Texas Instruments SN65LVDS86AQDGG

Overview

SN65LVDS86AQDGG from Texas Instruments is an automotive-grade LVDS deserializer IC that converts 4-channel high-speed differential data (A0P/A0M, A1P/A1M, A2P/A2M, CLKINP/CLKINM) into 21-bit LVTTL parallel output (D0–D20 + CLKOUT) for flat-panel display interfaces. It operates from a single 3.3-V supply, supports 31–68 MHz input clock range, delivers up to 178.5 MB/s throughput, and is qualified for −40°C to +125°C ambient operation in TSSOP-48 packaging.

For engineers reviewing the SN65LVDS86AQDGG datasheet, SN65LVDS86AQDGG pinout, SN65LVDS86AQDGG application, or SN65LVDS86AQDGG equivalent, this page provides verified technical context, automotive temperature-range validation, LVDS-to-LVTTL expansion architecture details, ESD tolerance (4 kV HBM), and real-world timing margins including t(RSKM) = 550–700 ps and setup/hold times of 5 ns each.

Technical Context

The SN65LVDS86AQDGG implements three 7-bit serial-in/parallel-out shift registers synchronized to a PLL-locked input clock (CLKIN), enabling 7× oversampling of LVDS data streams before parallel output at base clock rate. Its internal clock generator requires no external components and locks across 31–68 MHz while meeting ANSI EIA/TIA-644 LVDS input standards.

All 21 LVTTL outputs (D0–D20) are edge-aligned to the falling edge of CLKOUT, with precise timing control via SHTDN active-low shutdown that clears internal registers and reduces ICC to 280 µA. Input common-mode voltage range is 0.1 V to 2.4 V, and differential input threshold is ±100 mV, ensuring robust noise immunity in automotive display cabling environments.

Key Specifications

Pinout & Package

TSSOP-48 package (DGG), 12.6 mm × 6.2 mm × 1.2 mm max height, 0.5-mm pitch, RoHS-compliant NiPdAu lead finish, MSL Level-2-260°C-1 year.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LVDS deserializer applications.

Compared with SN65LVDS86AQDGG, SN65LVDS86A-Q1 adds formal AEC-Q100 compliance reporting but offers no electrical or thermal performance improvement, while SN75LVDS86ADGG sacrifices automotive temperature range for lower cost-making SN65LVDS86AQDGG the optimal balance of qualification, performance, and supply chain readiness for Tier 1 automotive designs.

Availability

SN65LVDS86AQDGG is available at Aetrix Electronics and suitable for automotive instrument clusters, infotainment head units, and industrial HMIs requiring stable component supply with guaranteed long-term availability and automotive-grade traceability.

Supply support for SN65LVDS86AQDGG 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 over 90 years of innovation in high-reliability electronics.

The SN65LVDS86AQDGG belongs to TI's FlatLink™ family of display interface ICs, designed specifically to solve high-speed, low-EMI video data transmission challenges in automotive and industrial display systems.

FAQ

What is the primary function of the SN65LVDS86AQDGG in a display interface system?

The SN65LVDS86AQDGG functions as a 3:21 LVDS deserializer that receives four differential LVDS signals (three data lanes plus one clock lane) and expands them into a 21-bit LVTTL parallel output bus. It enables high-speed, low-EMI transmission of display pixel and timing data from graphics controllers to LCD panels, and is explicitly designed for automotive applications requiring operation from −40°C to +125°C. The SN65LVDS86AQDGG integrates a jitter-tolerant PLL and requires no external components for clock recovery.

Does the SN65LVDS86AQDGG support both 18-bit and 24-bit RGB color formats?

Yes, the SN65LVDS86AQDGG supports both 18-bit and 24-bit RGB configurations through its 21-bit parallel output (D0–D20). In 18-bit mode, it maps RGB[5:0] per channel across D0–D17, with D18–D20 carrying HSYNC, VSYNC, and ENABLE. For 24-bit operation, unused inputs (e.g., Y3M/Y3P in Figure 11) remain open, and the SN65LVDS86AQDGG maintains full timing integrity-validated in TI's application diagrams for host-to-LCD panel links. Its 31–68 MHz input clock range accommodates both SXGA and UXGA timing requirements.

How does the SHTDN pin affect the behavior of the SN65LVDS86AQDGG?

The SHTDN pin on the SN65LVDS86AQDGG is an active-low shutdown control that, when pulled low, disables the LVDS receivers, halts PLL operation, and forces all 21 data outputs (D0–D20) and CLKOUT to logic low. This reduces quiescent current to 280 µA and clears internal shift registers. When released (high), the SN65LVDS86AQDGG resumes normal operation with a 1-ms enable time (ten) to achieve phase lock. This feature enables dynamic power management in battery-sensitive automotive displays without requiring external reset sequencing.

What are the key timing parameters that define reliable operation of the SN65LVDS86AQDGG?

Reliable operation of the SN65LVDS86AQDGG depends on three validated timing parameters: (1) input clock cycle time (tc) of 14.7–32.4 ns (31–68 MHz), (2) setup/hold times of 5 ns for D0–D20 relative to CLKOUT↓, and (3) receiver input skew margin (t_RSKM) of 550–700 ps. These values are measured under load (CL = 8 pF) and guarantee correct data capture across temperature and voltage extremes. The SN65LVDS86AQDGG's t_RSKM specification explicitly allocates margin for transmitter skew, interconnect mismatch, and input clock jitter up to 50 ps.

Can the SN65LVDS86AQDGG be used with non-TI LVDS transmitters?

Yes, the SN65LVDS86AQDGG is interoperable with any LVDS transmitter compliant with ANSI EIA/TIA-644, including non-TI sources such as Maxim Integrated or ON Semiconductor serializers. Its differential input thresholds (±100 mV), common-mode range (0.1–2.4 V), and 100-Ω termination requirement match industry-standard LVDS signaling. TI application notes confirm compatibility with SN75LVDS81/83/84/85 and third-party equivalents, provided the transmitter supports the same 3:21 expansion protocol and timing envelope defined in the SN65LVDS86AQDGG datasheet.