MK1631-01S [IDT]
Video Clock Generator, 40.5MHz, PDSO16, 0.150 INCH, SOIC-16;
| 型号： | MK1631-01S |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Video Clock Generator, 40.5MHz, PDSO16, 0.150 INCH, SOIC-16 时钟 光电二极管 外围集成电路 晶体 |
| 文件： | 总4页 (文件大小：42K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MK1631
ICRO CLOC K VCD with NTSC/PAL Clock Source
Description
Features
The MK1631 provides clocks for video CD
systems. It is designed to work with many popular
MPEG 1 decoder solutions and microcontrollers.
The chip uses MicroClock’s proprietary analog
Phase-Locked Loop technology, and generates all
of the outputs from a 16.9344MHz input crystal.
This chip eliminates multiple crystals and
oscillators in video CD systems, saving component
cost, component count, board stuffing cost, and
increasing reliability by removing mechanical
quartz devices from the system.
• Packaged in 16 pin narrow (150 mil) SOIC
• Compatible with many popular MPEG I decoders
• Highly accurate frequency generation within 1 ppm
• Generates NTSC/PAL subcarrier frequencies, and
4X and 8X of those frequencies
• Selectable processor/microcontroller frequencies
• Fixed clock of 27MHz
MicroClock can customize this device for any
different frequencies for a small NRE.
• All clocks are frequency-locked to each other
• 4.5V to 5.5V operation
Block Diagram
VDD
GND
2
2
Output
Buffer
Processor Clock A
Processor Clock B
2
PS1,0
C2S
Output
Buffer
Clock Synthesis
and Control
Circuitry
Output
Buffer
Clock 2
Output
Buffer
Clock 2 ÷ 2
Clock 2 ÷ 8
Output
Buffer
16.9344 MHz
clock or
X1
crystal
Output
Buffer
Clock
Buffer/
Crystal
27 MHz
Output
Buffer
Oscillator
16.9344 MHz
X2
MDS1631B
1
Revision 12047
Printed 12/4/97
MicroClock Division of ICS•1271 Parkmoor Ave.•San Jose•CA•95126•(408)295-9800tel•(408)295-9818fax
MK1631
ICRO CLOC K VCD with NTSC/PAL Clock Source
Pin Assignment
Processor Clock Decoding Table (MHz)
Processor Clock
1
2
3
PS1
X2
16
15
14
PS0
PS1 PS0 PCLKA
PCLKB
PCLKA
16.9M
VDD
C2S
0
0
1
1
0
1
0
1
32
20
16
10
X1/ICLK
VDD
33.8688
40.5
16.9344
4
4
5
6
13
12
GND
Clock 2 MK1631-01
27M
11
10
9
GND
C2S
0
CLK2
CLK2/2
CLK2/8
3.57954
4.43362
28.63636
35.46895
7
8
14.31818
17.73447
CLK2
PCLKB
CLK2/8
1
CLK2/2
All Clock frequencies are in MHz.
16 pin (150 mil) SOIC
Pin Descriptions
Number
Name
PS1
Type Description
1
2
I
Processor Clock Select 1. Determines PCLK outputs per table above.
X2
O
I
Crystal connection. Leave unconnected for clock input, or connect to 16.9344 MHz crystal.
Crystal connection. Connect to 16.9344 MHz crystal, or clock input
Connect to +5V.
3
X1/ICLK
VDD
4
P
P
O
O
O
O
O
P
I
5
GND
27M
Connect to ground.
6
27.00 MHz clock output.
7
CLK2
CLK2/2
CLK2/8
PCLKB
GND
C2S
Clock 2 for NTSC/PAL encoders. Determined by C2S per table above.
Clock 2 output divided by 2. Determined by C2S per table above.
Clock 2 output divided by 8 for subcarrier frequencies. Determined by C2S per table above.
Processor Clock outputs. Determined by PS0, PS1 per table above.
Connect to ground.
8
9
10
11
12
13
14
15
16
Clock 2 Select. Determines CLK2 output per table above.
Connect to +5V.
VDD
P
O
O
I
16.9M
PCLKA
PS0
16.9344 MHz buffered crystal oscillator output.
Processor Clock outputs. Determined by PS0, PS1 per table above.
