2308B-2DCG

Overview

The Renesas Electronics Corporation 2308B-2DCG is a high-speed phase-lock loop (PLL) clock multiplier designed for zero-delay clock distribution applications. Operating within a frequency range of 10 MHz to 133.3 MHz, this device accepts one clock input and distributes it to two banks of four outputs each. It features LVCMOS/LVTTL input and output types with a 3V to 3.6V supply voltage. The component achieves low jitter of less than 200 ps cycle-to-cycle and output skew under 200 ps. Packaged in a 16-SOIC format, it supports external feedback for precise synchronization.

Feature Summary

• Zero-delay buffer architecture aligns output phase with the incoming clock input
• Dual output bank configuration with separate enable controls for each bank
• Low jitter performance with maximum cycle-to-cycle jitter under 200 ps
• Supports 1x multiplication ratio with selectable prescaling options

Applications

• High-speed clock distribution networks requiring phase alignment
• System testing modes utilizing direct input clock drive
• Power-sensitive designs leveraging automatic power-down tri-state functionality

Procurement Notes

The 2308B-2DCG is classified as obsolete or end-of-life by the manufacturer. Availability is restricted to surplus stock from third-party distributors. Verification of moisture sensitivity level (MSL 3) and RoHS compliance status is required prior to procurement due to potential storage duration impacts on solderability.

Selection Notes

Select this component when a fixed 1x multiplication ratio is sufficient for frequencies up to 133.3 MHz. The 16-SOIC package is suitable for surface-mount assembly. Designers must account for the external feedback pin requirement to close the PLL loop and ensure proper output synchronization relative to the input reference clock.

Part Context

This part belongs to the 2308B series of zero-delay clock multipliers. It shares architectural similarities with variants such as the 2308B-4DCG but differs in supported multiplication ratios. The series is characterized for commercial operation temperatures ranging from 0°C to +70°C.

Replacement Considerations

Direct functional substitutes include other members of the 2308B family, such as the 2308B-4DCG, provided the specific multiplication requirements match the application needs. Cross-referencing datasheets for pin compatibility and electrical specifications is essential.