Texas Instruments DS90CR482VS/NOPB

Overview

DS90CR482VS/NOPB from Texas Instruments is a 48-bit LVDS deserializer IC that converts eight serialized LVDS data streams and one LVDS clock into parallel LVCMOS/TTL data outputs. It operates at input clock frequencies from 65 MHz to 112 MHz, delivers up to 5.376 Gbits/sec throughput, supports cable deskew of ±1 LVDS bit time (up to 80 MHz), and features DC balance encoding and pre-emphasis compatibility for long-cable applications in industrial displays and embedded video interfaces.

For engineers reviewing the DS90CR482VS/NOPB datasheet, DS90CR482VS/NOPB pinout, DS90CR482VS/NOPB application, or DS90CR482VS/NOPB equivalent, key selection criteria include deskew capability under DC-balance mode, receiver supply current (200–280 mA), LVDS input threshold (±100 mV), CMOS/TTL output transition times (≤2.0 ns), and compatibility with DS90CR481 transmitter in point-to-point Channel Link systems.

Technical Context

The DS90CR482VS/NOPB implements a PLL-based LVDS receiver architecture synchronized to an incoming LVDS clock, reconstructing 48-bit parallel data with propagation latency of 3×T_CLK+4.0 ns to 3×T_CLK+6.5 ns. It supports two operational modes: standard mode (BAL = low) and DC-balance mode (BAL = high), where the latter enables cycle-to-cycle DC balancing and activates the DESKEW function.

Deskew operation requires coordination with the DS90CR481 transmitter via the DS_OPT control signal and is limited to clock rates ≤80 MHz; it adjusts sampling strobes per channel in 0.3 T_BIT steps across ±1 T_BIT. The receiver rejects cycle-to-cycle jitter <100 ps at its LVDS inputs and maintains functional output timing even with inter-pair skew up to ±1 bit time when deskew is enabled.

Key Specifications

Pinout & Package

DS90CR482VS/NOPB is housed in a 100-pin TQFP (Thin Quad Flat Package) with 0.5 mm pitch, thermally enhanced for industrial temperature range (−10°C to +70°C). Pin layout follows flow-through routing for minimal PCB trace length and signal integrity preservation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS90CF564MTD and SN65LVDS32PW, DS90CR482VS/NOPB uniquely integrates 48-bit deserialization, ±1-bit-time deskew, and DC balance in a single 100-TQFP package-enabling direct replacement of wide parallel buses in space-constrained, long-cable industrial video systems without redesigning signal routing or adding external logic.

Availability

DS90CR482VS/NOPB is available at Aetrix Electronics and suitable for industrial display interfaces, medical imaging backplanes, automotive digital clusters, and automated test equipment requiring stable component supply and long-term manufacturability.

Supply support for DS90CR482VS/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 specializing in analog, embedded processing, and connectivity technologies, with decades of experience in high-speed interface solutions.

DS90CR482VS/NOPB belongs to TI's Channel Link family of LVDS SER/DES chipsets, designed specifically to replace wide parallel TTL/CMOS buses in noise-sensitive, space-constrained, and long-cable applications such as flat-panel displays and industrial vision systems.

FAQ

What is the maximum cable length supported by DS90CR482VS/NOPB?

DS90CR482VS/NOPB supports cable lengths exceeding 5 meters when used with the DS90CR481 transmitter, DC balance enabled, and appropriate pre-emphasis (e.g., 1.5 V PRE voltage at 112 MHz). Performance depends on cable type, termination, and clock frequency-verified up to 7 meters with standard shielded twisted-pair at 66 MHz per TI characterization data.

Does DS90CR482VS/NOPB require external termination resistors?

Yes, DS90CR482VS/NOPB requires a 100 Ω differential termination resistor placed as close as possible to its LVDS input pins (RxIN0–RxIN7 and RxCLKIN). This resistor matches typical twisted-pair cable impedance, suppresses reflections, and completes the LVDS current loop-omitting it causes signal integrity failure and bit errors.

Can DS90CR482VS/NOPB operate without the DS90CR481 transmitter?

No, DS90CR482VS/NOPB is designed exclusively for use with the DS90CR481 transmitter in a point-to-point Channel Link configuration. It relies on the specific LVDS encoding, clock embedding, and deskew training protocol defined for this chipset-interfacing with non-matching serializers will result in failed lock, data corruption, or no output.

How does the DESKEW function calibrate in DS90CR482VS/NOPB?

DESKEW calibration in DS90CR482VS/NOPB is initiated by pulling the DESKEW pin high and asserting DS_OPT low on the DS90CR481 transmitter for ≥4 clock cycles. The receiver then adjusts each data channel's sampling strobe in 0.3 T_BIT increments across ±1 T_BIT, using built-in training patterns-outputs remain low until calibration completes successfully.

Is DS90CR482VS/NOPB compatible with 5 V logic systems?

DS90CR482VS/NOPB itself operates from a 3.3 V supply and outputs 3.3 V LVCMOS/TTL signals. However, its control inputs (DESKEW, BAL, PD) are 5 V tolerant, allowing direct connection to 5 V microcontrollers without level shifters-ensuring seamless integration into mixed-voltage industrial control systems.