Processor Clock Select 0. Determines PCLK outputs per table above.
Type: I = Input, O = output, P = power supply connection
MDS1631B
2
Revision 12047
Printed 12/4/97
MicroClock Division of ICS•1271 Parkmoor Ave.•San Jose•CA•95126•(408)295-9800tel•(408)295-9818fax
MK1631
ICRO CLOC K VCD with NTSC/PAL Clock Source
External Components/Crystal Selection
The MK1631 requires a minimum number of external components for proper operation. For a crystal input,
a parallel resonant 16.9344 MHz, 16pF load, crystal is recommended. The frequency tolerance of the
crystal should be 50ppm or better. For a clock input, connect to X1 and leave X2 unconnected. Decoupling
capacitors of 0.1µF must be connected between VDD and GND pins (pins 4 and 5, 13 and 11) very close
to the chip, and 33Wterminating resistors should be used on clock outputs with traces longer than 1 inch.
Electrical Specifications
Parameter
Conditions
Minimum
Typical
Maximum
Units
ABSOLUTE MAXIMUM RATINGS (Note 1)
Supply Voltage, VDD
Referenced to GND
7
VDD+0.5
70
V
V
Inputs and Clock Outputs
Ambient Operating Temperature
Soldering Temperature
-0.5
0
°C
°C
°C
Max of 10 seconds
250
Storage Temperature
-65
150
DC CHARACTERISTICS
Operating Voltage, VDD
Input High Voltage, VIH
Input Low Voltage, VIL
Output High Voltage
4.5
2
5.5
0.8
V
V
V
IOH=-4mA
VDD-0.4
2.4
V
Output High Voltage
IOH=-25mA
IOL=25mA
V
Output Low Voltage
0.4
V
Operating Supply Current, IDD
Short Circuit Current
No Load, VDD=5.0V
Each output
TBD
±100
15
7
mA
mA
pF
pF
ppm
ppm
%
Input Capacitance, X1 and X2 pins
Input Capacitance
Actual mean frequency error versus target, note 2 13.5, 27, and 40.5MHz
Actual mean frequency error versus target, note 2 NTSC/PAL clocks
1
1
1
1
Controller clocks
Actual mean frequency error versus target
0.02
AC CHARACTERISTICS
Input Frequency
16.9344
MH z
ns
Output Clock Rise Time
Output Clock Fall Time
Output Clock Duty Cycle, High Time
0.8 to 2.0V
2.0 to 0.8V
At VDD/2
1.5
1.5
55
ns
45
40
49 to 51
250
%
Output Clock Duty Cycle, High Time, 35.5MHz At VDD/2
Absolute Clock Period Jitter
60
%
ps
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. Provided the crystal is properly tuned, or an accurate 16.9344 MHz input clock is used.
MDS1631B
3
Revision 12047
Printed 12/4/97
MicroClock Division of ICS•1271 Parkmoor Ave.•San Jose•CA•95126•(408)295-9800tel•(408)295-9818fax
MK1631
ICRO CLOC K VCD with NTSC/PAL Clock Source
Package Outline and Package Dimensions
16 pin SOIC narrow
Inches
Millimeters
Min Max
Symbol Min
Max
A
b
0.055 0.070 1.397
0.013 0.019 0.330
0.007 0.010 0.190
1.778
0.483
0.254
E
H
c
D
E
H
e
0.385 0.400 9.779 10.160
0.150 0.160 3.810
0.225 0.245 5.715
4.064
6.223
.050 BSC
0.016
0.01
1.27 BSC
h
0.406
0.254
h x 45°
Q
0.004
0.102
D
A
c
Q
b
e
Ordering Information
Part/Order Number
Marking
Package
Temperature
MK1631-01S
MK1631-01S
MK1631-01S
16 pin narrow SOIC
Add Tape & Reel
0-70°C
0-70°C
MK1631-01STR
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.
CHANGE HISTORY
Version Date first published
2/07/96
Comments
Original
A
MDS1631B
4
Revision 12047
Printed 12/4/97
MicroClock Division of ICS•1271 Parkmoor Ave.•San Jose•CA•95126•(408)295-9800tel•(408)295-9818fax
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