2309-1HDCGI

Overview

The Renesas 2309-1HDCGI is a low phase noise, high-speed PLL-based zero delay buffer designed for clock distribution. It accepts one LVTTL input and provides nine LVTTL outputs with a 1:9 ratio. The device operates at frequencies up to 133 MHz within a 3V to 3.6V supply range. Key electrical parameters include a maximum propagation delay of 0 ps, output skew under 250 ps, and cycle-to-cycle jitter below 200 ps. It is housed in a 16-SOIC package and supports commercial temperature operation from 0°C to +70°C.

Feature Summary

• Zero Delay Buffer architecture aligns output clock phase with the incoming reference clock.
• Low Skew Performance: Output skew is specified as less than 250 ps.
• Low Jitter: Cycle-to-cycle jitter is maintained below 200 ps.
• Integrated PLL: On-chip phase-locked loop eliminates the need for external RC networks.

Applications

• High-speed clock distribution systems requiring low skew.
• System synchronization where zero delay alignment is critical.
• Digital signal processing equipment operating at frequencies up to 133 MHz.

Procurement Notes

Verify the suffix 'I' indicates industrial temperature range (-40°C to 85°C) or confirm if it denotes a specific variant, as standard datasheets often list 'G' for commercial (0°C to 70°C). Ensure RoHS compliance status matches current manufacturing notices. Check moisture sensitivity level (MSL 3) requirements for storage and handling before assembly.

Selection Notes

Select this component when a single clock source must drive multiple loads with minimal skew. Compare against the 2309A series for drive strength differences; the -1H variant offers higher drive capability. Confirm that the LVTTL input/output voltage levels match the system logic requirements. Verify package availability in SOIC-16 versus TSSOP options based on board space constraints.

Part Context

This part belongs to the IDT/Renesas 2309 family of zero delay buffers. It is functionally similar to the 2305A but expanded to 16 pins to support nine outputs. The device is widely used in telecommunications and computing infrastructure for clock fan-out applications.

Replacement Considerations

The PL123-09SC-R by Microchip Technology is listed as a similar alternative. Verify pinout compatibility and electrical specifications before substitution.