MK3711DMTR [IDT]
Clock Generator, 16MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8;
| 型号： | MK3711DMTR |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Clock Generator, 16MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8 光电二极管 |
| 文件： | 总7页 (文件大小：174K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DATASHEET
LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
MK3711
Description
Features
The MK3711D is a drop-in replacement for the original
MK3711S device. Compared to these earlier devices, the
MK3711D offers a wider operating frequency range and
improved power supply noise rejection.
• MK3711D is a drop-in replacement for the earlier
MK3711S device
• MK3711D offers an 8-16 MHz output frequency range
and improved power supply noise rejection
Used in conjunction with an external pullable quartz crystal,
this monolithic integrated circuit replaces more costly hybrid
(canned) VCXO devices. The MK3711 is designed primarily
for data and clock recovery applications within end products
such as ADSL modems, set-top box receivers, and telecom
systems.
• Uses an inexpensive 8 to 16 MHz external crystal
• On-chip VCXO with guaranteed pull range of 115 ppm
minimum
• VCXO tuning voltage 0 to 3.3 V
• Packaged in 8 pin SOIC (150 mil wide)
• Available in Pb (lead) free package
• Industrial temperature range available
The MK3711D exhibits a moderate VCXO gain of
120ppm/V typical, when used with a high quality external
pullable quartz crystal.
The frequency of the on-chip VCXO is adjusted by an
external control voltage input into pin VIN. Since VIN is a
high impedance input, it can be driven directly from an
PWM RC integrator circuit. Frequency output increases
with VIN voltage input. The usable range of VIN is 0 to 3V.
MK3711B is Obsolete
Block Diagram
VDD
VIN
X1
X2
Voltage
Controlled
Crystal
8-16 MHz
Pullable
Crystal
8-16 MHz
Oscillator
GND
IDT™ / ICS™ LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
1
MK3711
REV I 062405
MK3711
LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
VCXO AND MULTIPLIER
Pin Assignment
X1
VDD
VI N
8
7
6
5
1
2
3
4
X2
DC
REF
DC
GND
MK3711D
8 Pi n (150 mi l ) SOI C
Pin Descriptions
Pin
Pin
Pin
Type
Pin Description
Number Name
1
2
3
XI
Input
Crystal connection. Connect to the external pullable crystal.
VDD
VIN
Power Connect to +3.3 V (0.01uf decoupling capacitor recommended).
Input
Voltage input to VCXO — 0 to 3.3 V analog input which controls the
oscillation frequency of the VCXO.
4
5
6
GND
DC
Power Connect to ground.
—
Do not connect anything to this pin.
REF
Output VCXO CMOS level clock output matches the nominal frequency of the
crystal.
7
8
DC
X2
—
Do not connect anything to this pin.
Input
Crystal connection. Connect to the external pullable crystal.
IDT™ / ICS™ LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
2
MK3711
REV I 062405
MK3711
LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
VCXO AND MULTIPLIER
pF. Contact ICS MicroClock applications regarding the use
of a crystal below 13.5 MHz.
External Component Selection
The MK3711 requires a minimum number of external
components for proper operation.
The external crystal must be connected as close to the chip
as possible and should be on the same side of the PCB as
the MK3711. There should be no vias between the crystal
pins and the X1 and X2 device pins. There should be no
signal traces underneath or close to the crystal. See
application note MAN05.
Decoupling Capacitor
A decoupling capacitor of 0.01µF must be connected
between VDD (pin 2) and GND (pin 4), as close to these
pins as possible. For optimum device performance, the
decoupling capacitor should be mounted on the component
side of the PCB. Avoid the use of vias in the decoupling
circuit.
Crystal Tuning Load Capacitors
The crystal traces should include pads for small fixed
capacitors, one between X1 and ground, and another
between X2 and ground. The need for these capacitors is
determined at system prototype evaluation, and is
influenced by the particular crystal used (manufacture and
frequency) and by PCB layout. The typical required
capacitor value is 1 to 4 pF.
Series Termination Resistor
When the PCB trace between the clock output (CLK, pin 5)
and the load is over 1 inch, series termination should be
used. 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.
The procedure for determining the value of these capacitors
can be found in application note MAN05.
Quartz Crystal
The MK3711 VCXO function consists of the external crystal
and the integrated VCXO oscillator circuit. To assure the
best system performance (frequency pull range) and
reliability, a crystal device with the recommended
parameters (shown below) must be used, and the layout
guidelines discussed in the following section shown must be
followed.
The frequency of oscillation of a quartz crystal is determined
by its “cut” and by the load capacitors connected to it. The
MK3711 incorporates on-chip variable load capacitors that
“pull” (change) the frequency of the crystal. The crystal
specified for use with the MK3711 is designed to have zero
frequency error when the total of on-chip + stray
capacitance is 14 pF.
Recommended Crystal Parameters:
Initial Accuracy at 25°C
Temperature Stability
Aging
Load Capacitance
Shunt Capacitance, C0
C0/C1 Ratio
20 ppm
30 ppm
20 ppm
14 pf
7 pF Max
250 Max
35 Ω Max
Equivalent Series Resistance
For crystal frequencies between 13.5 MHz and 16 MHz, the
nominal crystal load capacitance specification should be 14
IDT™ / ICS™ LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
3
MK3711
REV I 062405
MK3711
LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
VCXO AND MULTIPLIER
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the MK3711. These ratings, which are
standard values for ICS 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.
