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83918 Datasheet(PDF) 1 Page - Integrated Device Technology |
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83918 Datasheet(HTML) 1 Page - Integrated Device Technology |
1 / 19 page ![]() 1 ©2016 Integrated Device Technology, Inc Revision B March 17, 2016 General Description The 83918 is a low skew, 1:18 Crystal-to- LVCMOS/LVTTL Fanout Buffer. The 83918 has selectable LVCMOS/LVTTL clock or crystal inputs. The low impedance LVCMOS/LVTTL outputs are designed to drive 50 series or parallel terminated transmission lines. The 83918 is characterized at full 3.3V, full 2.5V and mixed 3.3V/2.5V, 3.3V/1.8V, and 2.5V/1.8V output operating supply modes. Guaranteed output and part-to-part skew characteristics make the 83918 ideal for those clock distribution applications demanding well defined performance and repeatability. Features • Eighteen LVCMOS/LVTTL output • Selectable crystal oscillator interface or LVCMOS_CLK • Maximum output frequency: 200MHz • Crystal input frequency range: 10MHz to 40MHz • RMS phase jitter using a 25MHz crystal (1kHz – 1MHz): 0.449ps (typical) @ 3.3V/3.3V • Output skew: 75ps (maximum) @ 3.3V/3.3V • Operating supply modes: Core/Output 3.3V/3.3V 3.3V/2.5V 3.3V/1.8V 2.5V/2.5V 2.5V/1.8V • -40°C to 85°C ambient operating temperature • Available in lead-free (RoHS 6) package OSC 0 1 18 Q0:Q17 Pulldown Pulldown CLK_SEL LVCMOS_CLK XTAL_IN XTAL_OUT 32 31 30 29 28 27 26 25 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 Q6 Q7 Q8 VDDO Q9 Q10 Q11 GND GND GND LVCMOS_CLK CLK_SEL XTAL_IN XTAL_OUT VDD VDDO Pin Assignment 83918 32 Lead LQFP 7mm x 7mm x 1.4mm package body Y Package Top View Block Diagram 83918 Data Sheet Low Skew, 1:18 Crystal-to-LVCMOS/LVTTL Fanout Buffer |
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