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Micrel Semiconductor

PL620-88 Datasheet Preview

PL620-88 Datasheet

Low Phase Noise XO

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PL620-88/-89
Low Phase Noise XO (9.5-65MHz Output)
FE AT UR E S
Crystal input range: 19MHz to 65MHz
Output range: 9.5MHz 65MHz
Very low phase noise and jitter
Complementary outputs:
o LVPECL (PL620-88)
o LVDS (PL620-89)
Supports 2.5V or 3.3V Power Supply.
Available in 16 pin TSSOP GREEN/RoHS
compliant package.
PIN CONFIGURATION
VDD
XIN
XOUT
DNC
S2^
OE
DNC
GND
1
2
3
4
5
6
7
8
16 DNC
15 DNC
14 GNDBUF
13 QBAR
12 VDDBUF
11 Q
10 GNDBUF
9 GND
TSSOP-16L
Note: ^ denotes internal pull up
DESCRIPTION
The PL620-88 (LVPECL) and PL620-89 (LVDS) are
XO ICs specifically designed to work with
fundamental or 3rd OT crystals between 19MHz and
65MHz. The selectable divide by two feature extends
the output range from 9.5MHz to 65MHz. They
require very low current into the crystal resulting in
better overall stability.
OUTPUT ENABLE LOGIC TABLE
Part Number
OE
State
PL620-88
PL620-89
0 (Default)
1
0
1 (Default)
Output enabled
Tri-state
Tri-state
Output enabled
BLOCK DIAGRAM
Oscillator
X+ Amplifier
X-
O
E
Q
Q
S2
OUTPUT FREQUENCY DIVIDE BY
TWO SELECTOR (S2)
S2 Output
0
1(Default)
Intput/2
Input
Micrel Inc. • 2180 Fortune Drive • S an Jose, CA 95131 • USA • tel +1(408) 944-0800 • fax +1(408) 474-1000 • www.micrel.com Rev 4/28/09 Page 1




Micrel Semiconductor

PL620-88 Datasheet Preview

PL620-88 Datasheet

Low Phase Noise XO

No Preview Available !

PL620-88/-89
Low Phase Noise XO (9.5-65MHz Output)
PACKAGE PIN ASSIGNMENT
Name
Pin#
Description
VDD
XIN
XOUT
DNC
S2
OE
GND
GNDBUF
Q
VDDBUF
QBAR
GNDBUF
1
2
3
4, 7, 15, 16
5
6
8, 9
10
11
12
13
14
Power Supply.
Crystal input. See Crystal Specification on page 3.
Crystal output. See Crystal Specification on page 3.
Do Not Connect.
Output Divide by Two selector pin. See the OUTPUT DIVIDE BY TWO
SELECTOR table on page 1.
Output Enable input. See OUTPUT ENABLE LOGIC table on page 1.
Ground.
Ground for output buffer circuitry.
LVPECL or LVDS output.
Power supply for output buffer circuitry.
Complementary LVPECL or LVDS output.
Ground for output buffer circuitry.
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 exten ded 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.
Micrel Inc. • 2180 Fortune Drive • S an Jose, CA 95131 • USA • tel +1(408) 944-0800 • fax +1(408) 474-1000 • www.micrel.com Rev 4/28/09 Page 2


Part Number PL620-88
Description Low Phase Noise XO
Maker Micrel Semiconductor
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PL620-88 Datasheet PDF






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