MK74CB163 [ICSI]
1 to 16 PECL to CMOS Buffalo⑩ Clock Driver; 1至16 PECL到CMOS布法罗™时钟驱动器
| 型号： | MK74CB163 |
| 厂家： | 
INTEGRATED CIRCUIT SOLUTION INC |
| 描述： | 1 to 16 PECL to CMOS Buffalo⑩ Clock Driver |
| 文件： | 总5页 (文件大小：80K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PRELIMINARY INFORMATION
MK74CB163
1 to 16 PECL to CMOS Buffalo™ Clock Driver
Description
Features
The MK74CB163 Buffalo™ is a monolithic
CMOS high speed clock driver. It consists of a
PECL input to sixteen low-skew output, non-
inverting clock drivers. This monolithic solution
eliminates any concern for part-to-part skew
matching. The MK74CB163 is packaged in the
tiny 28 pin SSOP, which uses the same board
space as the narrow 16 pin SOIC.
• Tiny 28 pin SSOP (150 mil) package
• One input to sixteen output clock drivers
• Outputs are skew matched to within 250ps
• 3.3 V±10% supply voltage
• Clock speeds up to 156 MHz
• 2 Output Enables allow configuration as 1 to 6, 1
to 10, or 1 to 16 buffers.
• Converts PECL input to CMOS level outputs
Family of ICS Parts
The MK74CB163 Buffalo™ is designed to be
used with ICS’s clock synthesizer devices. The
inputs of the Buffalo are matched to the outputs of
ICS clock synthesizers. Consult ICS for
applications support.
Block Diagram
OE0
VDD
4
PECLIN
PECLIN
Q0
Q15
Q14
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q13
Q12
Q11
Q10
Q9
Q8
4
OE1
GND
MDS 74CB163 A
1
Revision 112399
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408)295-9800tel • www.icst.com
PRELIMINARY INFORMATION
MK74CB163
1 to 16 PECL to CMOS Buffalo™ Clock Driver
Pin Assignment
Suggested Layout
28
27
26
25
24
23
OE0 1
Q0 2
OE1
Q15
Q14
Q13
VDD
VDD
Q1
Q2
3
4
VDD 5
V
G
V
G
VDD
Q3
Q4
6
7
8
22 Q12
0.1µF
0.1µF
21
20
19
18
17
16
15
Q11
GND 9
GND 10
Q5 11
GND
GND
Q10
Q9
Q8
Q6 12
Q7 13
14
PECLIN
PECLIN
For simplicity, 33 Wseries termination resistors are not
shown for the outputs, but should be placed as close to the
device as possible. It is most critical to have the 0.1µF
decoupling capacitors closest.
= connect to VDD
G = connect to GND
V
Pin Descriptions
Number
1
Name
OE0
Type Description
I
O
P
O
P
O
I
Output Enable. Tri-states Q0 to Q5 clock outputs when this input is low. Internal pull-up.
2, 3, 4
5, 6
Q0, Q1, Q2
VDD
Clock outputs.
Power supply. Connect to +3.3V.
7, 8
Q3, Q4
GND
Clock outputs.
9, 10
Connect to ground.
11, 12, 13 Q5, Q6, Q7
Clock outputs.
14
15
PECLIN
PECLIN
Complementary PECL input.
I
True PECL input.
16, 17, 18 Q8, Q9, Q10
O
P
O
P
O
I
Clock outputs.
19, 20
21, 22
23, 24
GND
Q11, Q12
VDD
Connect to ground.
Clock outputs.
Power supply. Connect to +3.3V.
25, 26, 27 Q13, Q14, Q15
28 OE1
Clock outputs.
Output Enable. Tri-states Q6 to Q15 clock outputs when this input is low. Internal pull-up.
