2305-1HDCG

Overview

The Renesas 2305-1HDCG is a zero-delay clock buffer featuring an integrated Phase-Locked Loop (PLL). It accepts one LVCMOS input and provides five low-skew LVCMOS outputs. The device operates at frequencies from 10 MHz to 133 MHz with a supply voltage range of 3 V to 3.6 V. Key electrical parameters include a maximum propagation delay of 0 ps, cycle-to-cycle jitter under 200 ps, and output skew less than 250 ps. It utilizes a high-drive -1H variant architecture for faster rise and fall times, housed in an 8-pin SOIC package.

Feature Summary

• Zero-delay PLL operation aligns output phase with input clock
• Five LVCMOS outputs with <250 ps skew
• High drive capability (-1H version) for fast edge rates
• Operates at 3.3V with 10-133 MHz frequency range

Applications

• SDRAM clock distribution
• Telecom equipment timing
• Datacom signal integrity
• PC motherboard clocking

Procurement Notes

Verify component status as the 2305-1HDCG may be discontinued or superseded by newer revisions such as the 2305-1HDCGI8. Confirm moisture sensitivity level and lead-free compliance against current RoHS requirements before procurement. Check for available alternative packaging options like tape-and-reel if tube quantities are unavailable.

Selection Notes

Select this part for applications requiring precise phase alignment between source and destination clocks without external RC networks. The -1H suffix indicates higher drive strength compared to standard variants. Ensure the design supports the 3.3V operating voltage and that the 8-pin SOIC footprint matches the PCB layout constraints.

Part Context

This component belongs to the IDT/Renesas 2305 family of zero-delay buffers. It serves as a high-speed clock distributor designed to minimize jitter and skew in digital systems. The device integrates the PLL feedback loop internally, simplifying board design compared to discrete solutions.

Replacement Considerations

The 2305-1HDCGI8 is a verified equivalent offering industrial temperature range support. Other family members like the 2305-1DCG provide similar functionality but may differ in drive strength or temperature specifications.