ICS83904-02 Datasheet | Integrated Circuit Systems

PRELIMINARY Integrated Circuit Systems, Inc. LOW SKEW, 1-TO-4 CRYSTAL-TO-LVCMOS/LVTTL FANOUT BUFFER Features - Four LVCMOS/LVTTL outputs, 19Ω 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) @ VDD = VDDO = 3.3V - RMS phase noise at 25MHz: Offset Noise Power 100Hz .............. -118.4 d Bc/Hz 1k Hz .............. -141.5 d Bc/Hz 10k Hz .............. -157.2 d Bc/Hz 100k Hz .............. -157.2 d Bc/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 performance 1-to-4 Crystal Oscillator/Crystal-to Hi Per Clock S™ LVCMOS Fanout Buffer and a member of the Hi Per Clock S™ 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. BLOCK DIAGRAM OE CLK_SEL0 Pullup Pulldown CLK_SEL1 Pulldown PIN ASSIGNMENT 0 0 Q0 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 XTAL_IN0 XTAL_OUT0 XTAL_IN1...