Document
PL502-04
Low Phase Noise VCXO (96MHz to 200MHz)
FE AT UR E S
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 voltage controlled frequency sources. Input crystal can range from 12MHz to 25MHz (fundamental resonant mode).
PIN CONFIGURATION
XOUT N/C
VCON GND
1 2 3 4
PL502-04
8 XIN 7 OE^ 6 VDD 5 CLK
SOP-8L
OUTPUT RANGE
MULTIPLIER
FREQUENCY RANGE
X8 96 - 200MHz
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 OE XIN
1 2 3 4 5 6 7 8
PL502-04
Low Phase Noise VCXO (96MHz to 200MHz)
Type
Description
I Crystal output. See Crystal Specifications on page 4. - Not connected. I Voltage Control input. P Ground. O Output clock. P +3.3V power supply. I Output Enable. Internal Pull Up. I Crystal input. See Crystal Specifications on page 4.
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings PARAMETERS
SYMBOL
MIN.
MAX.
UNITS
Supply Voltage Input Voltage, dc Output Voltage, dc Storage Temperature Ambient Operating Temperature* Junction Temperature Lead Temperature (soldering, 10s) ESD Protection, Human Body Model
VDD 4.6 V
VI
-0.5 VDD+0.5
V
VO
-0.5 VDD+0.5
V
TS -65 150 C
TA -40 85 C
TJ 125 C
260 C
2 kV
Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permane nt damage to the device and affect product reliability. These conditions represent a stress rating only, and functional oper ations of the device at these or any other co nditions above the operational limits noted in this specification is not implied. Note: Operating Temperature is guaranteed by design for all parts (CO MMERCIAL and INDUSTRIAL), but tested for COMMERCIAL grade only.
2. AC Electrical Specifications
PARAMETERS
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNITS
Input Crystal Frequency
12 25 MHz
Output Clock Rise/Fall Time (Standard Drive) Output Clock Rise/Fall Time (High Drive)
tr/tf 0.3V ~ 3.0V, 15 pF load tr/tf 0.3V ~ 3.0V, 15 pF load
2.4 1.2
ns
Output Clock Duty Cycle
Measured @ 50% VDD
45 50 55 %
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 2
3.