2308-1DCG

Overview

The Renesas Electronics 2308-1DCG is a 3.3V Zero Delay Clock Multiplier designed for high-speed clock distribution and multiplication applications. Operating within a frequency range of 10 MHz to 133 MHz, this device utilizes a Phase-Lock Loop (PLL) architecture to achieve zero delay by aligning the phase between the incoming clock and output clocks. It features eight LVCMOS outputs organized into two independent banks of four, allowing separate control via select addresses. The component operates on a single 3.3V supply with a maximum operating current of 45 mA and is housed in a 16-pin SOIC package.

Feature Summary

• Zero Delay Buffer Architecture: Aligns output clock phase with input reference using external feedback loop.
• Dual Output Banks: Distributes one input clock to two banks of four LVCMOS outputs each.
• Frequency Range: Supports input and output frequencies from 10 MHz to 133 MHz.
• Low Jitter Performance: Characterized with cycle-to-cycle jitter less than 200 ps.
• Flexible Control: Includes separate output enable for each bank and power-down mode drawing less than 25 uA.

Applications

• High-speed clock distribution networks requiring precise phase alignment.
• Multiplication of reference clocks for system timing requirements.
• Buffering and driving multiple synchronous logic loads.

Procurement Notes

The 2308-1DCG is identified as an obsolete or End-of-Life product in available distributor catalogs. Verification of availability requires checking authorized distributors for remaining stock or surplus inventory. Users should confirm the specific suffix 'DCG' corresponds to the SOIC-16 package and commercial temperature range before procurement planning.

Selection Notes

Select the 2308-1DCG when a 1x multiplication ratio is required for up to eight loads. Ensure the design accommodates the 16-pin SOIC footprint and 3.3V logic levels. Verify that the application does not require spread spectrum capabilities, which are reserved for the 23S08 series variants.

Part Context

This component belongs to the IDT/Renesas 2308 family of zero-delay clock multipliers. Variants such as -2, -3, and -4 offer different multiplication ratios (2x, 4x), while the 23S08 series adds spread spectrum compatibility. The 2308-1DCG specifically provides a 1:1 ratio configuration.

Replacement Considerations

Direct functional replacements include other members of the 2308 family like the 2308-2DCG or 2308-4DCG if higher multiplication ratios are acceptable. For spread spectrum support, the 23S08-1DCG is the compatible alternative. Cross-reference part numbers may include IDT2308-1DCG.