MK3200GLFT [IDT]
Clock Generator, 0.032768MHz, CMOS, PDSO8, 3 MM, LEAD FREE, MSOP-8;
| 型号： | MK3200GLFT |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Clock Generator, 0.032768MHz, CMOS, PDSO8, 3 MM, LEAD FREE, MSOP-8 时钟 光电二极管 外围集成电路 晶体 |
| 文件： | 总8页 (文件大小：90K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DATASHEET
32.768 KHZ CLOCK OSCILLATOR
MK3200
Description
Features
The MK3200 is IDT’s lowest cost, low power clock oscillator
that generates a low power 32.768 kHz output from an
inexpensive 32.768 kHz crystal. This part includes a power
down pin and allows you to tri-state the output clock for
in-circuit testing.
• Packaged in 8-pin SOIC or 8-pin MSOP (3.00 mm body)
• Pb (lead) free package
• Operates from 2.5 V to 5 V
• Consumes only 3.5 µA in normal operation
• Accepts an inexpensive 32.768 kHz crystal input
• Offers power down mode
IDT manufactures the largest variety of clock synthesizers
for all applications. If more clock outputs are needed,
including MHz frequencies, see the MK32xx family of parts.
Consult IDT to eliminate VCXOs, crystals and oscillators
from your board.
• Includes an Output Enable pin to tri-state the output for
in-circuit testing
• Advanced, low power, sub-micron CMOS process
• For other 32.768 kHz-based clocks with MHz outputs,
please consult IDT
• Industrial temperature version available
Block Diagram
VDD
Power Down
X1
Crystal
Oscillator
32.768 kHz
Crystal
32.768 kHz
Clock
X2
GND
OE
IDT® 32.768 KHZ CLOCK OSCILLATOR
1
MK3200
REV H 073012
MK3200
32.768 KHZ CLOCK OSCILLATOR
32 KHZ OSCILLATOR
Pin Assignment
Power Down Select Table
PD
0
32.768k
Oscillator
X1
VDD
8
7
6
5
1
2
3
4
X2
On
On
GND
PD
1
Low
Off
GND
32. 768k
OE
Output Enable Select Table
8-pin (150 mil) SOIC or
8-pin MSOP (3.00 mm body)
OE
32.768k
Oscillator
0
Tri state (Hi-Z)
On
1
On
On
0 = connect directly to GND.
1 = connect directly to VDD.
Pin Descriptions
Pin
Number
Pin
Name
Pin
Type
Pin Description
X1
VDD
GND
32.768k
OE
Input
Crystal connection. Connect to a 32.768 kHz crystal.
1
2
3
4
5
6
7
8
Power Connect to +3.3 V.
Power Connect to ground.
Input
32.768 kHz clock output.
Output Output Enable.
PD
Input
Input
Power down pin. Turns off entire chip when high.
Connect to ground.
GND
X2
Output Crystal connection. Connect to a 32.768 kHz crystal.
IDT® 32.768 KHZ CLOCK OSCILLATOR
2
MK3200
REV H 073012
MK3200
32.768 KHZ CLOCK OSCILLATOR
32 KHZ OSCILLATOR
External Components
Series Termination Resistor
Clock output traces over one inch should use series
termination. To series terminate a 50Ω trace (a commonly
used trace impedance), place a 33Ω resistor in series with
the clock line, as close to the clock output pin as possible.
The nominal impedance of the clock output is 20Ω.
Decoupling Capacitor
As with any high-performance mixed-signal IC, the MK3200
must be isolated from system power supply noise to perform
optimally.
A decoupling capacitor of 0.01µF must be connected
between VDD and the PCB ground plane.
PCB Layout Recommendations
For optimum device performance and lowest output phase
noise, the following guidelines should be observed.
1) The 0.01µF decoupling capacitor should be mounted on
the component side of the board as close to the VDD pin as
possible. No vias should be used between the decoupling
capacitor and VDD pin. The PCB trace to VDD pin should
be kept as short as possible, as should the PCB trace to the
ground via. Distance of the ferrite bead and bulk decoupling
from the device is less critical.
2) To minimize EMI, the 33Ω series termination resistor (if
needed) should be placed close to the clock output.
3) An optimum layout is one with all components on the
same side of the board, minimizing vias through other signal
layers. Other signal traces should be routed away from the
MK3200. This includes signal traces just underneath the
device, or on layers adjacent to the ground plane layer used
by the device.
4) The input crystal must be connected as close to the chip
as possible. The input crystal should be a parallel mode
crystal with a 12 pF load capacitance.
IDT® 32.768 KHZ CLOCK OSCILLATOR
3
MK3200
REV H 073012
MK3200
32.768 KHZ CLOCK OSCILLATOR
32 KHZ OSCILLATOR
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the MK3200. These ratings, which are
standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these
or any other conditions above those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical
parameters are guaranteed only over the recommended operating temperature range.
Parameter
Condition
Min.
Typ.
Max.
7
Units
V
Supply Voltage, VDD
Inputs
Referenced to GND
Referenced to GND
Referenced to GND
-0.5
-0.5
-65
VDD+ 0.5
VDD+ 0.5
150
V
Clock Outputs
V
Storage Temperature
Soldering Temperature
Junction Temperature
°C
°C
°C
Max 10 seconds
260
125
Recommended Operation Conditions
Parameter
Min.
