MK3754ATRLF [IDT]
Clock Generator, 54MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8;
| 型号： | MK3754ATRLF |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Clock Generator, 54MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8 时钟 控制器 微控制器 微控制器和处理器 光电二极管 外围集成电路 晶体 时钟发生器 |
| 文件： | 总4页 (文件大小：59K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MK3754
Low Cost 54 MHz 3.3 Volt VCXO
ICR O CLOC K
Features
Description
The MK3754 is ICS/Microclock’s lowest cost, low
jitter, high performance 3.3 Volt VCXO and PLL
clock synthesizer designed to replace expensive
54 MHz VCXOs. The on-chip Voltage Controlled
Crystal Oscillator accepts a 0 to 3.3 V input voltage
to vary the output clocks by ±100 ppm. Using
ICS/Microclock’s patented VCXO and
analog/digital Phase-Locked Loop (PLL)
techniques, the device uses an inexpensive external
13.5 MHz pullable crystal input to produce a
54 MHz output clock.
• Packaged in 8 pin SOIC
• 3.3 V only operating voltage
• Uses an inexpensive 13.500 MHz external crystal
• On-chip VCXO (patented) with pull range of
200ppm (minimum)
• VCXO tuning voltage of 0 to 3.3 V
• 12mA output drive capability at TTL levels
• Advanced, low power, sub-micron CMOS process
• The A version is the latest, manufactured in a
smaller geometry process. The MK3754A gives a
wider pull range than the MK3754S, and so is
recommended for all new designs, and cost
reductions of existing designs.
The MK3754A is a drop-in replacement to the
earlier MK3754S.
Block Diagram
VIN
X1
Voltage
Controlled
Crystal
PLL/Clock
Synthesis
Circuitry
13.5 MHz
pullable
crystal
Output
Buffer
54MHz
Oscillator
X2
MDS 3754 D
1
Revision 060100
Printed 11/16/00
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com
MK3754
Low Cost 54 MHz 3.3 Volt VCXO
ICR O CLOC K
Pin Assignment
MK3754
1
2
3
4
8
X2
X1
7
6
5
GND
CLK
VDD
VDD
VIN
GND
8 pin (150 mil) SOIC
Pin Descriptions
Number
Name
X1
Description
1
2
3
4
5
6
7
8
Crystal connection. Connect to a pullable 13.5 MHz crystal.
VDD. Connect to +3.3 V.
VDD
VIN
GND
VDD
CLK
GND
X2
Voltage input to VCXO. Zero to 3.3V analog input which controls the frequency of the VCXO.
Connect to ground.
VDD. Connect to +3.3 V.
54 MHz clock output.
Connect to ground.
Crystal connection. Connect to a pullable 13.5 MHz crystal.
Pullable Crystal Specifications:
Correlation (load) Capacitance
C0/C1
ESR
Operating Temperature
Initial Accuracy
14 pF
240 max
35 Wmax
0 to 70 °C
±20 ppm
Temperature plus Aging Stability
±50 ppm
MDS 3754 D
2
Revision 060100
Printed 11/16/00
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com
MK3754
Low Cost 54 MHz 3.3 Volt VCXO
ICR O CLOC K
Electrical Specifications
Parameter
Conditions
Minimum
Typical
Maximum Units
ABSOLUTE MAXIMUM RATINGS (note 1)
Supply voltage, VDD
Referenced to GND
7
VDD+0.5
70
V
V
Inputs and Clock Outputs
Ambient Operating Temperature
Soldering Temperature
Storage temperature
Referenced to GND
Max of 10 seconds
-0.5
0
°C
°C
°C
260
-65
150
DC CHARACTERISTICS (VDD = 3.3 V unless noted)
Operating Voltage, VDD
3.15
2.4
3.45
0.4
V
V
Output High Voltage, VOH
Output Low Voltage, VOL
IOH=-12mA
IOL=12mA
IOH=-4mA
No Load
V
Output High Voltage, VOH, CMOS level
Operating Supply Current, IDD
Short Circuit Current
VDD-0.4
0
V
9
mA
mA
V
±50
VIN, VCXO control voltage
3.3
AC CHARACTERISTICS (VDD = 3.3 V unless noted)
Input Crystal Frequency
13.50000
MH z
ns
Output Clock Rise Time
0.8 to 2.0V
2.0 to 0.8V
At 1.4V
1.5
1.5
60
Output Clock Fall Time
ns
Output Clock Duty Cycle
40
50
%
Maximum Absolute Jitter, short term
54 MHz output pullability, note 2
100
ps
0V £ VIN £ 3.3 V
±100
ppm
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 an ICS approved pullable crystal. The A version has a typical range of ±180 ppm.
External Components
The MK3754 requires a minimum number of external components for proper operation. A decoupling
capacitor of 0.01µF should be connected between VDD and GND on pins 2 and 4, as close to the
MK3754 as possible. A series termination resistor of 33 Wmay be used for the clock output. The input
crystal must be connected as close to the chip as possible. The input crystal should be a parallel mode,
pullable, AT cut, 13.5 MHz, with 14 pF load capacitance. Consult ICS for recommended suppliers.
IMPORTANT - read application note MAN05 before laying out the PCB.
MDS 3754 D
3
Revision 060100
Printed 11/16/00
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com
MK3754
Low Cost 54 MHz 3.3 Volt VCXO
ICR O CLOC K
Package Outline and Package Dimensions
(For current dimensional specifications, see JEDEC Publication No. 95.)
8 pin SOIC
Inches
Min
Millimeters
Symbol
A
Max
Min
1.35
0.10
0.33
0.19
4.80
3.80
1.27 BSC
5.80
0.25
0.41
Max
0.0532 0.0688
0.0040 0.0098
0.0130 0.0200
0.0075 0.0098
0.1890 0.1968
0.1497 0.1574
.050 BSC
1.75
0.24
0.51
0.24
5.00
4.00
A1
B
C
E
H
INDEX
AREA
D
E
e
H
h
0.2284 0.2440
0.0099 0.0195
0.0160 0.0500
6.20
0.50
1.27
1
2
h x 45°
L
D
A
A1
C
B
e
L
Ordering Information
Part/Order Number
MK3754A
Marking
MK3754A
MK3754A
MK3754S
MK3754S
Shipping packaging
tubes
Package
Temperature
0-70 °C
8 pin SOIC
8 pin SOIC
8 pin SOIC
8 pin SOIC
MK3754ATR
MK3754S
tape and reel
tubes
0-70 °C
0-70 °C
MK3754STR
tape and reel
0-70 °C
CHANGE HISTORY
Version Date first published
Status
Comments
D
C
B
A
6/01/00
12/29/99
5/25/99
4/19/99
Added A version
Preliminary
Preliminary
Preliminary
Added JEDEC dimensions. Changed VDD to ±5%. Added crystal specs.
Updated specs for crystal capacitance, IDD, jitter.
Original
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.
MDS 3754 D
4
Revision 060100
Printed 11/16/00
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com
相关型号：
©2020 ICPDF网 联系我们和版权申明