TLK2521IPAPG4

Overview

The TLK2521IPAPG4 is a multi-gigabit serializer/deserializer (SerDes) from the WizardLink family, designed for high-speed bidirectional point-to-point data transmission. It supports serial interface speeds ranging from 1 Gbps to 2.5 Gbps, delivering up to 2.25 Gbps of effective data bandwidth. The device features an 18-bit parallel bus interface and utilizes an internal PLL for clock synthesis from a low-speed reference clock (GTX_CLK). Operating on a 2.5-V supply with 3-V I/O compatibility, it consumes 424 mW at 2.5 Gbps. Housed in a thermally enhanced 64-pin HTQFP PowerPAD package, it is rated for industrial temperatures from -40°C to 85°C.

Feature Summary

• Supports serial data rates from 1 Gbps to 2.5 Gbps with selectable signal preemphasis for lossy media compensation
• Integrates an internal multiplying clock synthesizer that generates a bit clock ten times the reference frequency
• Provides hot-plug protection and power-on reset functionality to manage initialization states safely
• Includes built-in loopback capability for functional self-testing of the physical interface

Applications

• High-speed backplane interconnect systems
• Point-to-point baseband data transmission over controlled impedance copper cables
• Interfaces connecting to optical converters or fiber-optic links

Procurement Notes

Verify the component matches the specific Texas Instruments WizardLink series designation. Confirm the package type corresponds to the 64-pin HTQFP PowerPAD variant. Ensure the suffix indicates compliance with relevant environmental standards as documented in the official datasheet. Cross-reference the manufacturer part number against authorized distribution channels to guarantee authenticity and traceability.

Selection Notes

Select this component when designing systems requiring serial-to-parallel conversion for 18-bit data paths. Ensure the application environment operates within the specified -40°C to 85°C temperature range. Verify that the PCB layout accommodates the thermal requirements of the PowerPAD package. Confirm that the system clock source meets the ±100 ppm tolerance requirement for the GTX_CLK input.

Part Context

This device belongs to the WizardLink family of multi-gigabit transceivers manufactured by Texas Instruments. It serves as a physical layer interface solution intended to replace parallel data architectures, reducing trace counts and connector pins. The technology enables scalable high-speed data links suitable for demanding industrial and communication applications.

Replacement Considerations

The TLK2521IPAPG4 is a lead-free version of the TLK2521IPAP. Designers should verify pinout and electrical compatibility if substituting with other WizardLink family members or legacy variants.