Low Phase Noise VCXO
PL502-03
Low Phase Noise VCXO (48MHz to 100MHz)
FE AT UR E S
VCXO output for the 48MHz to 100MHz range Low phase n...
Description
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 N/C
VCON GND
1 2 3 4
PL502-03
8 7 6 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 voltage 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 +1(408) 944-0800 fax +1(408) 474-1000 www.micrel.com Rev 5/16/11 Page 1
PIN DESCRIPTIONS
Name
Number
XOUT N/C VCON GND CLK VDD
1 2 3 4 5 6
OE 7
XIN 8
PL502-03
Low Phase Noise VCXO (48MHz to 100MHz)
Type
Description
I Crystal output. See Crystal Specifications on page 4.
- Not connected.
I Voltage...
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