ICS8402I Datasheet | Integrated Circuit Systems

Integrated Circuit Systems, Inc. 350MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER Features - (2) LVCMOS/LVTTL outputs - Selectable crystal oscillator interface or LVCMOS/LVTTL TEST_CLK - Output frequency range: 15.625MHz - 350MHz - Crystal input frequency range: 12MHz to 40MHz - VCO range: 250MHz to 700MHz - Parallel or serial interface for programming counter and output dividers - RMS period jitter: 30ps (maximum) - Cycle-to-cycle jitter: 100ps (maximum) - Full 3.3V or mixed 3.3V core/2.5V output supply voltage - -40°C to 85°C ambient operating temperature - Lead-Free fully Ro HS pliant GENERAL DESCRIPTION The ICS8402I is a general purpose, Crystal-to LVCMOS/LVTTL High Frequency Synthesizer and Hi Per Clock S™ a member of the Hi Per Clock S ™ family of High Performance Clock Solutions from ICS. The ICS8402I has a selectable TEST_CLK or crystal inputs. The VCO operates at a frequency range of 250MHz to 700MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and output frequency can be programmed using the .. serial or parallel interfaces to the configuration logic. The low phase noise characteristics of the ICS8402I make it an ideal clock source for Gigabit Ethernet and SONET applications. BLOCK DIAGRAM OE0 OE1 VCO_SEL PIN ASSIGNMENT VCO_SEL n P_LOAD XTAL_IN M4 32 31 30 29 28 27 26 25 XTAL_SEL TEST_CLK XTAL_IN OSC XTAL_OUT 1 0 M3 M2 M1 M0 M5 M6 M7 M8 N0 N1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...