ICS ICS421004I-01
The ICS8421004I-01 is a 4 output HSTL Synthesizer optimized to generate Ethernet HiPerClockS™ reference clock frequencies and is a member of the HiPerClocksTM family of high performance clock solutions from ICS. The ICS8421004I-01 uses ICS’ 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Ethernet jitter requirements. The ICS8421004I-01 is packaged in a small 24-pin TSSOP package.| Part No. | ICS421004I-01 |
|---|---|
| Datasheet | ICS421004I-01 Download |
| Manufacturer |  ICS |
| Description | CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER |
| Buy | Stock & Price |
FEATURES
● Four HSTL outputs (VOHmax = 1.4V)● 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
GENERAL DESCRIPTION
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. ICS FREQUENCY SELECT FUNCTION TABLE M Divider Value 25 25 25 25 N Divider Value 4 5 10 not used M/N Divider Value 6.25 5 2.5 Output Frequency (25MHz Ref.) 156.25 125 62.5 not used PIN ASSIGNMENT nQ1 Q1 VDDO Q0 nQ0 MR nPLL_SEL nc VDDA F_SEL0 VDD F_SEL1 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 nQ2 Q2 VDDO Q3 nQ3 GND VDD nXTAL_SEL TEST_CLK GND XTAL_IN XTAL_OUT F_SEL1 F_SEL0...
