843001BGI-23LFT

Clock Generators, PLLs, Frequency Synthesizers Overview

The ICS843001I-23 is a low phase noise LVPECL/LVCMOS frequency synthesizer from the HiPerClockS family. It features a dual crystal interface supporting up to three communication standards, such as SONET (19.44MHz), GbE/10Gb Ethernet, and Fibre Channel (25MHz). The device generates reference clocks with typical RMS phase jitter of less than 1ps at 622.08MHz. It includes one 3.3V LVPECL output pair and one LVCMOS/LVTTL REF_OUT. Supply modes include VCC/VCCO configurations of 3.3V/3.3V, 3.3V/2.5V, or 2.5V/2.5V. Operating temperature ranges from -40°C to 85°C in a 24-pin TSSOP package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual crystal interface supports multiple standards including SONET, Ethernet, and Fibre Channel
• Low RMS phase jitter typically <1ps at 622.08MHz
• Configurable supply modes: 3.3V/3.3V, 3.3V/2.5V, or 2.5V/2.5V
• Outputs: One LVPECL differential pair and one LVCMOS/LVTTL single-ended

Clock Generators, PLLs, Frequency Synthesizers Applications

• OC48 SONET systems
• GbE/10Gb Ethernet interfaces
• Fibre Channel SAN applications
• PCI-E and SATA clock generation

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify RoHS compliance status (standard vs lead-free) when ordering. Confirm package suffix 'G' corresponds to the 24-lead TSSOP form factor. Ensure voltage requirements match the specific VCC/VCCO configuration needed for the target application logic levels.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select based on required output voltage levels (3.3V vs 2.5V) and input crystal frequency range (17.5MHz - 29.54MHz). Consider thermal resistance (θJA 82.3°C/W) for junction temperature calculations under maximum load conditions. Verify control pin configurations via SEL0/SEL1 and M/N dividers.

Clock Generators, PLLs, Frequency Synthesizers Part Context

Part of the IDT HiPerClockS family of high-performance clock solutions. Manufactured by Integrated Device Technology (IDT), which was acquired by Renesas Electronics Corporation. The 'BGI-23' designation indicates the specific variant within the ICS843001 series.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for cross-reference information.

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the VCO frequency range?

The Voltage Controlled Oscillator (VCO) operates within a range of 1.12GHz to 1.3GHz.

How is the LVPECL output terminated?

LVPECL outputs require termination resistors to create a DC current path to ground, typically matching 50Ω transmission line impedance.

Can unused inputs be left floating?

Yes, unused XTAL_IN/OUT and CLK inputs can be left floating, though adding a 1kΩ resistor to ground is recommended for protection.