PL502-03 Datasheet, PDF (1/5 Pages) Micrel Semiconductor – Low Phase Noise VCXO (48MHz to 100MHz)

PL502-03
Low Phase Noise VCXO (48MHz to 100MHz)
FE AT UR E S
 VCXO output for the 48MHz to 100MHz range
 Low phase noise (-130 dBc @ 10kHz offset at
48MHz)
 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: 3.5ps RMS
 3.3V operation
 Available in 8-Pin SOP
PIN CONFIGURATION
XOUT 1
8
N/C 2
7
VCON 3
6
GND 4
5
SOP-8L
Note: ^ denotes internal pull up
XIN
OE^
VDD
CLK
DESCRIPTION
The PL502-03 is a low cost, high performance and
low phase noise VCXO for the 48 to 100MHz range,
providing less than -130dBc at 10kHz offset at
48MHz. The very low jitter (3.5ps RMS period jitter)
makes this chip ideal for applications requiring volt-
age controlled frequency sources. Input crystal can
range from 12 to 25MHz (fundamental resonant
mode).
OUTPUT RANGE
MULTIPLIER
FREQUENCY
RANGE
X4
48 - 100MHz
OUTPUT
BUFFER
LVCMOS
BLOCK DIAGRAM
VCO
Divider
Reference
Divider
Phase
Comparator
Charge
Pump
XIN
XOUT
XTAL
OSC
VARICAP
VCON
Loop
Filter
VCO
OE
CLK
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax [phone] • www.micrel.com Rev 5/16/11 Page 1