Texas Instruments SN75DP130SSRGZT

Overview

SN75DP130SSRGZT from Texas Instruments is a single-channel DisplayPort™ 1:1 redriver supporting DP v1.1a/v1.2 and HBR2 data rates up to 5.4 Gbps per lane, HDMI 1.4b TMDS signaling up to 340 MHz, and auto-link training for signal integrity recovery in notebook PCs and docking stations.

For engineers reviewing the SN75DP130SSRGZT datasheet, SN75DP130SSRGZT pinout, SN75DP130SSRGZT application, or SN75DP130SSRGZT equivalent, this device delivers programmable input equalization, tunable output voltage swing (238–1300 mVpp) and pre-emphasis (0–9.5 dB), dual-supply operation (VCC = 3.3 V, VDDD = 1.05 V), 48-pin VQFN package, and 2-kV HBM ESD protection - all critical for high-speed DP++ interconnect design.

Technical Context

The SN75DP130SSRGZT implements a fully configurable analog redriver architecture with four-stage input variable equalization (up to 18 dB gain for HBR2) and four primary differential output voltage swing (VOD) levels plus fine-tuned secondary boost via I²C. It supports both DP-native and DP++ Dual-Mode operation, enabling seamless interface to AMD/Intel/NVIDIA GPUs through dedicated AUX_SRC/AUX_SNK and DDC channels.

Its functional modes include Output Disable (squelch), Standby (~2 mW), Shutdown (<4 mA), and D3 power-down, with automatic activity detection on Main Link inputs. The device monitors AUX channel commands during link training and dynamically adjusts EQ and output parameters without host intervention.

Key Specifications

Pinout & Package

SN75DP130SSRGZT uses a 48-pin 7 mm × 7 mm VQFN package with exposed thermal pad. Pin functions are validated per TI SLLSE57E datasheet Rev. March 2015, including dedicated Main Link (IN0p/n–IN3p/n, OUT0p/n–OUT3p/n), AUX/DDC (AUX_SRCp/n, AUX_SNKp/n, SDA_DDC, SCL_DDC), HPD/CAD (HPD_SRC, HPD_SNK, CAD_SRC, CAD_SNK), control (RSTN, EN, ADDR_EQ), and dual-supply (VCC, VDDD, VDDD_DREG, GND) terminals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar DisplayPort redriver applications.

Compared with SN65DP159RSBT and PS8315-SP, SN75DP130SSRGZT provides optimal balance of HBR2 performance, low-power modes, and DP++ flexibility - making it ideal for mobile docking and GPU-adjacent redriving where power efficiency and HDMI compatibility are prioritized over HBR3 or re-timing.

Availability

SN75DP130SSRGZT is available at Aetrix Electronics and suitable for notebook PCs, desktop GPU signal extension, PC docking stations, and standalone video cards requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for SN75DP130SSRGZT 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 and embedded processing technologies, with decades of expertise in high-speed interface solutions for computing and display markets.

The SN75DP130SSRGZT belongs to TI's DisplayPort redriver product line, designed specifically to solve signal integrity challenges in mobile and desktop display interconnects - balancing power efficiency, programmability, and DP++ interoperability.

FAQ

What is the primary function of the SN75DP130SSRGZT in a DisplayPort system?

The SN75DP130SSRGZT functions as a single-channel DisplayPort 1:1 redriver that regenerates degraded high-speed DP signals - compensating for PCB trace loss and switching-related distortion. It supports full DP v1.2 HBR2 (5.4 Gbps) and DP++ Dual-Mode for HDMI/DVI compatibility. Its role is to restore signal integrity without altering protocol timing, making it essential for maintaining compliance across long or lossy interconnects in devices like docking stations and GPU add-in cards.

Does the SN75DP130SSRGZT require external configuration to operate?

No - the SN75DP130SSRGZT supports autonomous operation via built-in link training: it monitors AUX channel commands and automatically adjusts input equalization and output voltage swing/pre-emphasis. However, full programmability is available via its I²C interface (SDA_CTL/SCL_CTL), allowing engineers to override defaults for custom tuning. The ADDR_EQ pin selects one of three I²C addresses, enabling multiple SN75DP130SSRGZT devices on the same bus.

How does the SN75DP130SSRGZT handle power management in battery-powered systems?

The SN75DP130SSRGZT incorporates multiple low-power states optimized for mobile use: Output Disable mode activates automatically when no DP signal is detected (reducing power to ~126 mW), Standby mode draws just ~2 mW when no sink is connected, and Shutdown mode consumes <4 mA. These modes are controlled via RSTN and EN pins, and the device's activity-detection circuitry eliminates need for host firmware intervention - extending battery life in notebooks and portable docks.

Can the SN75DP130SSRGZT be used in HDMI-only applications?

Yes - the SN75DP130SSRGZT supports HDMI 1.4b TMDS signaling up to 340 MHz (3.4 Gbps) via its DP++ Dual-Mode capability. In TMDS mode, it uses the same Main Link lanes with adjusted equalization and output drive strength, while leveraging dedicated SDA_DDC/SCL_DDC pins for DDC communication and AUX_SRC/AUX_SNK for sideband control. The CAD_SNK pin selects mode, and internal FET switch logic shorts AC coupling caps - enabling true glueless HDMI interface without external components.

What package and thermal characteristics define the SN75DP130SSRGZT?

The SN75DP130SSRGZT uses a 48-pin VQFN package (7 mm × 7 mm) with exposed thermal pad, specified for 0°C to 85°C operation. Its thermal metrics include RθJA = 35.1°C/W and RθJB = 11.7°C/W, enabling reliable operation in thermally constrained spaces like ultrabook docks. The exposed pad must be soldered to a solid thermal plane; TI recommends ≥6 thermal vias under the pad for optimal heat dissipation, especially in 4-lane configurations drawing up to 828 mW.