ICST ICS671M-01 Zero delay, low skew buffer and multipler Datasheet

ICS671-01
Zero Delay, Low Skew Buffer and Multipler
Description
Features
The ICS671-01 is a low phase noise, high speed
PLL based, 8 output, low skew zero delay buffer
and multiplier. Based on ICS’s proprietary low
jitter Phase Locked Loop (PLL) techniques, the
device provides eight low skew outputs at speeds
up to 160 MHz at 3.3 V. The ICS671-01 includes
a bank of six outputs running at either x2 or x4
mode, one output running at either x2, x4, or x5
mode, and one more output running at either x1,
x2, or x4 mode. For normal operation, output
clock CLK8 is tied to the FBIN pin.
• Packaged in 16 pin narrow SOIC
• Clock outputs from 5 to 160 MHz
• Zero input-output delay
• Integrated x2 or x4 selections, and x5 for CLK7
• Eight low-skew (<250 ps) outputs
• Full CMOS outputs with 25 mA output drive
capability at TTL levels
• Tri-state mode for board-level testing
• Advanced, low power, sub-micron CMOS process
• 3.3 V to 5 V operating voltage
ICS manufactures the largest variety of clock
generators and buffers, and is the largest clock
supplier in the world.
Block Diagram
CLK1
CLK2
CLK3
CLKIN
x2, x4, or x5
PLL
FBIN
CLK4
CLK5
CLK6
CLK7
2
S1, S0
Control
Logic
CLK8
1
Revision 051700
Printed 11/15/00
Integrated Circuit Systems, Inc.• 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com
MDS 671-01 B
ICS671-01
Zero Delay, Low Skew Buffer and Multipler
Pin Assignment
ICS671-01
CLKIN
CLK1
CLK2
VDD
GND
CLK3
CLK4
S0
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
FBIN
CLK8
CLK7
VDD
GND
CLK6
CLK5
S1
16 pin narrow (150 mil) SOIC
Output Clock Mode Select Table
S1
0
0
1
1
S0
0
1
0
1
CLK1:6
CLK7
Tri-state (high impedance) Tri-state (high impedance)
x2
x5
x2
x2
x4
x4
CLK8
Tri-state (high impedance)
x1
x2
x4
Input range
5 to 30 MHz
15 to 80 MHz
7.5 to 40 MHz
Pin Descriptions
Number
1
2, 3, 6, 7,
10, 11
4, 13
5, 12
8
9
14
15
16
Name
CLKIN
Type
I
CLK1:6
VDD
GND
S0
S1
CLK7
CLK8
FBIN
O
P
P
I
I
I
I
I
Description
Clock Input.
Clock Outputs 1:6. See above table.
Power supply. Connect both pins to same voltage (either 3.3 V or 5 V).
Connect to ground.
Select input 0. See table above.
Select input 1. See table above.
Clock Output 7. See table above.
Clock Output 8. See table above. Normally use this clock as feedback.
Feedback Input. Connect to CLK8 under normal operations.
Key: I = Input; O = output; P = power supply connection.
External Components
The ICS671-01 requires a minimum number of external components for proper operation. Decoupling
capacitors of 0.01µF should be connected between VDD and GND on pins 4 and 5, and VDD and GND
on pins 13 and 12, as close to the device as possible. A series termination resistor of 33 Ω may be used close
to each clock output pin to reduce reflections.
