PRELIMINARY INFORMATION
MK1413
MPEG Audio Clock Synthesizer
Description
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.
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 5V±10% supply voltage
• Advanced, low power CMOS process
Block Diagram
VDD GND
S1
S0
14.31818 MHz
crystal
or clock
X1
Clock
Buffer/
Crystal
Oscillator
Clock Synthesis
and Control
Circuitry
Output
Buffer
CLK
X2
MDS 1413 B
1
Revision 091697
Printed 11/15/00
Integrated Circuit Systems, Inc.•525 Race Street•San Jose•CA•95126•(408)295-9800tel•www.icst.com
PRELIMINARY INFORMATION
MK1413
MPEG Audio Clock Synthesizer
Pin Assignment
Audio Clock Output Select Table
X1
VDD
GND
NC
1
2
3
4
8
7
6
5
X2
S0
S1
CLK
S1
pin 6
0
0
1
1
S0
pin 7
0
1
0
1
Audio Clock
pin 5
8.192 MHz
11.2896 MHz
12.288 MHz
16.9344 MHz
Accuracy
(ppm)
-2 ppm
-24 ppm
-2 ppm
-24 ppm
8 pin SOIC
Pin Descriptions
Number
1
2
3
4
5
6
7
8
Name
X1
VDD
GND
NC
CLK
S1
S0
X2
Type
I
P
P
-
O
I
I
O
Description
Crystal Connection. Connect to a 14.31818 MHz crystal or clock.
Connect to +3.3V or +5V.
Connect to ground.
No Connect.
Audio Clock Output as per table above.
Frequency Select 1 Input. Determines CLK output as per table above.
Frequency Select 0 Input. Determines CLK output as per table above.
Crystal Connection to a 14.31818 MHz crystal, or leave unconnected for clock input.
Key: I = Input, O = output, P = power supply connection
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
(C L -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 0.1µF should be connected between VDD and GND on pins 2 and 3, and 33Ω
terminating resistor may be used on the clock output if the trace is longer than 1 inch.
MDS 1413 B
2
Revision 091697
Printed 11/15/00
Integrated Circuit Systems, Inc.•525 Race Street•San Jose•CA•95126•(408)295-9800tel•www.icst.com
PRELIMINARY INFORMATION
MK1413
MPEG Audio Clock Synthesizer
Electrical Specifications
Parameter
Supply Voltage, VDD
Inputs
Clock Outputs
Ambient Operating Temperature
Soldering Temperature
Storage temperature
Operating Voltage, VDD
Input High Voltage, VIH, input clock only
Input Low Voltage, VIL, input clock only
Output High Voltage, VOH
Output High Voltage, VOH
Output Low Voltage, VOL
Operating Supply Current, IDD, 5V
Operating Supply Current, IDD, 3.3V
Input Capacitance
Actual Mean Frequency versus Target
Input Clock or Crystal Frequency
Input Crystal Accuracy
Input Clock Duty Cycle
Output Clock Rise Time
Output Clock Fall Time
Output Clock Duty Cycle
Absolute Clock Period Jitter
One Sigma Clock Period Jitter
Conditions
Referenced to GND
Referenced to GND
Referenced to GND
Max of 10 seconds
-65
3
(VDD/2)+1
VDD-0.4
2.4
0.4
12
7
7
25
14.31818
Time above VDD/2
0.8 to 2.0V
2.0 to 0.8V
Time above VDD/2
20
50
80
1.5
1.5
60
Minimum
Typical
Maximum
7
VDD+.5V
VDD+.5V
70
260
150
5.5
VDD/2
VDD/2
(VDD/2)-1
Units
V
V
V
°C
°C
°C
V
V
V
V
V
V
mA
mA
pF
ppm
MHz
ppm
%
ns
ns
%
ps
ps
ABSOLUTE MAXIMUM RATINGS (note 1)
-0.5
-0.5
0
DC CHARACTERISTICS (at 5.0V unless otherwise noted)
Clock input
Clock input
IOH=-4mA
IOH=-25mA
IOL=25mA
No Load
No Load
S0, S1 pins
With exact crystal
AC CHARACTERISTICS (at 5.0V unless otherwise noted)
40
50
200
70
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 25°C.
MDS 1413 B
3
Revision 091697
Printed 11/15/00
Integrated Circuit Systems, Inc.•525 Race Street•San Jose•CA•95126•(408)295-9800tel•www.icst.com
PRELIMINARY INFORMATION
MK1413
MPEG Audio Clock Synthesizer
Package Outline and Package Dimensions
8 pin SOIC
Symbol
A
b
D
E
H
e
h
Q
Inches
Min
Max
0.055 0.068
0.013 0.019
0.185 0.200
0.150 0.160
0.225 0.245
.050 BSC
0.015
0.004
0.01
Millimeters
Min
Max
1.397 1.7272
0.330
0.483
4.699
5.080
3.810
4.064
5.715
6.223
1.27 BSC
0.381
0.102
0.254
E
Pin 1
H
D
Q
e
b
c
h x 45°
A
Ordering Information
Part/Order Number
MK1413S
MK1413STR
Marking
MK1413S
MK1413S
Package
8 pin SOIC
Add tape and reel
Temperature
0-70°C
0-70°C
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.
MDS 1413 B
4
Revision 091697
Printed 11/15/00
Integrated Circuit Systems, Inc.•525 Race Street•San Jose•CA•95126•(408)295-9800tel•www.icst.com
Embedded System
京公网安备 11010802033920号
EEWORLD
