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83905AKLFT Datasheet(PDF) 1 Page - Integrated Device Technology |
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83905AKLFT Datasheet(HTML) 1 Page - Integrated Device Technology |
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1 / 21 page  1 ©2016 Integrated Device Technology, Inc. Revision D September 27, 2016 General Description The 83905 is a low skew, 1-to-6 LVCMOS / LVTTL Fanout Buffer. The low impedance LVCMOS/LVTTL outputs are designed to drive 50 series or parallel terminated transmission lines. The effective fanout can be increased from 6 to 12 by utilizing the ability of the outputs to drive two series terminated lines. The 83905 is characterized at full 3.3V, 2.5V, and 1.8V, mixed 3.3V/2.5V, 3.3V/1.8V and 2.5V/1.8V output operating supply mode. Guaranteed output and part-to-part skew characteristics along with the 1.8V output capabilities makes the 83905 ideal for high performance, single ended applications that also require a limited output voltage. Pin Assignments Features • Six LVCMOS / LVTTL outputs • Outputs able to drive 12 series terminated lines • Crystal Oscillator Interface • Crystal input frequency range: 10MHz to 40MHz • Output skew: 80ps (maximum) • RMS phase jitter @ 25MHz, (100Hz – 1MHz): 0.26ps (typical), VDD = VDDO = 2.5V Offset Noise Power 100Hz.................-129.7 dBc/Hz 1kHz ...................-144.4 dBc/Hz 10kHz .................-147.3 dBc/Hz 100kHz ...............-157.3 dBc/Hz • 5V tolerant enable inputs • Synchronous output enables • Operating power supply modes: Full 3.3V, 2.5V, 1.8V Mixed 3.3V core/2.5V output operating supply Mixed 3.3V core/1.8V output operating supply Mixed 2.5V core/1.8V output operating supply • 0°C to 70°C ambient operating temperature • Lead-free (RoHS 6) packaging Block Diagram 6 7 8 9 10 19 20 18 17 16 1 2 3 4 5 13 14 15 12 11 GND VDDO GND BCLK0 BCLK1 BCLK4 BCLK5 VDDO GND GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 XTAL_IN ENABLE1 BCLK5 VDDO BCLK4 GND BCLK3 VDD BCLK2 GND BCLK1 VDDO BCLK0 GND ENABLE2 XTAL_OUT 83905 16-Lead SOIC, 150 Mil 3.9mm x 9.9mm x 1.38mm package body M Package Top View 16-Lead TSSOP 4.4mm x 5.0mm x 0.925mm package body G Package Top View 83905 20-Lead VFQFN 4mm x 4mm x 0.925mm package body K Package Top View SYNCHRONIZE SYNCHRONIZE BCLK0 BCLK1 BCLK2 BCLK3 BCLK4 BCLK5 XTAL_IN XTAL_OUT ENABLE 1 ENABLE 2 83905 Datasheet Low Skew, 1:6 Crystal-to-LVCMOS/ LVTTL Fanout Buffer |
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