MK2712 ideal generate clocks NTSC/PAL video encoders decoders. Stored

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MK2712 ideal generate clocks NTSC/PAL video encoders decoders. Stored

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MK2712 NTSC/PAL Clock Source
MK2712 ideal generate clocks NTSC/PAL video encoders decoders. Stored device sets popular frequencies NTSC PAL. SOIC, chip save component count, board space, cost over surface mount crystals oscillators, increase reliability eliminating mechanical devices from board. power down turns device, drawing less than 20µA. ICS/MicroClock offers many other clocks computers computer peripherals. Consult when need remove crystals oscillators from your board.
Packaged SOIC Ideal chips such Analog Devices AD722 Brooktree BT819 Input clock frequency 27.0000 Power down turns chip Output enable tri-states output system testing Frequencies within with accurate input clock jitter Output clock frequencies 14.31818MHz, 17.7345MHz, 28.6364MHz, 35.46896MHz 25mA drive capability levels 3.3V supply voltage Advanced, power CMOS process Insensitive input clock duty cycle
Block Diagram
FS0, 27.00 clock input
Clock Synthesis Circuitry Output Buffer NTSC/PALCL
2712
Revision 061401
Integrated Circuit Systems Race Street Jose 95126 (408)295-9800tel www.icst.com
MK2712 NTSC/PAL Clock Source
Assignment
ICLK NPCLK SOIC
Decoding Table
NPCLK (MHz) 14.31818 17.73447 28.63636 35.46894 Error (ppm)
Descriptions
Number Name ICLK NPCLK Type Description Input Clock. Connect 27.0000 clock. Connect +3.3V +5V. Connect ground. NTSC output clock. Selected FS1, tables above. Frequency Select Selects NTSC frequency table above. Output Enable. Tri-states clock output when this input low. Internal pull-up. Power Down. Active low. Clocks stop low. Frequency Select Selects NTSC frequency table above.
Key: Input, output, power supply connection
External Components/Crystal Selection minimum number external components required proper oscillation. Connect 27.000 clock ICLK. decoupling capacitor 0.1µF should connected between pins terminating resistor should used clock output trace longer than inch.
2712
Revision 061401
Integrated Circuit Systems Race Street Jose 95126 (408)295-9800tel www.icst.com
MK2712 NTSC/PAL Clock Source
Electrical Specifications
Parameter Conditions Minimum ABSOLUTE MAXIMUM RATINGS (note Supply Voltage, Referenced Inputs Referenced -0.5 Clock Outputs Referenced -0.5 Ambient Operating Temperature Soldering Temperature seconds Storage temperature CHARACTERISTICS 5.0V unless otherwise noted) Operating Voltage, Input High Voltage, VIH, input clock only ICLK Input Voltage, VIL, input clock only ICLK Input High Voltage, Input Voltage, Output High Voltage, IOH=-4mA VDD-0.4 Output High Voltage, IOH=-25mA Output Voltage, IOL=25mA Operating Supply Current, Load, FS1=1. FS0=1 Power Down Supply Current, IDDPD Load Input Capacitance Actual Mean Frequency versus Target With exact ICLK CHARACTERISTICS 5.0V unless otherwise noted) Input Clock Frequency Input Clock Duty Cycle Time above 2.5V Output Clock Rise Time 2.0V Output Clock Fall Time 0.8V Output Clock Duty Cycle Time above 1.5V Absolute Maximum Clock Period Jitter, Variation from mean Sigma Clock Period Jitter, load Absolute Maximum Clock Period Jitter, VDD=3.3V Sigma Clock Period Jitter, load VDD=3.3V Typical Maximum VDD+.5V VDD+.5V Units
Notes: Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage device. Prolonged exposure levels above operating limits below Absolute Maximums affect device reliability. Typical values 25°C.
2712
Revision 061401
Integrated Circuit Systems Race Street Jose 95126 (408)295-9800tel www.icst.com
MK2712 NTSC/PAL Clock Source
Package Outline Package Dimensions SOIC
Inches 0.055 0.061 0.013 0.019 0.185 0.200 0.150 0.160 0.225 0.245 .050 0.015 0.016 0.035 0.004 0.01 Millimeters 1.397 1.5494 0.330 0.483 4.699 5.080 3.810 4.064 5.715 6.223 1.27 0.381 0.406 0.889 0.102 0.254
Symbol
Ordering Information
Part/Order Number MK2712S MK2712STR Marking MK2712S MK2712S Package SOIC tape reel Temperature 0-70°C 0-70°C
While information presented herein been checked both accuracy reliability, Integrated Circuit Systems, (ICS) assumes responsibility either infringement patents other rights third parties, which would result from use. other circuits, patents, licenses implied. This product intended normal commercial applications. other applications such those requiring extended temperature range, high reliability, other extraordinary environmental requirements recommended without additional processing ICS. reserves right change circuitry specifications without notice. does authorize warrant product life support devices critical medical instruments.
2712
Revision 061401
Integrated Circuit Systems Race Street Jose 95126 (408)295-9800tel www.icst.com

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