Texas Instruments TLK4015AIGPV

Overview

TLK4015AIGPV from Texas Instruments is a quad-channel multigigabit serializer/deserializer IC designed for ultrahigh-speed bidirectional point-to-point data transmission. It operates at 0.6–1.5 Gbps per channel, supports 8b/10b encoding/decoding, features on-chip PLL clock synthesis from 30–75 MHz reference clocks, and delivers up to 1.2 Gbps effective payload per channel in industrial-temperature (–40°C to 85°C) environments-ideal for high-speed backplane interconnects.

For engineers reviewing the TLK4015AIGPV datasheet, TLK4015AIGPV pinout, TLK4015AIGPV application, or TLK4015AIGPV equivalent, this page provides verified technical context, validated pin functions, confirmed industrial-temperature operation, real-world latency specs (34–38 bit-times transmit, 76–107 bit-times receive), and precise alternative part comparisons for backplane, copper cable, and optical converter interface design.

Technical Context

The TLK4015AIGPV implements four independent transceiver channels with dedicated GTx_CLK inputs (30–75 MHz), each performing parallel-to-serial conversion of 16-bit TTL data into 20-bit 8b/10b-encoded NRZ serial streams transmitted differentially at 20× GTx_CLK rate. Each channel includes interpolator-based clock recovery, comma alignment (K28.5), and loss-of-signal detection with 200 mV differential input threshold.

It integrates on-chip PLLs for clock synthesis, supports hot-plug operation via power-on reset circuitry that holds Rx_CLK low and all I/Os in high-impedance during startup, and enables redundant port implementation through LCKREFNx-controlled receiver disable-allowing RDx[0–15], Rx_CLK, and Rx_DV/LOSx to enter high-Z state while maintaining transmit capability.

Key Specifications

Pinout & Package

TLK4015AIGPV uses a 19×19-mm 289-ball PBGA package (ball pitch: 1.0 mm), with dedicated analog/digital ground separation (GNDA/GND), isolated analog power rails (VDDAA–AD), and channel-specific I/O banks supporting independent enable/control signaling.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multigigabit SERDES applications.

Compared with TLK4015AIGPV, TLK4015IGPV offers identical performance at lower qualification cost, while TLK4015IZPV adds extended thermal stress validation-making the AIGPV variant the balanced choice for standard industrial backplane designs requiring proven reliability without premium screening.

Availability

TLK4015AIGPV is available at Aetrix Electronics and suitable for high-speed backplane interconnect, optical module interface, copper cable data link, and redundant port architecture applications requiring stable component supply across industrial temperature ranges.

Supply support for TLK4015AIGPV includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with decades of high-speed interface IP development.

The TLK4015AIGPV belongs to TI's multigigabit transceiver product line, engineered specifically for ultrahigh-speed point-to-point serial links in telecom infrastructure, industrial networking, and datacom backplanes.

FAQ

What is the maximum data rate supported by the TLK4015AIGPV per channel?

The TLK4015AIGPV supports a maximum serial data rate of 1.5 Gbps per channel. This corresponds to an effective parallel data payload of 1.2 Gbps (16 bits × 75 MHz GTx_CLK). The device operates across a configurable range from 0.6 Gbps to 1.5 Gbps, with all timing parameters-including transmit latency (34–38 bit-times) and receive latency (76–107 bit-times)-validated across this full range for the TLK4015AIGPV.

Does the TLK4015AIGPV require external clock cleaning circuitry?

No, the TLK4015AIGPV does not require external clock cleaning circuitry. Its on-chip PLL performs clock synthesis and jitter attenuation directly from the 30–75 MHz GTx_CLK reference input, and its interpolator-based clock recovery circuit extracts a clean Rx_CLK from the incoming serial data stream-delivering a recovered clock with sufficient stability for synchronous parallel bus interfacing without additional components.

How does the TLK4015AIGPV handle loss-of-signal conditions?

The TLK4015AIGPV detects loss-of-signal (LOS) when the differential amplitude on DINRxP/N falls below 200 mV. Upon detection, it asserts Rx_DV/LOSx and Rx_ER high while driving RDx[0–15] to high state-providing unambiguous fault signaling to the host protocol device. This behavior is fully implemented in silicon for the TLK4015AIGPV and requires no configuration; the threshold is fixed and factory-trimmed.

Can the TLK4015AIGPV operate with a 3.3-V I/O interface?

Yes, the TLK4015AIGPV supports 3-V compatible I/Os despite using a 2.5-V core supply. Its parallel data buses (TDx/RDx), control signals (Tx_EN, Rx_DV/LOSx), and reference clocks (GTx_CLK, Rx_CLK) are specified for TTL-level operation and tolerate 3.3-V signaling-enabling direct interfacing with 3.3-V FPGAs and ASICs without level shifters, as confirmed in the TLK4015AIGPV datasheet Section 7.

What is the purpose of the LCKREFNx pins on the TLK4015AIGPV?

The LCKREFNx pins (e.g., LCKREFNA on F4) control receiver lock mode per channel. When asserted low, they disable the receiver's clock recovery and place RDx[0–15], Rx_CLK, and Rx_DV/LOSx in high-impedance-enabling TLK4015AIGPV to operate in transmit-only mode. This function is essential for implementing redundant port architectures where multiple TLK4015AIGPV devices share a common receive data bus.