Texas Instruments DS15EA101SQX/NOPB

Overview

DS15EA101SQX/NOPB from Texas Instruments is an adaptive cable equalizer IC designed for high-speed serial data recovery over lossy copper media. It supports 150 Mbps to 1.5+ Gbps data rates, delivers up to 35 dB boost at 750 MHz, features LOS detection and output enable, and operates from a single 3.3V supply with 210 mW typical power at 1.5 Gbps - deployed in security camera video extension over CAT5e/6/7 or coaxial cables.

For engineers reviewing the DS15EA101SQX/NOPB datasheet, DS15EA101SQX/NOPB pinout, DS15EA101SQX/NOPB application, or DS15EA101SQX/NOPB equivalent, key selection criteria include adaptive equalization range (0–35 dB), differential input/output compatibility (CML/LVPECL/LVDS), residual jitter performance (≤0.25 UI at 1.5 Gbps), industrial temperature support (−40°C to +85°C), and WQFN-16 package integration for multi-channel cable extender designs.

Technical Context

The DS15EA101SQX/NOPB implements a continuous-time linear equalizer (CTLE) architecture with automatic adaptation to cable loss profiles across 150 Mbps–1.5+ Gbps. Its loop filter (CAP+/CAP−) enables dynamic gain adjustment based on signal integrity degradation, supporting both single-ended and differential inputs while maintaining 50 Ω differential outputs.

It integrates a dedicated LOS detector that asserts high when input signal amplitude falls below threshold, and an EN pin that synchronously disables outputs - enabling low-power idle states in cable extender systems. The device interfaces directly with CML, LVPECL, and LVDS receivers without external termination, leveraging internally matched 50 Ω output drivers.

Key Specifications

Pinout & Package

DS15EA101SQX/NOPB uses a 4 × 4 mm WQFN-16 package (RGH0016A) with wettable flanks and an exposed thermal pad (DAP) requiring solder connection to PCB ground for thermal and EMI performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar adaptive equalizer applications.

Compared with DS15BA101 (serializer-only) and MAX3801 (fixed-gain telecom equalizer), DS15EA101SQX/NOPB uniquely combines adaptive CTLE, integrated LOS/EN logic, industrial temperature operation, and plug-and-play compatibility with CML/LVPECL/LVDS sources - making it the sole solution for cost-sensitive, variable-length video and display extension in harsh environments.

Availability

DS15EA101SQX/NOPB is available at Aetrix Electronics and suitable for security camera video extension, remote LCD/LED panel linking, and industrial vision system data recovery requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DS15EA101SQX/NOPB 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.

The DS15EA101SQX/NOPB belongs to TI's high-speed interface portfolio, engineered specifically for robust, low-latency copper cable extension of serial video and data links in cost-sensitive, thermally demanding applications.

FAQ

What is the primary function of the DS15EA101SQX/NOPB in a cable extension system?

The DS15EA101SQX/NOPB functions as an adaptive receive-side equalizer that restores signal integrity in high-speed serial data transmitted over lossy copper cables. It automatically adjusts its equalization gain from 0 to 35 dB to compensate for channel attenuation - enabling reliable 150 Mbps to 1.5+ Gbps data recovery without manual tuning. In systems using the DS15BA101 serializer, the DS15EA101SQX/NOPB completes the cable extender chipset by recovering degraded signals before deserialization.

Does the DS15EA101SQX/NOPB support both differential and single-ended inputs?

Yes, the DS15EA101SQX/NOPB supports both differential and single-ended AC-coupled inputs. Differential mode uses IN+ and IN− pins with 100 Ω termination; single-ended mode applies the signal to IN+ while IN− is biased to common-mode voltage (VCM ≈ 1.9 V). Input amplitude must be 800 mV_P-P ±10% for differential or 800 mV ±10% for single-ended. Transformer coupling is not supported per the DS15EA101SQX/NOPB datasheet.

How does the LOS and EN functionality work on the DS15EA101SQX/NOPB?

The DS15EA101SQX/NOPB provides a dedicated open-drain LOS output that goes high when input signal amplitude drops below detection threshold, and an active-high EN pin that disables outputs when low. When tied together, they form an autonomous shutdown circuit: loss of signal pulls LOS high, which forces EN low and silences the outputs - preventing invalid data propagation. This behavior is confirmed in the DS15EA101SQX/NOPB's DEVICE OPERATION section and electrical characteristics table (VLOS = 2.6 V for invalid signal).

What package type and thermal considerations apply to the DS15EA101SQX/NOPB?

The DS15EA101SQX/NOPB uses a 4 × 4 mm WQFN-16 package (RGH0016A) with an exposed thermal pad (DAP) that must be soldered to a PCB ground plane. Thermal resistance is θ_JA = 42.1°C/W and θ_JC = 8.2°C/W. Per TI's board layout guidelines, the DAP requires ≥78% solder coverage and thermal vias for optimal performance. This construction enables operation at full 210 mW power dissipation within the −40°C to +85°C industrial range specified for DS15EA101SQX/NOPB.

Can the DS15EA101SQX/NOPB drive LVDS receivers directly?

Yes, the DS15EA101SQX/NOPB can drive LVDS receivers directly using its 50 Ω differential CML outputs. TI's application diagrams (Figures 1 and 2) show DC-coupled connections to LVDS inputs with no external termination required - because the DS15EA101SQX/NOPB's outputs are internally terminated to 50 Ω and produce a 750 mV_P-P differential swing compatible with standard LVDS input thresholds. Receiver common-mode range must accommodate ~1.2 V CML common mode, as verified in the DS15EA101SQX/NOPB's VOS specification (VCC/2).