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ICS83905AM Datasheet(PDF) 1 Page - Integrated Device Technology |
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ICS83905AM Datasheet(HTML) 1 Page - Integrated Device Technology |
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1 / 19 page  LOW SKEW, 1:6 CRYSTAL-TO- LVCMOS/LVTTL FANOUT BUFFER ICS83905 IDT™ / ICS™ LVCMOS/LVTTL FANOUT BUFFER 1 ICS83905AM REV. B JULY 9, 2007 GENERAL DESCRIPTION The ICS83905 is a low skew, 1-to-6 LVCMOS / LVTTL Fanout Buffer and a member of the HiPerClockS™ family of High Performance Clock Solutions from IDT. The low impedance LVCMOS/LVTTL outputs are de- signed to drive 50 Ω 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 ICS83905 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 char- acteristics along with the 1.8V output capabilities makes the ICS83905 ideal for high performance, single ended applica- tions that also require a limited output voltage. 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) (V DD = VDDO = 2.5V) Phase noise: 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 and 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 • Available in both standard (RoHS 5) and lead-free (RoHS 6) packages HiPerClockS™ ICS XTAL_OUT ENABLE 2 GND BCLK0 VDDo BCLK1 GND BCLK2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 XTAL_IN ENABLE 1 BCLK5 VDDO BCLK4 GND BCLK3 VDD ICS83905 16-Lead SOIC 3.9mm x 9.9mm x 1.38mm body package M Pacakge Top View 16-Lead TSSOP 4.4mm x 5.0mm x 0.92mm body package G Pacakge Top View 20 19 18 17 16 6 7 8 9 10 1 2 3 4 5 15 14 13 12 11 BCLK5 VDDO BCLK4 GND GND GND GND BCLK0 VDDO BCLK1 ICS83905 20-Lead VFQFN 4mm x 4mm x 0.9mm body package K Package Top View PIN ASSIGNMENTS BLOCK DIAGRAM SYNCHRONIZE SYNCHRONIZE BCLK0 BCLK1 BCLK2 BCLK3 BCLK4 BCLK5 ENABLE 1 ENABLE 2 XTAL_IN XTAL_OUT |
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