IDT2308-2HDCGI8

Clock Generators, PLLs, Frequency Synthesizers Overview

The IDT2308-2HDCGI8 is a high-speed phase-lock loop (PLL) clock multiplier manufactured by Renesas Electronics Corporation. It operates within the commercial temperature range of 0°C to +70°C and supports frequencies from 10MHz to 133.3MHz. The device provides zero-delay buffering with output skew under 200ps and cycle-to-cycle jitter below 200ps. It features two banks of four outputs each, allowing distribution of one input clock to eight outputs. The part number suffix indicates a Pb-free configuration in a 16-pin SOIC package with tape and reel shipping.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero Delay Buffer (ZDB) functionality aligns output phase with the incoming reference clock
• Configurable multiplication options including 1x and 2x for the -2 variant
• External feedback pin allows user control over input-output delay
• Separate output enable controls for Bank A and Bank B

Clock Generators, PLLs, Frequency Synthesizers Applications

• SDRAM synchronization
• Telecom equipment clocking
• Datacom interface timing
• PC motherboards and workstations
• Critical path delay designs

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify that the ordering suffix 'G' confirms the component is lead-free and RoHS compliant as per manufacturer specifications. Confirm the 'I' suffix matches the required industrial or commercial temperature rating for the specific application environment. Ensure the '8' suffix corresponds to the tape and reel packaging format required for automated assembly processes.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when a 1x or 2x frequency multiplication ratio is required relative to the reference input. The -2 variant allows Bank A to run at the reference frequency while Bank B runs at half speed, or vice versa depending on address selection. Verify that the load capacitance requirements fit within the 15pF to 30pF limits specified for the target operating frequency.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the IDT2308 family of 3.3V Zero Delay Clock Multipliers. The base IDT2308 series includes variants such as -1, -3, and -4 with different pre-scaling and multiplication configurations. The -2HDCGI8 specifically denotes the standard drive version of the -2 configuration in a Pb-free SOIC package.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Compatible substitutes include other IDT2308-2 variants such as IDT2308-2DCG8 for tube packaging or IDT2308-2HDCGI8 if higher drive strength is needed. Cross-model replacements like IDT23S08E-2 require verification of frequency range extensions up to 200MHz.