PRELIMINARY
PLL650-10
Network LAN Clock for Gigabit Ethernet
FEATURES
•
•
•
•
•
•
•
•
PIN CONFIGURATION
Full CMOS output swing with 40-mA output drive
capability. 25-mA output drive at TTL level.
Advanced, low power, sub-micron CMOS processes.
25MHz fundamental crystal or clock input.
Two outputs fixed at 125MHz..
Zero PPM synthesis error in all clocks.
Ideal for Network switches.
3.3V operation.
Available in 8-Pin 150mil SOIC
.
XIN
XOUT
GND
125MHz
1
2
3
4
8
7
6
5
VDD
GND
VDD
125MHz
P LL 650-10
DESCRIPTIONS
The PLL 650-10 is a low cost, low jitter, and high
performance clock synthesizer. With PhaseLink’s
proprietary analog Phase Locked Loop techniques, the chip
accepts 25MHz crystal, and produces multiple output
clocks for networking chips, and ASICs.
BLOCK DIAGRAM
125MHz
XIN
XO UT
XTAL
OS C
C ontrol
Logic
125MHz
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 12/10/02 Page 1
PRELIMINARY
PLL650-10
Network LAN Clock for Gigabit Ethernet
PIN DESCRIPTIONS
Name
XIN
XOUT
125MHz
VDD
GND
Number
1
2
4,5
6,8
3,7
Type
I
O
O
P
P
Description
25MHz fundamental crystal input (20pF C
L
parallel resonant). C
L
have been
integrated into the chip. No external C
L
capacitor is required.
Crystal connection pin.
125MHz outputs.
3.3V power supply
Ground.
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 12/10/02 Page 2
PRELIMINARY
PLL650-10
Network LAN Clock for Gigabit Ethernet
Electrical Specifications
1. Absolute Maximum Ratings
PARAMETERS
Supply Voltage Range
Input Voltage Range
Output Voltage Range
Soldering Temperature
Storage Temperature
Ambient Operating Temperature
T
S
-65
0
SYMBOL
V
CC
V
I
V
O
MIN.
MAX.
7
V
CC
+
0.5
V
CC
+
0.5
260
150
70
UNITS
V
V
V
°C
°C
°C
-
0.5
-
0.5
-
0.5
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.
2. AC Specification
PARAMETERS
Input Frequency
Output Rise Time
Output Fall Time
Duty Cycle
Max. Absolute Jitter
Max. Jitter, cycle to cycle
0.8V to 2.0V with no load
2.0V to 0.8V with no load
At VDD/2
Short term
45
50
±150
80
CONDITIONS
MIN.
10
TYP.
25
MAX.
27
1.5
1.5
55
UNITS
MHz
ns
ns
%
ps
ps
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 12/10/02 Page 3
PRELIMINARY
3. DC Specification
PARAMETERS
Operating Voltage
Input High Voltage
Input Low Voltage
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Output High Voltage At
CMOS Level
Operating Supply Current
Short-circuit Current
Nominal output current*
Nominal output current*
PLL650-10
MAX.
3.47
Network LAN Clock for Gigabit Ethernet
SYMBOL
VDD
V
IH
V
IL
V
IH
V
IL
V
OH
V
OL
V
OH
I
DD
I
S
I
out
I
out
CMOS output level
TTL output level
35
20
For all normal input
For all normal input
I
OH
= -25mA
I
OL
= 25mA
I
OH
= -8mA
No Load
VDD-0.4
35
±100
40
25
2.4
0.4
2
0.8
CONDITIONS
MIN.
3.13
TYP.
VDD/2
VDD/2
UNITS
V
V
V
V
V
V
V
V
mA
mA
mA
mA
VDD/2 - 1
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 12/10/02 Page 4
PRELIMINARY
PLL650-10
Network LAN Clock for Gigabit Ethernet
PACKAGE INFORMATION
8 PIN Narrow SOIC ( mm )
SOIC
Symbol
A
A1
B
C
D
E
H
L
e
Min.
1.35
0.10
0.33
0.19
9.80
3.80
5.80
0.40
1.27 BSC
Max.
1.75
0.25
0.51
0.25
10.00
4.00
6.20
1.27
A1
B
A
C
L
e
D
E
H
ORDERING INFORMATION
For part ordering, please contact our Sales Department:
47745 Fremont Blvd., Fremont, CA 94538, USA
Tel: (510) 492-0990 Fax: (510) 492-0991
PART NUMBER
The order number for this device is a combination of the following:
Device number, Package type and Operating temperature range
PLL650-10 S C
PART NUMBER
TEMPERATURATURE
C=COMMERCIAL
M=MILITARY
I=INDUSTRAL
PACKAGE TYPE
S=SOIC
PhaseLink Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information
furnished by Phaselink is believed to be accurate and reliable. However, PhaseLink makes no guarantee or warranty concerning the accuracy of said
information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product.
LIFE SUPPORT POLICY:
PhaseLink’s products are not authorized for use as critical components in life support devices or systems without the
express written approval of the President of PhaseLink Corporation.
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Re v 12/10/02 Page 5
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