IDT MK2703BS Pll audio clock synthesizer Datasheet

DATASHEET
MK2703B
PLL AUDIO CLOCK SYNTHESIZER
Description
Features
The MK2703B is a low-cost, low-jitter, high performance
PLL clock synthesizer designed to replace oscillators and
PLL circuits in set-top box and multimedia systems. Using
ICS’ patented analog Phase Locked Loop (PLL)
techniques, the device uses a 27 MHz crystal or clock input
to produce a buffered reference clock and a selectable
audio clock.
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ICS manufactures the largest variety of Set-Top Box and
multimedia clock synthesizers for all applications. Consult
ICS to eliminate VCXOs, crystals and oscillators from your
board.
Packaged in 8-pin SOIC
Available in RoHS compliant package
Uses an inexpensive, fundamental mode crystal or clock
Patented zero ppm synthesis error in all clocks
All frequencies are frequency locked
Advanced, low power, sub-micron CMOS process
Operating voltage of 3.3 V or 5 V
Industrial temperature version available
Block Diagram
VDD
PLL Clock
Synthesis
and Control
Circuitry
S1:0 2
Audio Clock
X1
27 MHz
crystal or
clock input
Crystal
Oscillator
27M
X2
Capacitors are required for crystal tuning
IDT™ / ICS™ PLL AUDIO CLOCK SYNTHESIZER
GND
1
MK2703B
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PLL AUDIO CLOCK SYNTHESIZER
CLOCK SYNTHESIZER
Pin Assignment
AUDIO CLOCK OUTPUT SELECT TABLE
S1
S0
CLK (MHz)
X1
1
8
X2
0
0
8.192
VDD
2
7
S0
0
1
11.2896
GND
3
6
S1
1
0
12.288
27M
4
5
CLK
1
1
24.576
Key: 0 = Connect pin directly to ground
8-pin (150 mil) SOIC
1 = Connect pin directly to VDD
Pin Descriptions
Pin
Pin
Number Name
Pin
Type
Pin Description
1
X1
XI
Crystal Connection. Connect to a 27 MHz fundamental crystal or clock.
2
VDD
Power
Connect to +3.3 V or +5 V.
3
GND
Power
Connect to ground.
4
27M
Output
27 MHz buffered reference clock output.
5
CLK
Output
Audio clock output per table above.
6
S1
Input
Audio clock frequency select input #1. Determines CLK output per table
above. Internal pull-up resistor.
7
S0
Input
Audio clock frequency select input #0. Determines CLK output per table
above. Internal pull-up resistor.
8
X2
XO
Crystal connection to a 27 MHz crystal, or leave unconnected for clock
output.
External Components
Decoupling Capacitor
Series Termination Resistor
As with any high-performance mixed-signal IC, the
MK2703B must be isolated from system power supply noise
to perform optimally.
A 33Ω terminating resistor can be used next to the clock
outputs for trace lengths over one inch.
Crystal Load Capacitors
A decoupling capacitor of 0.01µF must be connected
between VDD and GND on pins 2 and 3. It must be
connected close to the MK2703B to minimize lead
inductance. No external power supply filtering is required for
the MK2703B.
IDT™ / ICS™ PLL AUDIO CLOCK SYNTHESIZER
The total on-chip capacitance is approximately 16 pF. A
parallel resonant, fundamental mode, AT cut 27 MHz crystal
should be used. The device crystal connections should
include pads for small capacitors from X1 to ground and
from X2 to ground. These capacitors are used to adjust the
2
MK2703B
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PLL AUDIO CLOCK SYNTHESIZER
CLOCK SYNTHESIZER
connected from each of the pins X1 and X2 to ground.
stray capacitance of the board to match the nominally
required crystal load capacitance. Because load
capacitance can only be increased in this trimming process,
it is important to keep stray capacitance to a minimum by
using very short PCB traces (and no vias) between the
crystal and device. Crystal capacitors, if needed, must be
The value (in pF) of these crystal caps should equal (CL -16
pF)*2. In this equation, CL= crystal load capacitance in pF.
Example: For a crystal with an 18 pF load capacitance, each
crystal capacitor would be 4 pF [(18-16) x 2] = 4.
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the MK2703B. 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
-0.5 V to 7 V
All Inputs and Outputs
-0.5 V to VDD+0.5 V
Ambient Operating Temperature, MK2703BS (commercial)
0 to +70°C
Ambient Operating Temperature, MK2703BSI (industrial)
-40 to +85°C
Storage Temperature
-65 to +150°C
Soldering Temperature
260°C
Recommended Operation Conditions
Parameter
Min.
Max.
Units
-40
+85
°C
+3.13
+5.50
V
Ambient Operating Temperature
Power Supply Voltage (measured in respect to GND)
Typ.
DC Electrical Characteristics
VDD=3.3 V ±5% , Ambient temperature -40 to +85°C, unless stated otherwise
Parameter
Symbol
Conditions
Operating Voltage
VDD
Input High Voltage
VIH
X1 pin only
Note 1
Input Low Voltage
VIL
X1 pin only
Note 1
Input High Voltage
VIH
S0, S1 pins
Input Low Voltage
VIL
S0, S1 pins
Output High Voltage
VOH
IOH = -12 mA
IDT™ / ICS™ PLL AUDIO CLOCK SYNTHESIZER
Min.
Typ.
3.13
3
Max.
