DS1081L Maxim Integrated Products, DS1081L Datasheet
DS1081L
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DS1081L Summary of contents
Page 1
... EMI in high clock-frequency-based, digital electronic equipment. Using an integrated phase-locked loop (PLL), the DS1081L accepts an input clock signal in the range of 20MHz to 134MHz and delivers a spread-spectrum mod- ulated output clock signal. The PLL modulates, or dithers, the output clock about the center input frequency at a pin-selectable magnitude and dither rate, allowing direct EMI control and optimization ...
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Spread-Spectrum Clock Modulator for LCD Panels ABSOLUTE MAXIMUM RATINGS Voltage Range on V Relative to GND .............-0.5V to +3.63V CC Voltage Range on Any Lead Relative to GND ................-0. 0.5V), not to exceed +3.63V ...
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Spread-Spectrum (T = +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. SUPPLY VOLTAGE 14 12 CLKIN = 134MHz 10 CLKIN = 66MHz 8 CLKIN = 20MHz 3.0 3.1 3.2 3.3 3.4 3.5 SUPPLY ...
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... Float 8 Supply Voltage V CC Detailed Description The DS1081L modulates an input clock to generate a center-dithered spread-spectrum output. A 20MHz to 134MHz clock is applied to the CLKIN pin. An internal PLL dithers the output clock about its center frequency at a user-selectable magnitude. Spread-Spectrum Dither Magnitude The DS1081L can generate dither magnitudes up to ± ...
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... OR 2. CLKIN RANGE (MHz 134 Figure 1. DS1081L Spread-Spectrum Frequency Modulation f = 20MHz TO IN 134MHz NOTE: IN THE ABOVE CONFIGURATION WITH SMSEL1, SMSEL2, AND SSEN CONNECTED TO GND AS WELL AS CRSEL CONNECTED TO V SPREAD-SPECTRUM MAGNITUDE OF ±2.0%, AND ALLOWS A CLKIN BETWEEN 20MHz and 38MHz. ...