Texas Instruments SN65LVDS86AQDGGRQ1

Overview

SN65LVDS86AQDGGRQ1 from Texas Instruments is an automotive-qualified FlatLink™ LVDS receiver IC that converts 4-channel LVDS serial input (3 data + 1 clock) into 21-bit LVTTL parallel output at up to 178.5 MB/s throughput, operates from a single 3.3-V supply, supports 31–68 MHz PLL input frequency range, and delivers valid data on the falling edge of CLKOUT for flat-panel display interface applications.

For engineers reviewing the SN65LVDS86AQDGGRQ1 datasheet, SN65LVDS86AQDGGRQ1 pinout, SN65LVDS86AQDGGRQ1 application, or SN65LVDS86AQDGGRQ1 equivalent, key selection considerations include its 21-bit LVTTL output bus timing alignment, automotive-grade –40°C to 125°C operation, integrated PLL with no external components, differential input compliance with ANSI EIA/TIA-644, and shutdown current below 1 mW.

Technical Context

The SN65LVDS86AQDGGRQ1 implements three 7-bit serial-in/parallel-out shift registers synchronized to a recovered LVDS clock, enabling 7× oversampling of the incoming LVDS data stream before parallel output at the base CLKIN rate. Its internal clock generator locks to differential CLKINP/CLKINM inputs across 31–68 MHz without external loop-filter components.

Input LVDS receivers meet ANSI EIA/TIA-644 specifications with ±100-mV differential threshold and 0.1–0.6-V differential input voltage tolerance; output drivers deliver LVTTL-compatible VOH ≥2.4 V and VOL ≤0.4 V under 4-mA load, with 3-ns data transition time and 5-ns setup/hold timing relative to CLKOUT↓.

Key Specifications

Pinout & Package

TSSOP-48 package (DGG), 12.6 mm × 6.2 mm × 1.2 mm max height, 0.5-mm lead pitch, RoHS-compliant NiPdAu 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 SN65LVDS86A and DS90C364MTDX, the SN65LVDS86AQDGGRQ1 uniquely combines automotive qualification, integrated PLL clock recovery, and pin-compatible drop-in replacement for SN75LVDS86-enabling faster design reuse, reduced EMI, and guaranteed operation across full automotive temperature range without external components.

Availability

SN65LVDS86AQDGGRQ1 is available at Aetrix Electronics and suitable for automotive instrument clusters, infotainment displays, head-up displays, and industrial panel PCs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN65LVDS86AQDGGRQ1 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 experience in automotive electronics and high-reliability interface solutions.

The SN65LVDS86AQDGGRQ1 belongs to TI's FlatLink™ family of high-speed interface ICs, designed specifically to simplify high-resolution video transmission in automotive and industrial displays by replacing bulky parallel buses with robust, low-EMI LVDS links.

FAQ

What is the primary function of the SN65LVDS86AQDGGRQ1 in a display interface system?

The SN65LVDS86AQDGGRQ1 functions as an LVDS-to-LVTTL deserializer that receives 4-channel LVDS input (three data pairs plus one clock pair) and expands it into a 21-bit parallel LVTTL output bus synchronized to CLKOUT. It is used to transmit high-speed video data from graphics controllers to display timing controllers in automotive and industrial flat-panel displays. The SN65LVDS86AQDGGRQ1 performs this conversion with integrated PLL clock recovery, eliminating the need for external oscillators or loop filters.

Does the SN65LVDS86AQDGGRQ1 require external components for PLL operation?

No, the SN65LVDS86AQDGGRQ1 does not require external components for PLL operation. Its internal PLL includes a fully integrated VCO and loop filter, enabling lock to input clock frequencies from 31 MHz to 68 MHz without any external capacitors or resistors. This simplifies PCB layout, improves reliability, and reduces BOM count. The SN65LVDS86AQDGGRQ1 achieves stable clock recovery solely from the differential CLKINP/CLKINM inputs and internal circuitry.

What are the absolute maximum ratings for supply voltage and operating temperature of the SN65LVDS86AQDGGRQ1?

The SN65LVDS86AQDGGRQ1 has an absolute maximum supply voltage rating of –0.5 V to 4.0 V on VCC pins, and it is characterized for continuous operation across –40°C to 125°C ambient temperature. These ratings align with AEC-Q100 Grade 2 requirements, making the SN65LVDS86AQDGGRQ1 suitable for under-hood and dashboard-mounted automotive electronics where thermal stress is significant.

How does the SN65LVDS86AQDGGRQ1 handle power-down or standby modes?

Power-down is controlled via the active-low SHTDN pin: asserting SHTDN low disables the LVDS receivers, clears all internal shift registers to logic low, and reduces total supply current to less than 1 mW. Release of SHTDN initiates PLL re-lock within 1 ms. This feature allows dynamic power gating in display systems during blanking intervals or sleep states. The SN65LVDS86AQDGGRQ1 maintains full functionality and timing integrity upon wake-up without requiring system-level reset.

Can the SN65LVDS86AQDGGRQ1 be used with non-TI LVDS transmitters such as the DS90C365 or MAX9205?

Yes, the SN65LVDS86AQDGGRQ1 can interface with non-TI LVDS transmitters including DS90C365 and MAX9205, provided they comply with ANSI EIA/TIA-644 differential signaling standards and operate within the 31–68 MHz input clock range. Its differential input thresholds (±100 mV) and 0.1–0.6-V VID tolerance ensure interoperability. However, timing alignment and skew margins must be verified per application; the SN65LVDS86AQDGGRQ1 specifies 550–700 ps receiver input skew margin for robust operation.