特長
- Fourth Generation FemtoClock® NG technology
- Programmable clock output frequency from 15.476MHz to 866.67MHz and from 975MHz to 1,300MHz
- Two factory-programmed output frequencies
- VCO frequency programming resolution is 218Hz and better
- Factory-programmable VCXO pull range and control voltage polarity
- VCXO pull range programmable from typical ±12.5 to ±787.5ppm
- One 2.5V or 3.3V LVPECL clock output
- FSEL control input for frequency selection, LVCMOS/LVTTL compatible
- RMS phase jitter @ 622.08MHz (12kHz - 20MHz):0.46ps (typical)
- RMS phase jitter @ 622.08MHz (50kHz - 80MHz): 0.47ps (typical)
- 2.5V or 3.3V supply voltage
- -40°C to 85°C ambient operating temperature
- Lead-free (RoHS 6) 6-lead ceramic 5mm x 7mm x 1.55mm package
説明
The 8N3DV85 is a LVPECL Dual-Frequency Programmable VCXO with very flexible frequency and pull-range programming capabilities. The device uses IDT's fourth generation FemtoClock® NG technology for an optimum of high clock frequency and low phase noise performance. The device accepts 2.5V or 3.3V supply and is packaged in a small, lead-free (RoHS 6) 6-lead ceramic 5mm x 7mm x 1.55mm package. The device can be factory-programmed to any two frequencies in the range of 15.476MHz to 866.67MHz and from 975MHz to 1,300MHz to the very high degree of frequency precision of 218Hz or better. The output frequency is selected by the FSEL pin. The extended temperature range supports wireless infrastructure, telecommunication and networking end equipment requirements.