Clock Synthesis
and Control
Circuitry
MK1413
MPEG Audio Clock Synthesizer
MDS 1413 B
1
Revision 091697
Printed 11/15/00
Integrated Circuit Systems, Inc.525
Race StreetSan JoseCA95126(408)295-9800telwww.icst.com
PRELIMINARY INFORMATION
The MK1413 is the ideal way to generate clocks
for MPEG audio devices in computers. The device
uses MicroClock's proprietary mixture of analog
and digital Phase-Locked Loop (PLL) technology
to synthesize one of four frequencies from the
14.31818 MHz reference. In an 8 pin SOIC, the
MK1413 can save component count, board space,
and cost over crystals and oscillators, and increase
reliability by eliminating three expensive
mechanical devices from the board.
MicroClock offers many other clocks for
computers and computer peripherals. Consult
MicroClock when you need to remove crystals and
oscillators from your board.
Block Diagram
Description
Features
Packaged in 8 pin SOIC
Input crystal or clock frequency of 14.31818 MHz
Provides master MPEG clocks for 32 kHz,
44.1 kHz and 48 kHz sampling rates
Output clock frequencies of 8.192 MHz,
11.2896 MHz, 12.288 MHz, and 16.9344 MHz
Low jitter
25mA drive capability at TTL levels
3.3V or 5V10% supply voltage
Advanced, low power CMOS process
Clock
Buffer/
Crystal
Oscillator
VDD GND
X1
X2
14.31818 MHz
crystal
or clock
Output
Buffer
CLK
S1
S0
MK1413
MPEG Audio Clock Synthesizer
MDS 1413 B
2
Revision 091697
Printed 11/15/00
Integrated Circuit Systems, Inc.525
Race StreetSan JoseCA95126(408)295-9800telwww.icst.com
PRELIMINARY INFORMATION
Number
Name
Type Description
1
X1
I
Crystal Connection. Connect to a 14.31818 MHz crystal or clock.
2
VDD
P
Connect to +3.3V or +5V.
3
GND
P
Connect to ground.
4
NC
-
No Connect.
5
CLK
O
Audio Clock Output as per table above.
6
S1
I
Frequency Select 1 Input. Determines CLK output as per table above.
7
S0
I
Frequency Select 0 Input. Determines CLK output as per table above.
8
X2
O
Crystal Connection to a 14.31818 MHz crystal, or leave unconnected for clock input.
Pin Descriptions
Key: I = Input, O = output, P = power supply connection
Pin Assignment
External Components/Crystal Selection
A minimum number
of external components are required for proper oscillation. For a crystal input, one
load capacitor should be connected to each of the X1 and X2 pins and ground, and a parallel resonant
14.31818 MHz crystal is recommended. The value (in pF) of each crystal load capacitor should equal
(CL-4)*2, where CL is the crystal's load (correlation) capacitance in pF. The frequency tolerance of the
crystal should be 50ppm or better. For a clock input, connect to X1 and leave X2 unconnected. A
decoupling capacitor of 0.1F should be connected between VDD and GND on pins 2 and 3, and 33
terminating resistor may be used on the clock output if the trace is longer than 1 inch.
1
8
2
3
4
7
6
5
X1
S0
GND
X2
VDD
CLK
8 pin SOIC
NC
S1
S1
S0
Audio Clock
Accuracy
pin 6
pin 7
pin 5
(ppm)
0
0
8.192 MHz
-2 ppm
0
1
11.2896 MHz
-24 ppm
1
0
12.288 MHz
-2 ppm
1
1
16.9344 MHz
-24 ppm
Audio Clock Output Select Table
MK1413
MPEG Audio Clock Synthesizer
MDS 1413 B
3
Revision 091697
Printed 11/15/00
Integrated Circuit Systems, Inc.525
Race StreetSan JoseCA95126(408)295-9800telwww.icst.com
PRELIMINARY INFORMATION
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. Typical values are at 25C.
Electrical Specifications
Parameter
Conditions
Minimum
Typical
Maximum
Units
ABSOLUTE MAXIMUM RATINGS (note 1)
ABSOLUTE MAXIMUM RATINGS (note 1)
Supply Voltage, VDD
Referenced to GND
7
V
Inputs
Referenced to GND
-0.5
VDD+.5V
V
Clock Outputs
Referenced to GND
-0.5
VDD+.5V
V
Ambient Operating Temperature
0
70
C
Soldering Temperature
Max of 10 seconds
260
C
Storage temperature
-65
150
C
DC CHARACTERISTICS (at 5.0V unless otherwise noted)
DC CHARACTERISTICS (at 5.0V unless otherwise noted)
DC CHARACTERISTICS (at 5.0V unless otherwise noted)
Operating Voltage, VDD
3
5.5
V
Input High Voltage, VIH, input clock only
Clock input
(VDD/2)+1
VDD/2
V
Input Low Voltage, VIL, input clock only
Clock input
VDD/2
(VDD/2)-1
V
Output High Voltage, VOH
IOH=-4mA
VDD-0.4
V
Output High Voltage, VOH
IOH=-25mA
2.4
V
Output Low Voltage, VOL
IOL=25mA
0.4
V
Operating Supply Current, IDD, 5V
No Load
12
mA
Operating Supply Current, IDD, 3.3V
No Load
7
mA
Input Capacitance
S0, S1 pins
7
pF
Actual Mean Frequency versus Target
With exact crystal
25
ppm
AC CHARACTERISTICS (at 5.0V unless otherwise noted)
AC CHARACTERISTICS (at 5.0V unless otherwise noted)
AC CHARACTERISTICS (at 5.0V unless otherwise noted)
Input Clock or Crystal Frequency
14.31818
MHz
Input Crystal Accuracy
50
ppm
Input Clock Duty Cycle
Time above VDD/2
20
80
%
Output Clock Rise Time
0.8 to 2.0V
1.5
ns
Output Clock Fall Time
2.0 to 0.8V
1.5
ns
Output Clock Duty Cycle
Time above VDD/2
40
50
60
%
Absolute Clock Period Jitter
200
ps
One Sigma Clock Period Jitter
70
ps
MK1413
MPEG Audio Clock Synthesizer
MDS 1413 B
4
Revision 091697
Printed 11/15/00
Integrated Circuit Systems, Inc.525
Race StreetSan JoseCA95126(408)295-9800telwww.icst.com
PRELIMINARY INFORMATION
While the information presented herein has been checked for both accuracy and reliability, MicroClock 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 MicroClock. MicroClock reserves the right to change any circuitry or specifications without notice. MicroClock does not
authorize or warrant any MicroClock product for use in life support devices or critical medical instruments.
Package Outline and Package Dimensions
Inches
Inches
Millimeters
Millimeters
Symbol
Min
Max
Min
Max
A
0.055
0.068
1.397
1.7272
b
0.013
0.019
0.330
0.483
D
0.185
0.200
4.699
5.080
E
0.150
0.160
3.810
4.064
H
0.225
0.245
5.715
6.223
e .050 BSC
.050 BSC
1.27 BSC
1.27 BSC
h
0.015
0.381
Q
0.004
0.01
0.102
0.254
8 pin SOIC
Ordering Information
Part/Order Number
Marking
Package
Temperature
MK1413S
MK1413S
8 pin SOIC
0-70C
MK1413STR
MK1413S
Add tape and reel
0-70C
c
A
b
D
E
H
e
h x 45
Q
Pin 1
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