ICS ICS844021I-01
The ICS844021I-01 is an Ethernet Clock Generator and a member of the HiPerClocksTM HiPerClockS™ family of high performance devices from ICS. The ICS844021I-01 uses an 18pF parallel resonant crystal over the range of 24.5MHz - 34MHz. For Ether net applications, a 25MHz crystal is used.FEATURES
● (1) Differential LVDS output● Crystal oscillator interface, 18pF parallel resonant crystal (24.5MHz - 34MHz)
● Output frequency range: 122.5MHz - 170MHz
● VCO range: 490MHz - 680MHz
● RMS phase jitter @ 125MHz, using a 25MHz crystal (1.875MHz - 20MHz): 0.45ps (typical)
● 3.3V or 2.5V operating supply
● -40°C to 85°C ambient operating temperature
GENERAL DESCRIPTION
The ICS844021I-01 has excellent <1ps phase jitter performance, over the 1.875MHz - 20MHz integration range. The ICS844021I-01 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space. ICS COMMON CONFIGURATION TABLE - Gb ETHERNET Inputs Crystal Frequency (MHz) 25 26.666 33.33 M 20 20 20 N 4 4 4 Multiplication Value M/N 5 5 5 Output Frequency (MHz) 125 133.33 166.66 BLOCK DIAGRAM OE Pullup PIN ASSIGNMENT VDDA GND XTAL_OUT XTAL_IN 1 2 3 4 8 7 6 5 VDD Q0 nQ0 OE XTAL_IN OSC XTAL_OUT Phase Detector VCO 490MHz - 680MHz N = ÷4 (fixed) Q0 nQ0 ICS844021I-01 8-Lead TSSOP 4.40mm x 3.0mm...