TNETE2201BPJDRG4

Drivers, Receivers, Transceivers Overview

The TNETE2201BPJDRG4 is a 1.25-Gigabit Ethernet transceiver manufactured by Texas Instruments, designed for ultra high-speed bidirectional point-to-point data transmission. It operates at a typical rate of 1.25 Gbps and interfaces with electrical cables, backplanes, or optical modules. The device accepts 8b/10b parallel encoded data bytes via CMOS inputs (TD0-TD9) clocked by a 125 MHz REFCLK. It serializes this data into differential nonreturn-to-zero (NRZ) signals at pseudo-ECL (PECL) voltage levels for transmission. The receiver deserializes incoming NRZ data, extracting the clock to output parallel 10-bit data words synchronized by two 62.5-MHz receive byte clocks (RBC0, RBC1). It features an internal loopback capability for self-testing and is housed in a 64-pin Quad Flat Pack (HTQFP) package.

Drivers, Receivers, Transceivers Feature Summary

• Performs data serialization and deserialization (SERDES) functions compliant with P802.3z specifications.
• Provides automatic locking onto incoming data streams without requiring pre-locking procedures.
• Includes an internal loop-back path activated by the LOOPEN pin for functional self-checks.
• Supports word alignment using the K28.5 character recognition scheme when SYNCEN is enabled.

Drivers, Receivers, Transceivers Applications

• Point-to-point baseband data transmission over controlled-impedance media such as printed-circuit board traces.
• Backplane interconnects utilizing approximately 50 Ω to 75 Ω impedance characteristics.
• Interfaces connecting to copper cables or fiber optical media modules.
• Physical layer interface development for gigabit ethernet systems.

Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the presence of the RG4 suffix indicates RoHS compliance and lead-free manufacturing status. Ensure the HTQFP package matches the required footprint on the target PCB layout. Validate that the operating temperature range meets the specific environmental requirements of the deployment scenario.

Drivers, Receivers, Transceivers Selection Notes

Select this transceiver for applications requiring 1.25 Gbps throughput over short-distance copper or optical links. Ensure the system design provides a stable 125 MHz reference clock to meet jitter and accuracy specifications. Verify that the power supply filtering for VCC_TX and VCC_RX adequately rejects noise, particularly if using larger filter capacitors which reduce PLL tracking bandwidth. Confirm compatibility with the protocol device's 10-bit parallel interface timing constraints.

Drivers, Receivers, Transceivers Part Context

This component belongs to the TNETE2201B family of gigabit Ethernet transceivers from Texas Instruments. The 'PJD' designation specifies the 64-pin Quad Flat Pack (QFP) package variant, while the 'RG4' suffix denotes RoHS-compliant and lead-free construction. This specific part number represents the tape-and-reel packaging format of the standard TNETE2201BPJD device.

Drivers, Receivers, Transceivers Replacement Considerations

The TNETE2201BPJW is listed as a manufacturer-recommended alternative. Designers should verify that any substitute maintains identical pinout compatibility and electrical characteristics before integration.