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83904A02 Datasheet(PDF) 1 Page - Integrated Circuit Systems |
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83904A02 Datasheet(HTML) 1 Page - Integrated Circuit Systems |
1 / 15 page Integrated Circuit Systems, Inc. 83904AG-02 www.icst.com/products/hiperclocks.html REV. A JULY 8, 2005 1 ICS83904-02 LOW SKEW, 1-TO-4 CRYSTAL-TO-LVCMOS/LVTTL FANOUT BUFFER PRELIMINARY FEATURES • Four LVCMOS/LVTTL outputs, 19 Ω typical output impedance • Two Crystal oscillator input pairs One LVCMOS/LVTTL clock input • Crystal input frequencry range: 10MHz - 40MHz • Output frequency: 200MHz (typical) • Output Skew: TBD • Part to Part Skew: TBD • RMS phase jitter @ 25MHz output, using a 25MHz crystal (100Hz - 1MHz): 0.16ps (typical) @ V DD = VDDO = 3.3V • RMS phase noise at 25MHz: Offset Noise Power 100Hz .............. -118.4 dBc/Hz 1kHz .............. -141.5 dBc/Hz 10kHz .............. -157.2 dBc/Hz 100kHz .............. -157.2 dBc/Hz • Supply Voltage Modes: (Core/Output) 3.3V/3.3V 3.3V/2.5V 3.3V/1.8V 2.5V/2.5V 2.5V/1.8V • 0°C to 70°C ambient operating temperature • Industrial temperature available upon request GENERAL DESCRIPTION The ICS83904-02 is a low skew, high perfor- mance 1-to-4 Crystal Oscillator/Crystal-to- LVCMOS Fanout Buffer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The ICS83904-02 has selectable single ended clock or two crystal-oscillator inputs. There is an output enable to disable the outputs by placing them into a high-impedance state. Guaranteed output and part-to-part skew characteristics make the ICS83904-02 ideal for those applications demanding well defined performance and repeatability. HiPerClockS™ ICS BLOCK DIAGRAM OE CLK_SEL0 CLK_SEL1 CLK Q0 Q3 OSC OSC 0 0 0 1 1 0 1 1 Pullup ICS83904-02 16-LeadTSSOP 4.4mm x 5.0mm x 0.92mm package body G Package Top View Pulldown Pulldown XTAL_IN0 XTAL_OUT0 XTAL_IN1 XTAL_OUT1 Pulldown 4 LVCMOS Outputs CLK_SEL0 XTAL_OUT0 XTAL_IN0 VDD XTAL_IN1 XTAL_OUT1 CLK_SEL1 CLK 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VDDO Q0 Q1 GND Q2 Q3 VDDO OE The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice. PIN ASSIGNMENT |
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