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PL520-30 Datasheet Preview

PL520-30 Datasheet

PECL and LVDS Low Phase Noise VCXO

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PL520-30
PECL and LVDS Low Phase Noise VCXO (for 65-130MHz Fund Xtal)
FE AT UR E S
65MHz to 130MHz Fundamental Mode Crystals.
Output range (no PLL):
65MHz 130MHz (3.3V).
65MHz 105MHz (2.5V).
Low Injection Power for crystal 50uW.
Complementary outputs: PECL or LVDS.
Selectable OE Logic
Integrated variable capacitors.
Supports 2.5V or 3.3V-Power Supply.
Available in die form.
Thickness 10 mil.
DESCRIPTION
The PL520-30 is a VCXO IC specifically designed to
pull frequency fundamental crystals from 65MHz to
130MHz, with selectable PECL or LVDS outputs and
OE logic (enable high or enable low). Its design was
optimized to tolerate higher limits of interelectrodes
capacitance and bonding capacitance to improve
yield. It achieves very low current into the crystal
resulting in better overall stability. Its internal
varicaps allow an on chip frequency pulling,
controlled by the VCON input.
BLOCK DIAGRAM
VCON Oscillator
Amplifier
w/
XIN integrated
varicaps
XOUT
OE
Q
Q
PL520-30
DIE CONFIGURATION
65 mil
25 24 23 22 21 20 19 18
XIN 26
XOUT 27
Die ID:
A1313-13B
N/C 28
N/C 29
OE
30
CTRL
VCON 31
C502A
12345 6 78
(1550,1475)
17 GNDBUF
16 N/C
15 LVDSB
14 PECLB
13 VDDBUF
12 VDDBUF
11 PECL
10 LVDS
9 OUTSEL^
Y (0,0)
X
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
OUTPUT SELECTION AND ENABLE
OUTSEL
(Pad #9)
0
1
Selected Output
L VD S
PECL (default)
OESEL
(Pad #25)
0
1 (default)
OE_CTRL
(Pad #30)
0
1
0
1
State
Tr i- s t a te
Output enabled (default)
Output enabled (default)
Tr i- s t a te
Pad #9, #25: Bond to GND to set to “0”. Internal pull up.
Pad #30: Logical states defined by PECL levels if OESEL is “1”
Logical states defined by CMOS levels if OESEL is “0”
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944-0800 • fax +1(408) 474-1000 • www.micrel.com Rev 2/9/09 Page 1




Micrel

PL520-30 Datasheet Preview

PL520-30 Datasheet

PECL and LVDS Low Phase Noise VCXO

No Preview Available !

PL520-30
PECL and LVDS Low Phase Noise VCXO (for 65-130MHz Fund Xtal)
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 device 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
Built-in Capacitance
Inter-electrode capacitance
C0/C1 ratio (gamma)
Oscillation Frequency
SYMBOL
CONDITIONS
MIN. TYP. MAX.
CX+
CX-
65MHz to 130MHz
(at VDD)
C0
2
2
2.6
 300
OF
Fund., 3.3V Supplies
Fund., 2.5V Supplies
65
65
130
105
UNITS
pF
-
MHz
3. Voltage Control Crystal Oscillator (3.3V)
PARAMETERS
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNITS
VCXO Stabilization Time *
VCXO Tuning Range *
VCXO pullability *
On-chip Varicaps control range *
Linearity *
VCXO Tuning Characteristic
VCON input impedance
VCON modulation BW
TVC XOS TB
From power valid
XTAL C0/C1 < 250
0V VCON VDD
VCON=1.65V, 1.65V
VCON = 0 to VDD
3.3V Supplies
2.5V Supplies
0V VCON VDD, -3dB
10 ms
200 ppm
100
ppm
4 18
7 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 specific limits.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944-0800 • fax +1(408) 474-1000 • www.micrel.com Rev 2/9/09 Page 2


Part Number PL520-30
Description PECL and LVDS Low Phase Noise VCXO
Maker Micrel
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