-40
Typ.
Max.
+85
Units
° C
Ambient Operating Temperature
Power Supply Voltage (measured in respect to GND)
+3.15
+3.3
+3.45
V
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±±%, Ambient Temperature -40 to +85° C
Parameter
Operating Voltage
Supply Current
Symbol
VDD
Conditions
Min.
Typ.
Max.
Units
2.375
5.250
V
IDD
No load, OE=1
PD = 0
3.5
3.5
μA
μA
Output High Voltage
(CMOS level)
V
I
= -1.5 mA
VDD-0.4
2.4
V
OH
OH
Output High Voltage
Output Low Voltage
Short Circuit Current
V
I
I
= -3 mA
= 3mA
V
V
OH
OH
V
0.4
OL
OL
I
6
mA
OS
IDT® 32.768 KHZ CLOCK OSCILLATOR
4
MK3200
REV H 073012
MK3200
32.768 KHZ CLOCK OSCILLATOR
32 KHZ OSCILLATOR
AC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±±%, Ambient Temperature -40 to +85° C
Parameter
Symbol
Conditions
Min.
Typ. Max. Units
Input Frequency
F
32.768
kHz
ns
IN
Output Rise Time
Output Fall Time
Duty Cycle
t
20% to 80%, Note 1
80% to 20%, Note 1
at VDD/2
8
8
OR
t
ns
OF
40
50
0
60
30
%
Input Crystal Accuracy
ppm
Thermal Characteristics (8SOIC)
Parameter
Symbol
Conditions
Min.
Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
θ
θ
θ
Still air
135
93
° C/W
° C/W
° C/W
° C/W
JA
JA
JA
JC
1 m/s air flow
3 m/s air flow
78
Thermal Resistance Junction to Case
60
Thermal Characteristics (8MSOP)
Parameter
Symbol
Conditions
Min.
Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
Still air
95
° C/W
JA
Thermal Resistance Junction to Case
θ
48
° C/W
JC
IDT® 32.768 KHZ CLOCK OSCILLATOR
5
MK3200
REV H 073012
MK3200
32.768 KHZ CLOCK OSCILLATOR
32 KHZ OSCILLATOR
Package Outline and Package Dimensions (8-pin MSOP, 3.00 mm Body)
Package dimensions are kept current with JEDEC Publication No. 95
Millimeters
Min Max
Inches*
8
Symbol
Min
Max
A
A1
A2
b
--
1.10
0.15
0.97
0.38
0.23
--
0.043
0.006
0.038
0.015
0.009
0
0
0.79
0.22
0.08
0.031
0.008
0.003
E1
E
INDEX
AREA
C
D
E
3.00 BASIC
4.90 BASIC
3.00 BASIC
0.65 Basic
0.118 BASIC
0.193 BASIC
0.118 BASIC
0.0256 Basic
E1
e
1
2
L
0.40
0.80
0.016
0.032
D
α
0°
8°
0°
8°
aaa
-
0.10
-
0.004
*For reference only. Controlling dimensions in mm.
A
2
A
A
1
c
- C -
e
SEATING
PLANE
b
L
aaa
C
IDT® 32.768 KHZ CLOCK OSCILLATOR
6
MK3200
REV H 073012
MK3200
32.768 KHZ CLOCK OSCILLATOR
32 KHZ OSCILLATOR
Package Outline and Package Dimensions (8-pin SOIC, 1±0 Mil. Body)
Package dimensions are kept current with JEDEC Publication No. 95
Millimeters
Inches
8
Symbol
Min
1.35
0.10
0.33
0.19
4.80
3.80
Max
1.75
0.25
0.51
0.25
5.00
4.00
Min
Max
A
A1
B
.0532
.0040
.013
.0688
.0098
.020
E
H
INDEX
AREA
C
D
E
.0075
.1890
.1497
.0098
.1968
.1574
e
H
h
1.27 BASIC
0.050 BASIC
1
2
5.80
0.25
0.40
6.20
0.50
1.27
.2284
.010
.0
.2440
.020
.050
D
L
α
0°
8°
0°
8°
A
h x 45
A1
C
- C -
e
SEATING
PLANE
B
L
.10 (.004)
C
Ordering Information
Part / Order Number
MK3200SLF
Marking
MK3200SL
MK3200SL
MK3200IL
MK3200IL
3200GL
Shipping Packaging
Tubes
Package
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin MSOP
8-pin MSOP
Temperature
0 to +70° C
0 to +70° C
-40 to +85° C
-40 to +85° C
0 to +70° C
0 to +70° C
MK3200SLFTR
MK3200SILF
MK3200SILFTR
MK3200GLF
Tape and Reel
Tubes
Tape and Reel
Tubes
MK3200GLFT
3200GL
Tape and Reel
While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology (IDT) 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 IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT
does not authorize or warrant any IDT product for use in life support devices or critical medical instruments.
IDT® 32.768 KHZ CLOCK OSCILLATOR
7
MK3200
REV H 073012
MK3200
32.768 KHZ CLOCK OSCILLATOR
32 KHZ OSCILLATOR
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For Sales
800-345-7015
408-284-8200
Fax: 408-284-2775
For Tech Support
www.idt.com/go/clockhelp
Corporate Headquarters
Integrated Device Technology, Inc.
www.idt.com
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trademarks used to identify products or services of their respective owners.
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