Item
Rating
Supply Voltage, VDD
All Inputs and Outputs
7 V
-0.5 V to VDD+0.5 V
0 to +70°C
Ambient Operating Temperature (commercial)
Ambient Operating Temperature (industrial)
Storage Temperature
-40 to +85°C
-65 to +150°C
260°C
Soldering Temperature
Recommended Operating Conditions
Parameter
Min.
Typ.
Max.
+70
Units
°C
Ambient Operating Temperature (commercial)
Ambient Operating Temperature (industrial)
Power Supply Voltage (measured in respect to GND)
Reference crystal parameters
0
-40
+85
°C
+3.15
+3.45
V
Refer to page 3
IDT™ / ICS™ LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
4
MK3711
REV I 062405
MK3711
LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
VCXO AND MULTIPLIER
DC Electrical Characteristics
VDD=3.3 V ±±% , Ambient temperature -40 to +85°C, unless stated otherwise
Parameter
Symbol
Conditions
Min.
3.15
2.4
Typ.
Max.
Units
Operating Voltage
VDD
3.45
V
V
V
V
Output High Voltage
Output Low Voltage
V
I
I
I
= -12 mA
= 12 mA
= -4 mA
OH
OH
OL
OH
V
0.4
OL
Output High Voltage (CMOS
Level)
V
VDD-0.4
OH
Operating Supply Current
IDD
Output = 12 MHz,
no load
7
mA
Short Circuit Current
I
50
mA
V
OS
VIN, VCXO Control Voltage
V
0
3.3
IA
AC Electrical Characteristics
VDD = 3.3 V ±±%, Ambient Temperature -40 to +85° C, unless stated otherwise
Parameter
Output Frequency
Crystal Pullability, Note 2
VCXO Gain
Symbol
Conditions
Min. Typ. Max. Units
F
8
16
MHz
ppm
O
F
0V< VIN < 3.3 V, Note 1
115
P
MK3711D, Note 3
Output Rise Time
Output Fall Time
VIN = VDD/2 1 V, Note 1
120
ppm/V
ns
t
0.8 to 2.0 V, C =15 pF
1.5
1.5
60
OR
L
t
2.0 to 0.8 V, C =15 pF
ns
OF
L
Output Clock Duty Cycle
t
Measured at 1.4 V, C =15 pF
40
50
%
D
L
Maximum Output Jitter,
short term
t
C =15 pF
100
ps
J
L
Note 1: External crystal device must conform with Pullable Crystal Specifications listed on page 3.
Note 2: Original MK3711S and MK3711A provided 100 ppm crystal pullability.
Note 3: Original MK3711S and MK3711A provided 100 and 170 ppm/V respectively.
IDT™ / ICS™ LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
5
MK3711
REV I 062405
MK3711
LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
VCXO AND MULTIPLIER
Package Outline and Package Dimensions (8-pin SOIC, 1±0 Mil. Narrow Body)
Package dimensions are kept current with JEDEC Publication No. 95
Millimeters
Inches
Symbol
Min
Max
1.75
0.25
0.51
0.25
5.00
4.00
Min
Max
8
A
A1
B
C
D
E
e
1.35
0.10
0.33
0.19
4.80
3.80
.0532
.0040
.013
.0688
.0098
.020
.0075
.1890
.1497
.0098
.1968
.1574
E
H
INDEX
AREA
1.27 BASIC
0.050 BASIC
H
h
5.80
6.20
0.50
1.27
8°
.2284
.010
.016
0°
.2440
.020
.050
8°
1
2
0.25
0.40
0°
D
L
α
*For reference only. Controlling dimensions in mm.
A
h x 45
A1
C
- C -
e
SEATING
PLANE
B
L
.10 (.004)
C
Ordering Information
Part / Order Number
Marking
Shipping Packaging
Tubes
Package
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
Temperature
0 to +70° C
0 to +70° C
0 to +70° C
0 to +70° C
-40 to +85° C
-40 to +85° C
-40 to +85° C
-40 to +85° C
MK3711DM
MK3711DMTR
MK3711DMLF
MK3711DMLFTR
MK3711DMI
MK3711DMITR
MK3711DMILF
MK3711DMILFTR
MK3711DM
MK3711DM
3711DMLF
3711DMLF
3711DMI
3711DMI
3711DMIL
3711DMIL
Tape and Reel
Tubes
Tape and Reel
Tubes
Tape and Reel
Tubes
Tape and Reel
Parts that are ordered with a "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant.
While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (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.
IDT™ / ICS™ LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
6
MK3711
REV I 062405
MK3711
LOW COST 8 TO 16 MHZ 3.3 VOLT VCXO
VCXO AND MULTIPLIER
Innovate with IDT and accelerate your future networks. Contact:
www.IDT.com
For Sales
800-345-7015
408-284-8200
Fax: 408-284-2775
For Tech Support
<product line email>
<product line phone>
Corporate Headquarters
Integrated Device Technology, Inc.
6024 Silver Creek Valley Road
San Jose, CA 95138
Asia Pacific and Japan
Integrated Device Technology
Singapore (1997) Pte. Ltd.
Reg. No. 199707558G
435 Orchard Road
Europe
IDT Europe, Limited
Prime House
Barnett Wood Lane
Leatherhead, Surrey
United Kingdom KT22 7DE
+44 1372 363 339
United States
800 345 7015
#20-03 Wisma Atria
+408 284 8200 (outside U.S.)
Singapore 238877
+65 6 887 5505
© 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device
Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered
trademarks used to identify products or services of their respective owners.
Printed in USA
相关型号：
©2020 ICPDF网 联系我们和版权申明