CY2DP814ZXCT

Overview

The CY2DP814ZXCT is a 1:4 clock fanout buffer manufactured by Cypress Semiconductor Corp, designed for data communications clock management. It features a single configurable input supporting LVDS, LVPECL, or LVTTL logic families, and provides four differential pairs of LVPECL outputs. The device operates on a 3.135V to 3.465V supply voltage with a maximum frequency of 450 MHz. Key electrical characteristics include a typical propagation delay of less than 4 ns and an output-to-output skew of 85 ps. It is housed in a 16-TSSOP package and supports commercial temperature ranges from 0°C to 70°C.

Feature Summary

• Configurable single input accepts LVDS, LVPECL, or LVTTL signals via the CONFIG pin.
• Four differential LVPECL output pairs capable of driving 50-ohm loads.
• Low propagation delay (typical < 4 ns) and low output skew (typical 85 ps).
• Operates at VDD = 3.3V ± 5% with a maximum frequency of 450 MHz.

Applications

• Data communications clock distribution.
• Level translation from single-ended inputs to LVPECL.
• Distribution of LVDS-based clock signals.

Procurement Notes

Verify the 'T' suffix indicates tape and reel packaging rather than tube. Confirm the component is lead-free and matches the commercial temperature range specifications. Ensure the ordering code aligns with the 16-pin TSSOP package dimensions provided in the datasheet.

Selection Notes

Select this component when a single clock source needs to drive multiple LVPECL destinations. The configurable input allows flexibility for LVDS or LVTTL sources. Ensure the system power supply remains within the 3.135V to 3.465V range for optimal performance.

Part Context

This part belongs to the Cypress CY2 series of network circuits, produced using 0.35-micron CMOS technology. The CY2DP814 specifically addresses the need for reducing loading on input clocks while providing high-speed signal distribution in networking equipment.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

How is the input logic family selected?

The input receiver configuration is determined by the state of Pin 2 (CONFIG). A logic low selects LVDS or LVPECL, while a logic high selects LVTTL/LVCMOS.

What is the maximum operating frequency?

The maximum frequency is 450 MHz under standard load conditions with a 50% duty cycle at VDD = 3.3V.

Does the device support inversion of the input signal?

Yes, for LVTTL/LVCMOS inputs, grounding either IN+ or IN- can configure the logic to be true or inverted.