CY2308ESXC-2

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY2308ESXC-2 is a 3.3V Zero Delay Buffer manufactured by Infineon Technologies, originally designed by Cypress Semiconductor. It features an on-chip PLL that locks to an input clock presented on the REF pin, with feedback driven into the FBK pin from one of the outputs. The device provides eight low skew outputs organized into two banks of four, controlled by select inputs S1 and S2. It supports operating frequencies from 10 MHz to 133 MHz. The part is available in a 16-pin 150 mil SOIC package (SXC suffix) for commercial temperature range (0°C to 70°C).

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero input-output propagation delay adjustable by capacitive load on the FBK input.
• Two banks of four outputs, three-stateable by two select inputs.
• On-chip PLL enables distribution of high-speed clocks with low skew.
• Configurable frequency multiplication including 2X and 1X outputs.

Clock Generators, PLLs, Frequency Synthesizers Applications

• PC clock distribution
• Workstation clock distribution
• Datacom applications
• Telecom applications

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm the specific ordering suffix matches the required package type and temperature rating. Check current availability status as this component may be subject to end-of-life restrictions or limited supply conditions.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the CY2308ESXC-2 when zero delay buffering with 2X frequency multiplication is required. Ensure the system load capacitance aligns with the specified limits for the target operating frequency. Verify that the 16-pin SOIC package fits the PCB layout constraints and that the commercial temperature range meets the application requirements.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the CY2308 family of 3.3V Zero Delay Buffers. The 'ESXC' designation indicates a 16-pin SOIC package with commercial temperature rating. Other variants in the series include different output configurations such as reference-only or 4X multiplication, and packages like TSSOP.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes within the same family include CY2308SC-2 for standard drive or CY2308SI-2 for industrial temperature. Cross-manufacturer equivalents like NB2308AI4D offer similar zero-delay buffer functionality but require verification of electrical characteristics and pin compatibility.

Clock Generators, PLLs, Frequency Synthesizers FAQ

How is the zero input-output delay achieved?

Zero input-output delay is achieved by closing the feedback loop where the FBK pin is driven from one of the outputs. The relative loading of this output compared to the remaining outputs adjusts the input-output delay.

What is the function of the S1 and S2 select inputs?

The S1 and S2 inputs control the state of the output banks. They can enable or disable Bank A and Bank B, route the reference clock directly to outputs for testing, or shut down the PLL to reduce power consumption.

What are the frequency capabilities of the CY2308-2 configuration?

In the CY2308-2 configuration, connecting the feedback to Bank A provides Reference/2 on Bank B while Bank A runs at Reference. Connecting feedback to Bank B provides 2X Reference on Bank A while Bank B runs at Reference.