2308B-1HDCG

Overview

The Renesas Electronics 2308B-1HDCG is a high-speed phase-lock loop (PLL) clock multiplier designed for zero-delay clock distribution. It operates within a frequency range of 10 MHz to 133 MHz, utilizing a single LVCMOS input to drive eight LVCMOS outputs organized into two independent banks of four. The device achieves zero delay by synchronizing output phases with the input clock via an external feedback pin. Key electrical parameters include a maximum cycle-to-cycle jitter of 200 ps and output skew under 200 ps. It functions on a 3.3 V supply voltage and is housed in a 16-pin SOIC package.

Feature Summary

• Zero-delay PLL architecture aligns output phase with input clock
• Eight LVCMOS outputs distributed across two independently enabled banks
• Frequency range from 10 MHz to 133 MHz
• Cycle-to-cycle jitter and output skew both specified at less than 200 ps

Applications

• High-speed clock distribution networks
• Clock multiplication systems requiring phase alignment
• Digital logic synchronization interfaces

Part Context

The 2308B-1HDCG belongs to the IDT/Renesas 2308B family of zero-delay buffers. This specific suffix denotes the 1x multiplication ratio variant, meaning it distributes the input frequency without scaling. Other variants in the series offer different prescaling and multiplication options, such as 2x or 4x ratios, but this component provides a direct 1:8 fan-out with zero propagation delay relative to the input edge.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify compatibility with alternative clock multipliers based on package dimensions, voltage levels, and timing specifications.