PL520-20
Low Phase Noise VCXO (for 100-200MHz Fundamental Crystals)
DIE CONFIGURATION FEATURES XIN VDD VDD VDD VDD DNC DNC OUTSEL1 25 24 23 22 21 20 19 18 26 Die ID:
A1919-19B XOUT 27 DNC 28 DNC 29 OE 30 VCON 31 DESCRIPTION C502A BLOCK DIAGRAM
OE
Q VCON Oscillator
X+
X-Amplifier
w/
integrated
varicaps Q PL520-20 3 4 5 6 7 GND GND GND Reserved GNDBUF (0,0) 2 GND Y 17 GNDBUF 16 CMOS 15 LVDSB 14 PECLB 13
12 VDDBUF
VDDBUF 11 PECL 10 LVDS 9
1 GND PL520-20 is a VCXO IC specifically designed to pull
high frequency fundamental crystals. Its design was
optimized to tolerate higher limits of inter-electrode
capacitance and bonding capacitance to improve
yield. It achieves very low current into the crystal
resulting in better overall stability. Its internal
varicaps allow on-chip frequency pulling, controlled
by the VCON input. (1550,1475) X OE_SELECT 8 GNDBUF п‚ п‚ п‚ п‚ п‚ п‚ п‚ 100MHz to 200MHz Fundamental Mode Crystals
Output range (no PLL):
п‚ 100MHz – 200MHz (3.3V). …