2
Revision 051700
Printed 11/15/00
Integrated Circuit Systems, Inc.• 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com
MDS 671-01 B
ICS671-01
Zero Delay, Low Skew Buffer and Multipler
Electrical Specifications
Parameter
Conditions
Minimum
Typical
Maximum
Units
7
VDD+0.5
V
V
V
°C
°C
°C
°C
ABSOLUTE MAXIMUM RATINGS (n
note 1)
Supply voltage, VDD
Inputs and Clock Outputs
Electrostatic Discharge
Ambient Operating Temperature
Soldering Temperature
Junction temperature
Storage temperature
Referenced to GND
Referenced to GND
MIL-STD-883
-0.5
-0.5
2000
0
70
260
150
150
Max of 10 seconds
-65
DC CHARACTERISTICS (VDD = 3.3 V unless specified ottherwise)
Operating Voltage, VDD
Input High Voltage, VIH, CLKIN pin only
Input Low Voltage, VIL, CLKIN pin only
Input High Voltage, VIH
Input Low Voltage, VIL
Output High Voltage, VOH
Output Low Voltage, VOL
Output High Voltage, VOH, CMOS level
Operating Suppl Current, IDD (Note 2)
Operating Suppl Current, IDD (Note 3)
Short Circuit Current
Input Capacitance
3.13
VDD/2+1
5.50
VDD/2
VDD/2
VDD/2-1
2
0.8
IOH=-25mA
IOL=25mA
IOH=-8mA
No Load, S1=1, S0=0
No Load, S1=1, S0=0
Each output
S0, S1, FBIN
2.4
0.4
VDD-0.4
25
74
±50
7
V
V
V
V
V
V
V
V
mA
mA
mA
pF
AC CHARACTERISTICS (VDD = 3.3 V unless specified oth
herwise)
Input Clock Frequency
See table on page 2
5
80
MHz
Output Clock Frequency
See table on page 2
5
160
MHz
Output Clock Rise Time, CL=30pF
0.8 to 2.0V
1.5
ns
Output Clock Fall Time, CL=30pF
2.0 to 0.8V
1.5
ns
Output Clock Duty Cycle, VDD=3.3V
At VDD/2
40
50
60
%
Device to Device Skew, equally loaded
rising edges at VDD/2
700
ps
Output to Output Skew, equally loaded
rising edges at VDD/2
250
ps
Input to Output Skew, FBIN to CLK8
rising edges at VDD/2
±350
ps
Maximum Absolute Jitter
300
ps
Cycle to Cycle Jitter, 30pF loads
500
ps
Notes: 1. Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage to the device. Prolonged
exposure to levels above the operating limits but below the Absolute Maximums may affect device reliability.
2. With CLKIN = 20 MHz, FBIN to CLK8, all outputs at 40 MHz.
3. With CLKIN = 80 MHz, FBIN to CLK8, all outputs at 160 MHz.
3
Revision 051700
Printed 11/15/00
Integrated Circuit Systems, Inc.• 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com
MDS 671-01 B
ICS671-01
Zero Delay, Low Skew Buffer and Multipler
Package Outline and Package Dimensions
(For current dimensional specifications, see JEDEC Publication No. 95.)
16 pin SOIC narrow
Symbol
A
A1
E
H
B
C
INDEX
AREA
1
D
E
e
H
h
L
2
h x 45°
D
A1
e
B
C
Inch
hes
Min
Max
0.0532
0.0688
0.0040
0.0098
0.0130
0.0200
0.0075
0.0098
0.3859
0.3937
0.1497
0.1574
.050 BSSC
0.2284
0.2440
0.0099
0.0195
0.0160
0.0500
Millim
meters
Min
Max
1.35
1.75
0.10
0.24
0.33
0.51
0.19
0.24
9.80
10.00
3.80
4.00
1.27 BSSC
5.80
6.20
0.25
0.50
0.41
1.27
A
L
Ordering Information
Part/Order Number
ICS671M-01
ICS671M-01T
Marking
ICS671M-01
ICS671M-01
Shipping packaging
tubes
tape and reel
Package
16 pin SOIC
16 pin SOIC
Temperature
0-70 °C
0-70 °C
While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Incorporated (ICS) assumes no responsibility for either its
use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is
intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary
environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does
not authorize or warrant any ICS product for use in life support devices or critical medical instruments.
4
Revision 051700
Printed 11/15/00
Integrated Circuit Systems, Inc.• 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com
MDS 671-01 B
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