PL502-04
Low Phase Noise VCXO (96MHz to 200MHz)
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 5/16/11 Page 1
FEATURES
Low phase noise VCXO output for the 96MHz to
200MHz range (-128 dBc at 10kHz offset)
LVCMOS output
12 to 25MHz crystal input
Integrated variable capacitors
Selectable High Drive (30mA) or Standard Drive
(10mA) output
Wide pull range (± 250 ppm typ)
Low period jitter: 4ps RMS
3.3V operation
Available in 8-Pin SOP
DESCRIPTION
The PL502-04 is a low cost, high performance, low
phase noise VCXO, providing less than -128dBc at
10kHz offset in the 96MHz to 200MHz operating
range. The very low jitter (4 ps RMS period jitter)
makes this chip ideal for applications requiring volt-
age controlled frequency sources. Input crystal can
range from 12MHz to 25MHz (fundamental resonant
mode).
PIN CONFIGURATION
OUTPUT RANGE
BLOCK DIAGRAM
Reference
Divider
Phase
Comparator
Charge
Pump
Loop
Filter
VCO
VCO
Divider
XTAL
OSC
OE
XIN
XOUT
CLK
VCON
VARICAP
PL502-04
1
2
3
4 5
6
7
8
XOUT
N/C
VCON
GND
XIN
VDD
CLK
OE^
SOP-8L