IDT23S08-4DC

Clock Generators, PLLs, Frequency Synthesizers Overview

The IDT23S08-4DC is a 3.3V zero delay clock multiplier manufactured by Renesas Electronics Corporation (formerly IDT). It operates within a frequency range of 10MHz to 133MHz and distributes one reference input to two banks of four outputs, providing a fixed 2x multiplication factor for both banks. The device features spread spectrum compatibility, low jitter (<200 ps cycle-to-cycle), and output skew under 200 ps. It utilizes an external PLL feedback loop via the FBK pin to synchronize outputs with the input clock, ensuring zero delay alignment. The component is housed in a 16-pin SOIC package and supports commercial temperature operation from 0°C to +70°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Fixed 2x multiplication configuration for both output banks
• Spread spectrum compatible input handling
• External PLL feedback synchronization for zero delay
• Low jitter performance (<200 ps) and output skew (<200 ps)

Clock Generators, PLLs, Frequency Synthesizers Applications

• SDRAM clock distribution
• Telecom systems
• Datacom applications
• PC motherboards and workstations

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix 'DC' confirms the standard drive version and commercial temperature range (0°C to +70°C). Confirm the package type matches the required 16-pin SOIC footprint. Check for RoHS compliance status as non-green parts have reached end-of-life. Ensure the ordering code aligns with tube or tape-and-reel shipping preferences if applicable.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part when a fixed 2x clock multiplication is required for both output banks without variable scaling options. It is suitable for designs needing spread spectrum signal transparency. Compare against -1H, -2H, and -5H variants if high drive strength or different multiplication ratios are needed. Ensure load capacitance requirements (15pF to 30pF) match the target system design.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the IDT23S08 family of zero delay clock multipliers. The '-4' suffix specifically denotes the 2x multiplication variant for both Bank A and Bank B. Other family members include -1 (1x), -2 (1x/2x), -3 (2x/4x), and high-drive '-H' variants. The 'DC' suffix indicates the standard drive capability and commercial temperature grade.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes within the same family include IDT23S08-4DCI for industrial temperature range (-40°C to +85°C). For different multiplication ratios, consider IDT23S08-1DC (1x) or IDT23S08-2DC (1x/2x). High drive alternatives are IDT23S08-1HDC, IDT23S08-2HDC, and IDT23S08-5HDC.