Units
5.50
V
(VDD/2)+1 VDD/2
V
VDD/2 (VDD/2)-1
2.0
V
V
0.8
2.4
V
V
MK2703B
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PLL AUDIO CLOCK SYNTHESIZER
Parameter
CLOCK SYNTHESIZER
Symbol
Conditions
Min.
Typ.
Max.
Units
0.4
V
Output Low Voltage
VOL
IOL = 12 mA
Output High Voltage, CMOS level
VOH
IOH = -4 mA
Operating Supply Current
IDD
No load
VDD = 3.3 V
10
mA
CLK output
±50
mA
S0, S1 pins
5
pF
20
Ω
Short Circuit Current
Input Capacitance
CIN
VDD-0.4
Nominal Output Impedance
Frequency Synthesis Error
Internal Pull-Up Resistor
V
All Clocks
RPUP
0
S1, S0 pins
ppm
750
kΩ
Note 1: CMOS level input. Nominal trigger point is VDD/2 for 3.3 V or 5 V operation
AC Electrical Characteristics
VDD = 3.3 V ±5%, Ambient Temperature -40 to +85° C, unless stated otherwise
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Input Crystal or Clock Frequency
FIN
Output Clock Rise Time
tOR
0.8 to 2.0 V, Note 1
0.7
1.5
ns
Output Clock Fall Time
tOF
2.0 to 8.0 V, Note 1
0.7
1.5
ns
Clock Stabilization Time After
Power Up
10
ms
Changing Frequency Setting
10
ms
60
%
Output Clock Duty Cycle
Maximum Absolute Jitter, short
term
27
at VDD/2, Note 1
tja
40
Deviation from
mean
MHz
±150
ps
Note 1: Measured with 15 pF load.
Thermal Characteristics
Parameter
Thermal Resistance Junction to
Ambient
Thermal Resistance Junction to Case
IDT™ / ICS™ PLL AUDIO CLOCK SYNTHESIZER
Symbol
Conditions
Min.
Typ.
Max. Units
θJA
Still air
150
°C/W
θJA
1 m/s air flow
140
°C/W
θJA
3 m/s air flow
120
°C/W
40
°C/W
θJC
4
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PLL AUDIO CLOCK SYNTHESIZER
CLOCK SYNTHESIZER
Marking Diagram – MK2703BS
8
Marking Diagram – MK2703BSI
8
5
MK2703BI
######
YYWW
MK2703B
######
YYWW
1
1
4
8
5
5
2703BIL
######
YYWW
MK2703BL
######
YYWW
1
4
Marking Diagram – MK2703BSILF
Marking Diagram – MK2703BSLF
8
5
1
4
4
Notes:
1. ###### is the lot number.
2. YYWW is the last two digits of the year and the week number that the part was assembled.
3. “L” or “LF” denotes Pb (lead) free packaging.
4. “I” denotes industrial temperature range.
5. Bottom marking: (origin). Origin = country of origin if not USA.
IDT™ / ICS™ PLL AUDIO CLOCK SYNTHESIZER
5
MK2703B
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PLL AUDIO CLOCK SYNTHESIZER
CLOCK SYNTHESIZER
Package Outline and Package Dimensions (8-pin SOIC, 150 Mil. Narrow Body)
Package dimensions are kept current with JEDEC Publication No. 95
Millimeters
8
Symbol
E
A
A1
B
C
D
E
e
H
h
L
α
H
INDEX
AREA
1 2
D
Min
Max
1.35
1.75
0.10
0.25
0.33
0.51
0.19
0.25
4.80
5.00
3.80
4.00
1.27 BASIC
5.80
6.20
0.25
0.50
0.40
1.27
0°
8°
Inches*
Min
Max
.0532
.0688
.0040
.0098
.013
.020
.0075
.0098
.1890
.1968
.1497
.1574
0.050 BASIC
.2284
.2440
.010
.020
.016
.050
0°
8°
*For reference only. Controlling dimensions in mm.
A
h x 45
A1
C
-Ce
B
SEATING
PLANE
L
.10 (.004)
C
Ordering Information
Part / Order Number
Marking
Shipping Packaging
Package
Temperature
MK2703BS
MK2703BSTR
MK2703BSI
MK2703BSITR
MK2703BSLF
MK2703BSLFTR
MK2703BSILF
MK2703BSILFTR
see page 5
Tubes
Tape and Reel
Tubes
Tape and Reel
Tubes
Tape and Reel
Tubes
Tape and Reel
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
0 to +70° C
0 to +70° C
-40 to +85° C
-40 to +85° C
0 to +70° C
0 to +70° C
-40 to +85° C
-40 to +85° C
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™ PLL AUDIO CLOCK SYNTHESIZER
6
MK2703B
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MK2703B
PLL AUDIO CLOCK SYNTHESIZER
CLOCK SYNTHESIZER
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www.IDT.com
For Sales
For Tech Support
800-345-7015
408-284-8200
Fax: 408-284-2775
<product line email>
<product line phone>
Corporate Headquarters
Asia Pacific and Japan
Europe
Integrated Device Technology, Inc.
6024 Silver Creek Valley Road
San Jose, CA 95138
United States
800 345 7015
+408 284 8200 (outside U.S.)
Integrated Device Technology
Singapore (1997) Pte. Ltd.
Reg. No. 199707558G
435 Orchard Road
#20-03 Wisma Atria
Singapore 238877
+65 6 887 5505
IDT Europe, Limited
Prime House
Barnett Wood Lane
Leatherhead, Surrey
United Kingdom KT22 7DE
+44 1372 363 339
© 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
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