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| 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 5V10% 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 0.1F 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. 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 25C. 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 0-70C 0-70C 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 |
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