PLL502-51
Low Phase Noise VCXO (20MHz to 52MHz)
FEATURES
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Integrated voltage-controlled crystal oscillator
circuitry (VCXO) (pull range 380ppm minimum).
VCXO tuning range: 0V - V
DD
V.
Uses inexpensive fundamental-mode parallel
resonant crystals (from 20 to 52MHz).
2.5V or 3.3V supply voltage.
Selectable High Drive (30mA) or Standard Drive
(10mA) CMOS output.
Available in 8-Pin SOIC or TSSOP.
PIN CONFIGURATION
XOUT
N/C
VCON
GND
1
2
3
4
8
7
6
5
XIN
OE^
VDD
CLK
Note: ^ denotes internal pull up
PLL502-51
DESCRIPTION
The PLL502-51 is a monolithic low jitter, high per-
formance CMOS VCXO IC. It allows control of the
output frequency with an input voltage (VCON), us-
ing a low cost crystal.
This makes the PLL502-51 ideal for a wide range of
applications from 20MHz to 52MHz (including
27MHz, 35.328MHz, etc.).
OUTPUT RANGE
MULTIPLIER
No PLL
FREQUENCY
RANGE
20 - 52MHz
OUTPUT
BUFFER
CMOS
BLOCK DIAGRAM
XIN
XOUT
XTAL
OSC
VARICAP
CLK
OE
VCON
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991
www.phaselink.com
Rev 12/14/05 Page 1
PLL [ PHASELINK CORPORATION ]
