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SL16020DCT Datasheet(PDF) 1 Page - Silicon Laboratories |
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SL16020DCT Datasheet(HTML) 1 Page - Silicon Laboratories |
1 / 10 page Rev 2.2, August 1, 2010 Page 1 of 10 400 West Cesar Chavez, Austin, TX 78701 1+(512) 416-8500 1+(512) 416-9669 www.silabs.com SL16020DC Key Features • Low power dissipation - 14.5mA-typ CL=15pF - 20.0mA-max CL=15pF • 3.3V +/-10% power supply range • 27.000MHz crystal or clock input • 27.000MHz REFCLK • 100MHz SSCLK with SSEL0/1 spread options • Low CCJ Jitter • Low LT Jitter • Internal Voltage Regulators • 45% to 55% Output Duty Cycle • On-chip Crystal Oscillator • -10 to +85 Temperature Range • 10-pin 3x3x0.75 mm TDFN package Application • Video Cards • NB and DT PCs • HDTV and DVD-R/W • Routers, Switches and Servers • Data Communications • Embeded Digital Applications Description The SL16020DC is a low power dissipation spread spectrum clock generator using SLI proprietary low jitter PLL. The SL16020DC provides two output clocks. REFCLK (Pin-9) which is a buffered output of the 27.000MHz input crystal and SSCLK (Pin-5) which is synthesized as 100.000MHz nominal by an internal PLL using the 27.00MHz external input crystal or clock. In addition, SSEL0 (Pin-7) and SSEL1 (Pin-3) spread percent selection control inputs enable users to select from 0.0% (no spread) to –1.5% down spread at 100.000MHz SSCLK output to reduce and optimize system EMI levels. The SL16020DC operates in an extended temperature range of -10 to +85°C. Contact SLI for other programmable frequencies, Spread Spectrum Clock (SSC) options, as well as 2.5V+/-10 and 1.8V+/-5% power supply options. Benefits • EMI Reduction • Improved Jitter • Low Power Dissipation • Eleminates external Xtals or XOs Block Diagram 1 Low Jitter PLL With Modulation Control 5 Input Decoder 4 6 10 7 3 300K SSCLK 100.000MHz With Spread Options XIN/CLKIN XOUT VDD1 VSS1 SSEL0 SSEL1 9 REFCLK 27.000MHz 8 2 VSS2 VDD2 Figure 1. Block Diagram Low Jitter and Power Clock Generator with SSCG |
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