ICS22002I-01

www.DataSheet4U.com PRELIMINARY FEMTOCLOCKS™ CRYSTAL-TOLVHSTL FREQUENCY SYNTHESIZER ICS8422002I-01 Features Two LVHSTL outputs (VOHmax = 1.2V) Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input Supports the following output frequencies: 156.25MHz, 125MHz, 62.5MHz VCO range: 560MHz - 680MHz RMS phase jitter @ 156.25MHz, using a 25MHz crystal (1.875MHz - 20MHz): 0.44ps (typical) Power supply modes: Core/Output 3.3V/1.8V 2.5V/1.8V -40°C to 85°C ambient operating temperature Available in both standard (RoHS 5) and lead-free (RoHS 6) packages General Description The ICS8422002I-01 is a 2 output LVHSTL Synthesizer optimized to generate Ethernet HiPerClockS™ reference clock frequencies and is a member of the HiPerClocksTM family of high performance clock solutions from IDT. Using a 25MHz 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL[1:0]): 156.25MHz, 125MHz and 62.5MHz. The ICS8422002I-01 uses IDT’s 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Ethernet jitter requirements. The ICS8422002I-01 is packaged in a small 20-pin TSSOP package. ICS Pin Assignment nc VDDO Q0 nQ0 MR nPLL_SEL nc VDDA F_SEL0 VDD 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VDDO Q1 nQ1 GND VDD nXTAL_SEL REF_CLK XTAL_IN XTAL_OUT F_SEL1 Block Diagram F_SEL[1:0] Pulldown nPLL_SEL Pulldown 2 ICS422002I-01 20-Lead TSSOP 6.5...