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8P34S2108NLGI Datasheet(PDF) 1 Page - Integrated Device Technology |
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8P34S2108NLGI Datasheet(HTML) 1 Page - Integrated Device Technology |
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1 / 20 page  1 ©2016 Integrated Device Technology, Inc. October 20, 2016 Description The 8P34S2108 is a high-performance, low-power, differential dual 1:8 LVDS output 1.8V fanout buffer. The device is designed for the fanout of high-frequency, very low additive phase-noise clock and data signals. Two independent buffer channels are available, each channel has two low skew outputs. High isolation between channels minimizes noise coupling. AC characteristics such as propagation delay are matched between channels. Guaranteed output-to-output and part-to-part skew characteristics make the 8P34S2108 ideal for those clock distribution applications demanding well-defined performance and repeatability. The device is characterized to operate from a 1.8V power supply. The integrated bias voltage references enable easy interfacing AC-coupled signals to the device inputs. Block Diagram Features ▪ Dual 1:8 low skew, low additive jitter LVDS fanout buffers ▪ Matched AC characteristics across both channels ▪ High isolation between channels ▪ Low power consumption ▪ Both differential CLKA, nCLKA and CLKB, nCLKB inputs accept LVDS, LVPECL and single-ended LVCMOS levels ▪ Maximum input clock frequency: 2GHz ▪ Output amplitudes: 350mV, 500mV (selectable) ▪ Output bank skew: 10ps typical ▪ Output skew: 20ps typical ▪ Low additive phase jitter, RMS: 45fs typical (fREF = 156.25MHz, 12kHz - 20MHz) ▪ Full 1.8V supply voltage mode ▪ Device current consumption (IDD): 280mA typical ▪ Lead-free (RoHS 6), 48-lead VFQFN packaging ▪ -40°C to 85°C ambient operating temperature ▪ Supports case temperature up to 105°C 8P34S2108 transistor count: 1113 CLKA nCLKA VREFA SELAA Voltage Reference A QA0 nQA0 QA1 nQA1 QA2 nQA2 QA3 nQA3 QA4 nQA4 QA5 nQA5 QA6 nQA6 QA7 nQA7 51k 51k 51k CLKB nCLKB VREFB SELAB Voltage Reference B 51k 51k 51k QB0 nQB0 QB1 nQB1 QB2 nQB2 QB3 nQB3 QB4 nQB4 QB5 nQB5 QB6 nQB6 QB7 nQB7 51k 51k VDDB VDDA VDDA VDDB 8P34S2108 Datasheet Dual 1:8 LVDS Output 1.8V Fanout Buffer |
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