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PL520-80 Datasheet Preview

PL520-80 Datasheet

Low Phase Noise VCXO

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PL520-80
Low Phase Noise VCXO (9.5-65MHz)
FEATURES
19MHz to 65MHz fundamental crystal input.
Output range: 9.5MHz 65MHz
Complementary outputs: PECL or LVDS output.
Selectable OE Logic (enable high or enable low).
Available outputs: PECL, LVDS, or CMOS (High
Drive (30mA) or Standard Drive (10mA) output).
Integrated variable capacitors.
Supports 2.5V or 3.3V Power Supply.
Available in die form.
DESCRIPTION
The PL520-80 is a VCXO IC specifically designed to
work with fundamental crystals between 19MHz and
65MHz. The selectable divide by two feature extends
the operation range from 9.5MHz to 65MHz. It
requires very low current into the crystal resulting in
better overall stability. The OE logic feature allows
selection of enable high or enable low. Furthermore,
it provides selectable CMOS, PECL or LVDS outputs.
DIE SPECIFICATIONS
Name
Size
Reverse side
Pad dimensions
Th ic kn e s s
Value
62 x 65 mil
GND
80 m icron x 80 micron
10 mil
BLOCK DIAGRAM
VCON Oscillator
Amplifier
w/
XIN integrated
varicaps
XOUT
OE
Q
Q
S2
PL520-80
DIE CONFIGURATION
65 mil
25 24 23 22 21 20 19 18
XIN 26
XOUT 27
Die ID:
A2020-20C
N/C 28
S2^ 29
OE
30
CTRL
VCON 31
C502A
12345 6 78
(1550,1475)
17 GNDBUF
16 CMOS
15 LVDSB
14 PECLB
13 VDDBUF
12 VDDBUF
11 PECL
10 LVDS
9 OE_SEL^
Y (0,0)
X
OUTPUT SELECTION AND ENABLE
OUT_SEL1* OUT_SEL0*
(Pad 18)
(Pad 25)
Selected Output*
0 0 High Drive CMOS
0 1 Standard CMOS
1 0 LVDS
1 1 PECL (default)
OE_SELECT OE_CTRL
(Pad 9)
(Pad 30)
State
0
0 Tri-state
1 (Default) Output enabled
1 (Default)
0 (Default) Output enabled
1 Tri-state
Pads #9, #18 & #25: Bond to GND to set to “0”,
No connection results to “default” setting
through internal pull-up.
OE_CTRL: Logical states defined by PECL levels if OE_SELECT is “1”
Logical states defined by CMOS levels if OE_SELECT is “0”
OUTPUT FREQUENCY SELECTOR
S2
0
1 ( D e f au lt) *
Output
Input/2
Input
*Internally set to ‘Default’ through 60K Ω pull-up resistor
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 06/11/08 Page 1




Micrel

PL520-80 Datasheet Preview

PL520-80 Datasheet

Low Phase Noise VCXO

No Preview Available !

PL520-80
Low Phase Noise VCXO (9.5-65MHz)
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings
PARAMETERS
Supply Voltage
Input Voltage, dc
Output Voltage, dc
Storage Temperature
Ambient Operating Temperature*
Junction Temperature
Lead Temperature (soldering, 10s)
ESD Protection, Human Body Model
SYMBOL
VDD
VI
VO
TS
TA
TJ
MIN.
-0.5
-0.5
-65
-40
MAX.
4.6
VDD+0.5
VDD+0.5
150
85
125
260
2
UNITS
V
V
V
C
C
C
C
kV
Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the
device and affect product reliability. These conditions represent a stress rating only, and functional operations of the dev ice at these or any other
conditions above the operational limits noted in this specification is not implied.
* Note: Operating Temperature is guaranteed by design for all parts (COMMERCIAL and INDUSTRIAL), but tested for COMMERCIAL grade on ly.
2. Crystal Specifications
PARAMETERS
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNITS
Crystal Resonator Frequency
Crystal Loading Rating
Interelectrode Capacitance
Recommended ESR
F X IN
CL (xtal)
C0
RE
Fu n d am e n t a l
Die
AT cut
19 65 MHz
8* pF
5 pF
30 
Note: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any sp ecific
l i mit s.
3. Voltage Control Crystal Oscillator
PARAMETERS
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNITS
VCXO Stabilization Time *
VCXO Tuning Range
CLK output pullability
On-chip Varicaps control range
L in e ar it y
VCXO Tuning Characteristic
VCON input impedance
VCON modulation BW
TVC XOS TB
From power valid
FXIN = 19 65MHz;
XTAL C0/C1 < 250
0V VCON 3.3V
VCON=1.65V, 1.65V
VCON = 0 to 3.3V
0V VCON 3.3V, -3dB
10 ms
200* ppm
100*
ppm
4 18*
pF
10* %
65 ppm/V
60 k
25 kHz
Note: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any sp ecific
l i mit s.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 06/11/08 Page 2


Part Number PL520-80
Description Low Phase Noise VCXO
Maker Micrel
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