Type: I = Input, O = output, P = power supply connection
MDS 74CB163 A
2
Revision 112399
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408)295-9800tel • www.icst.com
PRELIMINARY INFORMATION
MK74CB163
1 to 16 PECL to CMOS Buffalo™ Clock Driver
Electrical Specifications
Parameter
Conditions
Minimum
Typical
Maximum
Units
ABSOLUTE MAXIMUM RATINGS (Note 1)
Supply Voltage, VDD
Inputs
Referenced to GND
Referenced to GND
Referenced to GND
7
VDD+0.5
VDD+0.5
70
V
V
0.5
0.5
0
Clock Outputs
V
Ambient Operating Temperature
Soldering Temperature
Storage Temperature
°C
°C
°C
Max of 20 seconds
260
-65
150
DC CHARACTERISTICS (VDD = 3.3 V unless noted)
Operating Voltage, VDD
3.0
2.0
3.6
0.8
0.5
V
V
Input High Voltage, VIH (OE0, OE1 pins)
Input Low Voltage, VIL (OE0, OE1 pins)
V
Output High Voltage, VOH
Output Low Voltage, VOL
IOH=-12mA
VDD-0.5
V
IOL=12mA
No Load
V
Operating Supply Current, IDD, at 66.6MHz
Short Circuit Current
TBD
±70
250
7
mA
mA
kW
pF
mV
V
Each output
OE0, OE1
On-Chip Pull-up Resistor
Input Capacitance (OE0, OE1)
Peak-to-Peak Input Voltage, VPP
Common Mode Range, VCMR
PECL inputs
PECL inputs
300
1000
VDD-1.4
VDD-0.6
AC CHARACTERISTICS (VDD = 3.3 V unless noted)
Input Clock Frequency
0
156
MH z
ns
Propagation Delay with load=15pF
Output Clock Rise Time
0.8 to 2.0V
ns
Output Clock Fall Time
2.0 to 0.8V
Note 2
ns
Output Clock Rising Edge Skew
-250
0
5
250
20
20
55
60
ps
Output Enable Time, OE high to output on
Output Disable Time, OE low to tri-state
Output Duty Cycle, Load = 15 pF at VDD/2
Output Duty Cycle, Load = 15 pF at VDD/2
ns
5
ns
0-125 MHz
45
40
50
50
%
125-156 MHz
%
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. Between any two outputs, with equal loading, measured at VDD/2. The maximum skew between any 2 pins is 250 ps not 500 ps.
MDS 74CB163 A
3
Revision 112399
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408)295-9800tel • www.icst.com
PRELIMINARY INFORMATION
MK74CB163
1 to 16 PECL to CMOS Buffalo™ Clock Driver
Maximum Speed
The maximum speed at which the chip can operate can be limited by power dissipation in the package.
Graph 1 shows the operating frequency plotted against load capacitance per pin for a die temperature of
125 °C. This is at VDD = 3.3 V, 70 °C and with 33 Wseries termination resistors. The termination
resistors are essential because they allow a large proportion of the total power to be dissipated outside the
package. Reducing or eliminating the series termination will cause an increase in die temperature. It is not
recommended to operate the chip at die temperatures greater than 125 °C. Also note that the load
capacitance per pin must include PC board parasitics such as trace capacitance. The MK74CB163 can safely
operate up to 156 MHz with all pins loaded at 15 pF.
300
250
Do not operate in this area .
200
150
100
50
0
0
20
40
60
80
Load Capacitance/per pin (pF)
Graph 1
Maximum Speed
MDS 74CB163 A
4
Revision 112399
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408)295-9800tel • www.icst.com
PRELIMINARY INFORMATION
MK74CB163
1 to 16 PECL to CMOS Buffalo™ Clock Driver
Package Outline and Package Dimensions
(For current dimensional specifications, see JEDEC publication no. 95)
28 pin SSOP (QSOP)
Inches
Symbol Min
Millimeters
Max
0.053 0.069
0.004 0.01
Min
1.35
0.10
0.20
0.19
9.80
3.81
5.79
Max
A
A1
B
C
D
E
1.75
0.25
0.30
0.25
10.01
3.99
6.20
E
H
0.008 0.012
0.007 0.010
0.386 0.394
0.150 0.157
0.228 0.244
.025 BSC
H
e
0.635 BSC
L
0.016
0.05
0.41
1.27
D
C
A
B
e
L
A1
Ordering Information
Part/Order Number
Marking
Package
Temperature
MK74CB163R
MK74CB163R
MK74CB163R
28 pin SSOP (QSOP)
Add Tape & Reel
0-70°C
0-70°C
MK74CB163RTR
While the information presented herein has been checked for both accuracy and reliability, ICS Incorporated 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.
Buffalo is a trademark of ICS Incorporated
MDS 74CB163 A
5
Revision 112399
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408)295-9800tel • www.icst.com
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