23S09-1DCGI

Overview

The Renesas Electronics 23S09-1DCGI is a high-speed phase-locked loop (PLL) clock buffer designed for zero-delay clock distribution. It accepts one reference input and drives two banks of four low-skew outputs, totaling nine outputs. The device operates within a frequency range of 10MHz to 133MHz at 3.3V. It features an on-chip PLL that locks to the 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 less than 12μA current draw in the commercial temperature range.

Feature Summary

• Zero-delay buffer architecture aligns output clock phase with the incoming reference clock.
• Operates at frequencies up to 133MHz with low skew characteristics.
• Includes on-chip PLL with internal feedback from the CLKOUT pad.
• Features automatic power-down mode with tri-stated outputs when no input clock is present.

Applications

• High-speed clock distribution systems
• Digital signal processing applications requiring precise timing
• Communication equipment clock synchronization

Procurement Notes

Verify the specific suffix 'I' for industrial temperature range (-40°C to +85°C) against the required operating conditions. Confirm package type is 16-SOIC. Check RoHS compliance status as it varies by manufacturing date. Ensure compatibility with LVTTL input levels. Consult official datasheets for moisture sensitivity level handling requirements before assembly.

Selection Notes

Select this component when a single clock source needs to be distributed to multiple loads with minimal skew. The -1H variant offers higher drive strength if load capacitance exceeds standard specifications. Ensure the application frequency falls within the 10MHz to 133MHz operational range. Verify that the 3.3V supply voltage matches the system design constraints.

Part Context

This part belongs to the 23S09 family of zero-delay buffers. It is a 16-pin version derived from the 23S05 series. The device is manufactured by Renesas Electronics Corporation, formerly IDT. It is available in SOIC packages. The -1 designation indicates standard drive capability compared to the -1H high-drive version.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the verified source material. Evaluate alternative clock buffers based on pin compatibility, electrical specifications, and package dimensions. Verify functional equivalence regarding PLL configuration and output drive strength before substitution.