840004AGLFT

Specifications

Temperature C Voltage 3.3 V Package TSSOP 20 Speed NA Core Supply Voltage (VDD) Output Supply Voltage (VDDO) No. of Outputs No. of Inputs Output Style Input Style Max. Output Frequency Min. Output Frequency Max. Input Frequency Min. Input Frequency Temp. Grade VCXO Spread Spectrum


Description

4 LVCMOS OUT SYNTHESIZER
ICS840004 Features

• Four LVCMOS/LVTTL outputs, 17ohms typical output impedance
• Selectable crystal oscillator interface or LVCMOS single-ended input
• Supports the following input frequencies: 212.5MHz, 159.375MHz, 156.25MHz, 106.25MHz and 53.125MHz
• VCO range: 560MHz - 700MHz
• RMS phase jitter @ 212.5MHz (637kHz - 10MHz): 0.49ps typical, VDDO = 3.3V
• Phase noise:
• Offset Noise Power
• 100Hz -88.8 dBc/Hz
• 1kHz -109.0 dBc/Hz
• 10kHz -116.1 dBc/Hz
• 100kHz -117.5 dBc/Hz
• Full 3.3V or 3.3V core/2.5V output supply mode
• 0°C to 70°C ambient operating temperature
• Available in both standard and lead-free RoHS compliant packages

Description
The ICS840004 is a 4 output LVCMOS/LVTTL Synthesizer optimized to generate Ethernet reference clock frequencies and is a member of the HiPerClocksTM family of high performance clock solutions from ICS. Using a 26.5625MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL1:0): 212.5MHz, 159.375MHz, 156.25MHz, 106.25MHz, and 53.125MHz. The ICS840004 uses ICS' 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical random rms phase jitter, easily meeting Ethernet jitter requirements. The ICS840004 is packaged in a small 20-pin TSSOP package.