2308B-1DCGI8

Overview

The Renesas Electronics Corporation 2308B-1DCGI8 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 MHz, this device aligns the phase between the incoming clock and output clocks to eliminate propagation delay. It features two banks of four outputs each, controlled via select addresses, allowing independent tri-stating of output banks. The component operates at 3.3V VDD and supports external feedback synchronization. It is characterized for commercial operation temperatures ranging from 0°C to +70°C.

Feature Summary

• Zero-delay PLL architecture synchronizing input and output phases
• Two independent banks of four LVCMOS outputs with separate enable control
• External feedback pin for precise delay synchronization
• Low jitter performance with cycle-to-cycle jitter under 200 ps

Applications

• High-speed clock distribution systems
• Clock multiplication and buffering in digital logic circuits
• System testing modes requiring direct input clock drive

Procurement Notes

This component is identified as obsolete or end-of-life by major distributors. Verification of current stock availability through authorized channels is required. Buyers should confirm moisture sensitivity level (MSL 3) handling requirements and ensure compliance with RoHS3 specifications before procurement.

Selection Notes

Select the 2308B-1DCGI8 when a 1x multiplication ratio is required for up to eight outputs. Ensure the application voltage matches the 3.3V specification. Verify that the SOIC-16 package dimensions fit the PCB layout constraints. Consider the commercial temperature range limits if operating conditions exceed 70°C.

Part Context

The 2308B series includes variants such as 2308B-2, -3, and -4 offering different multiplication ratios (1x, 2x, 4x). The 2308B-1DCGI8 specifically provides a 1x ratio configuration. It belongs to the broader family of zero-delay buffers and multipliers used for precise timing alignment in high-frequency digital designs.

Replacement Considerations

Direct substitutes include other members of the 2308B family like the 2308B-2DCG for similar functionality with different scaling options. Cross-reference with IDT-branded equivalents if sourcing from legacy inventories, ensuring pin compatibility and electrical parameters match.