843003AGLFT

Specifications

Temperature C Voltage 3.3 V Package TSSOP 24 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

3 LVPECL OUT SYNTHESIZER
ICS843003 Features

• Three 3.3V LVPECL outputs on two banks, A
• Bank with one LVPECL pair and B Bank with 2 LVPECL output pairs
• Using a 31.25MHz or 26.041666 crystal, the two output banks can be independently set for 625MHz, 312.5MHz, 156.25MHz or 125MHz
• Selectable crystal oscillator interface or
• LVCMOS/LVTTL single-ended inputVCO range: 560MHz to 700MHz
• RMS phase jitter @ 156.25MHz (1.875MHz - 20MHz): 0.51ps (typical)
• Phase noise:
• Offset Noise Power
• 100Hz -96.8 dBc/Hz
• 1kHz -119.1 dBc/Hz
• 10kHz -126.4 dBc/Hz
• 100kHz -127.0 dBc/Hz
• Full 3.3V supply mode
• 0°C to 70°C ambient operating temperature
• Industrial temperature available upon requested
• Available in both standard and lead-free RoHS compliant packages

Description
The ICS843003 is a 3 differential output LVPECL Synthesizer designed to generate Ethernet reference clock frequencies and is a member of the HiPerClocks? family of high performance clock solutions from IDT. Using a 31.25MHz or 26.041666MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the settings of 4 frequency select pins (DIV_SEL[A1:A0], DIV_SEL[B1:B0]): 625MHz, 312.5MHz, 156.25MHz, and 125MHz. The 843003 has 2 output banks, Bank A with 1 differential LVPECL output pair and Bank B with 2 differential LVPECL output pairs.

The two banks have their own dedicated frequency select pins and can be independently set for the frequencies mentioned above. The ICS843003 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 ICS843003 is packaged in a small 24-pin TSSOP package.