General Description
The 8N0QV01 is a Quad-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) 10-lead ceramic 5mm x
7mm x 1.55mm package.
Besides the four default power-up frequencies set by the FSEL0 and
FSEL1 pins, the 8N0QV01 can be programmed via the I2C interface
to any output clock frequency between 15.476MHz to 260MHz to a
very high degree of precision with a frequency step size of 435.9Hz
÷N (N: PLL post divider). Since the FSEL0 and FSEL1 pins are
mapped to four independent PLL, P, M and N divider registers (P,
MINT, MFRAC and N), reprogramming those registers to other
frequencies under control of FSEL0 and FSEL1 is supported. The
extended temperature range supports wireless infrastructure,
telecommunication and networking end equipment requirements.
Features
• Fourth generation FemtoClock® NG technology
• Programmable clock output frequency from
15.476MHz to 260MHz
• Four power-up default frequencies (see part number order codes),
re-programmable by I2C
• I
2C programming interface for the output clock frequency, APR
and internal PLL control registers
• Frequency programming resolution is 435.9Hz ÷N
• Absolute pull-range (APR) programmable from
±2.5 to ±727.5ppm
• One 2.5V, 3.3V LVCMOS clock output
• Two control inputs for the power-up default frequency
• LVCMOS/LVTTL compatible control inputs
• RMS phase jitter @ 156.25MHz
(12kHz - 20MHz): 0.635ps (typical)
• RMS phase jitter @ 156.25MHz
(1kHz - 40MHz): 0.850ps (typical)
• 2.5V or 3.3V supply voltage modes
• -40°C to 85°C ambient operating temperature
• Lead-free (RoHS 6) packaging