IDT5V50009DCG8
IDT5V50009DCG8 Datasheet
IDT5V50009
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IDT5V50009DCG8 |
IDT5V50009DCG8 (pdf) |
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IDT5V50009DCG |
IDT5V50009DCG |
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| SPREAD SPECTRUM CLOCK GENERATOR DATASHEET IDT5V50009 The IDT5V50009 generates a low EMI output clock and a reference clock from a clock or crystal input. The part is designed to lower EMI through the application of spreading a clock. Using IDT’s proprietary mix of analog and digital Phase-Locked Loop PLL technology, the device spreads the frequency spectrum of the output, reducing the frequency amplitude peaks by several dB depending on spread range. The IDT5V50009 offers a range of down spread from a high speed clock or crystal input. The IDT5V50009 generates one modulated SSCLK and unmodulated REFCLK clock. The modulated clock is controlled by the select pin, and the unmodulated clock has the same frequency as the input clock or crystal. • Packaged in 8-pin SOIC • Available in Pb lead free package • Input frequency range 20- 40 MHz • Provides modulated and unmodulated clocks • Accepts a clock or crystal input • Provides down spread modulation • Provides power down function • Reduce electromagnetic interference EMI by 8-16 db • Operating voltage of V • Advanced, low-power CMOS process Block Diagram PD S0 X1/CLK X2 External caps required for with crystal for accurate tuning of the clock Clock Buffer/ Crystal Ocsillator PLL Clock Synthesis and Spread Spectrum Circuitry REFCLK SSCLK IDT SPREAD SPECTRUM CLOCK GENERATOR IDT5V50009 SPREAD SPECTRUM CLOCK GENERATOR Pin Assignment X1/ICLK 1 GND 2 S0 3 SSCLK 4 8 X2 7 VDD 6 PD 5 REFCLK 8 pin 150mil SOIC SSCG Spread Percentage Select Table Spread Spread Direction Percentage % Down Down 0 = connect to GND 1 = connect directly to VDD * Default has internal pull up resistor to VDD Pin Descriptions Pin Number Pin Type Name Pin Description X1/ICLK Input Connect to a 20 to 40 MHz crystal or clock. GND Power Connect to ground. Input Select spread percentage per table above. Weak Internal pull-up. SSCLK Output Spread spectrum clock output per table above. Weak Internal Pull down 5 REFCLK Output CMOS level clock output matches the nominal frequency of the input crystal or clock. Weak Internal Pull down Ordering Information Part / Order Number 5V50009DCG 5V50009DCG8 Marking See page 6 Shipping Packaging Tubes Tape and Reel Package 8-pin SOIC 8-pin SOIC Temperature 0 to +70° C 0 to +70° C Parts that are ordered with a “G” after the two-letter package code are the Pb-Free configuration and are RoHS compliant. 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 SPREAD SPECTRUM CLOCK GENERATOR IDT5V50009 SPREAD SPECTRUM CLOCK GENERATOR SSCG 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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