MK2716
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MK2716S (pdf) |
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MK2716STR |
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HDTV CLOCK SYNTHESIZER DATASHEET MK2716 The MK2716 is a low-cost, low jitter, high-performance PLL clock synthesizer designed to produce the MHz and MHz clocks necessary for HDTV systems. Using IDT’s patented analog Phase-Locked Loop PLL techniques, the device accepts a 27 MHz crystal or clock input. The zero ppm synthesis error exactly locks the display to the digital stream. IDT manufactures the largest variety multimedia clock synthesizers for all applications. Consult IDT to eliminate crystals and oscillators from your board. For applications that require lower jitter, such as SDI and pixel clocks, use the ICS664. • Packaged in 8-pin SOIC • Available in Pb lead free package • Input frequency of 27 MHz • Zero ppm synthesis error in output clock • V or 5 V ±10% operating supply • Ideal for HDTV applications and oscillator manufacturers • 25 mA output drive capability at TTL levels • Advanced, low power, sub-micron CMOS process • Operating voltage of V or 5 V NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 Block Diagram 27 MHz crystal or clock input X2 Clock Buffer Clock Synthesis and Control Circuitry 2 GND CLK MHz or MHz IDT HDTV CLOCK SYNTHESIZER MK2716 MK2716 HDTV CLOCK SYNTHESIZER Pin Assignment ICLK/X1 1 VDD 2 GND 3 CLK 4 8 X2 7 27M 6 SEL 5 GND CLOCK SYNTHESIZER FREQUENCY SELECT TABLE CLK MHz Pin Descriptions Number Name ICLK/X1 Pin Type XI Power Output Power Input Output Pin Description Crystal connection. Connect to a 27 MHz fundamental crystal or clock. Connect to V or +5 V. Connect to ground. MHZ or MHz clock output see table above . Connect to ground. Select pin determines value of CLK per table above. 27 MHz buffered clock or crystal oscillator output. Crystal connection. Connect to a 27 MHz crystal, or leave unconnected for clock input. External Components Decoupling Capacitor As with any high performance mixed-signal IC, the MK2716 must be isolated from system power supply noise to perform optimally. A decoupling capacitor of 0.01µF must be connected between VDD and GND on pins 2 and It must be connected close to the MK2716 to minimize lead inductance. Pin 5 can be connected to pin No external power supply filtering is required for the MK2716. Series Termination Resistor A terminating resistor can be used next to the clock outputs for trace lengths over one inch. Crystal Load Capacitors The total on-chip capacitance is approximately 18 pF. A parallel resonant, fundamental mode, AT cut 27 MHz crystal should be used. The device crystal connections should include pads for small capacitors from X1 to ground and from X2 to ground. These capacitors are used to adjust the stray capacitance of the board to match the nominally required crystal load capacitance. Because load capacitance can only be increased in this trimming process, it is important to keep stray capacitance to a minimum by using very short PCB traces and no vias between the crystal and device. Crystal capacitors, if needed, must be connected from each of the pins X1 and X2 to ground. Ordering Information A1 -C- SEATING PLANE h x 45 Part / Order Number MK2716S* MK2716STR* MK2716SLF MK2716SLFTR Marking MK2716S MK2716SL Shipping Packaging Tubes Tape and Reel Tubes Tape and Reel Package 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC Temperature 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C *NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology IDT 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 IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments. IDT HDTV CLOCK SYNTHESIZER MK2716 MK2716 HDTV CLOCK SYNTHESIZER CLOCK SYNTHESIZER Innovate with IDT and accelerate your future networks. Contact: For Sales 800-345-7015 408-284-8200 Fax 408-284-2775 For Tech Support Corporate Headquarters Integrated Device Technology, Inc. 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA |
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