10 low jitter lvcoms clock outputs. The main and sub inputs of these three inputs have unique differential or single ended signal and crystal oscillator inputs.
These buffers are suitable for a variety of mobile and wired infrastructure, data communication, computing, low-power medical imaging and portable test and measurement applications. When the input is an illegal level, the output is in a determined state. The core voltage can be set at 2.5V or 3.3V, and the output can be set at 1.5V, 1.8V, 2.5V or 3.3V. The cdclvc1310 can be easily configured by pin programming.
The overall additional jitter performance is 25fsrms (typical). Cdclvc1310 is packaged in a small 32 pin 5mm x5mm QFN package. characteristic
• high performance crystal oscillator buffer supporting - 169dbc / Hz ultra-low background noise
• phase jitter (typical RMS added value)
• level conversion with 3.3V or 2.5V core voltage and 3.3V, 2.5V, 1.8V or 1.5V output power supply
• device inputs include primary, secondary and crystal oscillator inputs and can be manually selected (through pins) using Input Mux.
The primary and secondary inputs can accept low-voltage forward emitter coupled logic (LVPECL), low-voltage differential signal (LVDS), host clock signal level (HCSL), SSTL or low-voltage CMOS (lvcmos) signal and crystal oscillator input.
– support crystal oscillator frequencies from 8MHz to 50MHz
– supports differential and single ended input frequencies up to 200MHz.
• 10 single ended lvcmos outputs. The input can operate under the power supply voltage of 1.5V, 1.8V, 2.5V or 3.3V.
– lvcoms output operating frequency up to 200MHz
– output offset is 30ps (typ.)
– total propagation delay is 2ns (typ.)
– synchronous and burr free pulse output enable available
• square flat pinless (QFN) - 32 5mm x 5mm package with industrial temperature range of – 40 ° C to 85 ° C.
• crystal oscillator input capable of over driving lvcoms signal up to 50MHz
