2308A-2DCG

Overview

The Renesas Electronics Corporation 2308A-2DCG is a 3.3V PLL zero-delay clock multiplier designed for high-speed clock distribution and multiplication applications. It operates within an input frequency range of 10 MHz to 133 MHz, providing eight outputs distributed across two banks of four. The device achieves zero delay by aligning the phase between the incoming clock and output clocks. Key electrical parameters include a maximum operating frequency of 133 MHz, a supply voltage of 3.3 V, and a typical operating current of 45 mA. It features low jitter performance with cycle-to-cycle jitter under 200 ps and output skew less than 200 ps.

Feature Summary

• Zero-delay operation synchronizes output phases directly to the input clock reference.
• Configurable multiplication ratios including 1x, 2x, and 4x via address pins.
• Two independent output banks allow separate enable control for each group of four outputs.
• External feedback pin enables precise control over propagation delay.

Applications

• High-speed data acquisition systems requiring precise clock alignment.
• FPGA and ASIC clock distribution networks.
• Telecommunications equipment utilizing 133 MHz clock domains.
• Industrial control systems needing low-jitter clock generation.

Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to obsolescence notices. Check moisture sensitivity level (MSL) ratings before soldering to ensure proper handling during assembly. Confirm that the SOIC-16 package dimensions match the target PCB footprint requirements.

Selection Notes

Select the 2308A-2DCG when a 2x or 4x multiplication factor is required alongside zero-delay buffering. Ensure the application supports the 3.3V logic levels and LVCMOS output types. Compare against the 2308B series if industrial temperature ranges (-40°C to +85°C) are necessary instead of the commercial range (0°C to +70°C).

Part Context

This component belongs to the IDT/Renesas 2308 family of zero-delay buffers. It shares architectural similarities with the 2308-1, 2308-3, and 2308-4 variants, differing primarily in the fixed multiplication ratios programmed at the factory. The 'A' suffix typically denotes specific internal silicon revisions or packaging variations within the broader 2308 product line.

Replacement Considerations

Direct replacements include the 2308B-2DCG for similar functionality with potentially different temperature grading. The 23S08-2HDCG offers spread spectrum compatibility while maintaining similar electrical characteristics. Verify pinout compatibility before substituting with other members of the 2308 family.