CY2308ZXI-1HT

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY2308ZXI-1HT is a 3.3 V Zero Delay Buffer manufactured by Infineon Technologies, housed in a 16-pin TSSOP package with tape and reel industrial temperature rating (-40 °C to +85 °C). It features an on-chip PLL that locks to a reference clock input (REF) and distributes the signal across eight LVCMOS outputs organized into two banks of four. The device supports operating frequencies from 10 MHz to 133.3 MHz. Key electrical parameters include a typical cycle-to-cycle jitter of 75 ps at 66.67 MHz with a 15 pF load, an input-to-output delay of ±250 ps, and output-to-output skew of less than 200 ps within the same bank.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero input-output propagation delay achieved through capacitive load adjustment on the feedback pin
• Two independent banks of four outputs, each controllable via select inputs for three-stating or bypass modes
• Configurable frequency multiplication or division based on the selected output driving the feedback loop
• Low power consumption with automatic PLL shutdown when no rising edges are detected on the reference input

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-speed clock distribution in PC and workstation systems
• Datacom and telecom equipment requiring low skew clocking
• Multi-device synchronization where inter-device skew must be minimized

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix configuration against the ordering information table to ensure correct package type and temperature range. Confirm that the 'Z' indicates TSSOP and 'I' denotes industrial grade. Check for any applicable errata regarding startup lock time issues and apply the recommended workaround if necessary during system design validation.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when zero delay buffering is required for 3.3 V logic families. Ensure the feedback path is connected to an output with appropriate loading to achieve desired skew characteristics. Consider the -1H variant if faster rise and fall times are needed compared to standard versions. Verify that the application does not require phase integrity without using the CY2308-2 configuration.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the CY2308 family of 3.3 V Zero Delay Buffers. It is functionally similar to other variants like CY2308SXI-1HT but differs in package (TSSOP vs SOIC) and potentially drive strength depending on the base model number (-1, -2, etc.). The ZXI-1HT specifically denotes the TSSOP package, Industrial temperature range, and Tape & Reel packaging format.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

CY2308ZXI-1H (Tube packaging instead of Tape & Reel)