23S05-1HDCG

Overview

The Renesas 23S05-1HDCG is a high-speed phase-locked loop (PLL) clock buffer designed for zero-delay clock distribution. It operates within a frequency range of 10 MHz to 133 MHz and accepts one reference input to drive four low-skew outputs. The -1H variant provides higher drive capability compared to the standard -1 version, featuring faster rise and fall times. The device utilizes an on-chip PLL that locks to an input clock on the REF pin, with feedback obtained from the CLKOUT pad. In the absence of an input clock, the device enters a power-down mode with tri-stated outputs.

Feature Summary

• Zero delay operation achieved by aligning the phase between incoming and output clocks
• Four low-skew outputs with <250 ps skew specification
• High drive capability (-1H version) with 25 mA output drive at TTL levels
• On-chip PLL with internal feedback from CLKOUT pad

Applications

• High-speed clock distribution systems
• Board-level testing requiring tri-state modes
• Systems requiring zero input-output delay synchronization

Procurement Notes

Verify the specific suffix 'G' indicates tube packaging when sourcing. Confirm the '-1H' designation ensures the higher drive strength required for the application. Check RoHS compliance status in the latest datasheet as specifications may evolve. Ensure the operating temperature range matches the commercial or industrial requirements of the target system.

Selection Notes

Select this component over the standard 23S05-1DCG if faster rise and fall times are necessary for signal integrity at frequencies up to 133 MHz. The 23S05-1HDCG is suitable for applications requiring four buffered outputs with precise phase alignment. Consider the 23S09 series if eight outputs are needed instead of four.

Part Context

The 23S05-1HDCG belongs to the 23S05 family of zero-delay buffers. It is a 16-pin SOIC package version of the base 23S05 device. The -1H suffix distinguishes it from the -1 variant by offering enhanced drive strength while maintaining the same zero-delay PLL architecture and frequency range.

Replacement Considerations

The IDT23S05-1HDCG is listed as an alias part number. Verify pinout compatibility before substituting with other zero-delay buffer families.