DatasheetsPDF.com

ASM3P2811A

ON Semiconductor
Part Number ASM3P2811A
Manufacturer ON Semiconductor
Description Low Power EMI Reduction IC
Published Feb 6, 2016
Detailed Description ASM3P2811A/B, ASM3P2812A/B, ASM3P2814A/B Low Power EMI Reduction IC Description The ASM3P28XX devices are versatile sp...
Datasheet PDF File ASM3P2811A PDF File

ASM3P2811A
ASM3P2811A

Overview
ASM3P2811A/B, ASM3P2812A/B, ASM3P2814A/B Low Power EMI Reduction IC Description The ASM3P28XX devices are versatile spread spectrum frequency modulators designed specifically for a wide range of input clock frequencies from 10 MHz to 40 MHz.
Refer to Input/Output Frequency Range Selection Table.
The ASM3P28XX can generate an EMI reduced clock from crystal, ceramic resonator, or system clock.
The ASM3P28XX−A and the ASM3P28XX−B offer various combinations of spread options and percentage deviations.
Refer to Frequency Deviation and Spread Selection Table.
These combinations include Down and Center Spread, and percentage deviation range from ±0.
625% to −3.
5%.
The ASM3P28XX reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals.
The ASM3P28XX allows significant system cost savings by reducing the number of circuit board layers, ferrite beads, shielding, and other passive components that are traditionally required to pass EMI regulations.
The ASM3P28XX modulates the output of a single PLL in order to “spread” the bandwidth of a synthesized clock, and more importantly, decreases the peak amplitudes of its harmonics.
This results in significantly lower system EMI compared to the typical narrow band signal produced by oscillators and most frequency generators.
Lowering EMI by increasing a signal’s bandwidth is called ‘spread spectrum clock generation.
’ The ASM3P28XX uses the most efficient and optimized modulation profile approved by the FCC and is implemented in a proprietary all−digital method.
http://onsemi.
com SOIC−8 S SUFFIX CASE 751BD TSSOP−8 T SUFFIX CASE 948AL PIN CONFIGURATION 1 XIN / CLKIN XOUT VSS VDD D_C FRS SRS ModOUT (Top View) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 7 of this data sheet.
Applications The ASM3P28XX is targeted towards EMI management for memory and LVDS interfaces i...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)