Texas Instruments DS92LV3242TVSX/NOPB

Overview

DS92LV3242TVSX/NOPB from Texas Instruments is a 32-bit Channel Link II deserializer IC that recovers parallel LVCMOS data and clock from embedded-clock LVDS serial streams. It supports dual-lane (20–50 MHz) or quad-lane (40–85 MHz) operation, delivers up to 2.72 Gbps payload, and operates across −40°C to +85°C. It is used in industrial machine vision systems to transmit HD video over CAT-5 cables up to 10 m.

For engineers reviewing the DS92LV3242TVSX/NOPB datasheet, DS92LV3242TVSX/NOPB pinout, DS92LV3242TVSX/NOPB application, or DS92LV3242TVSX/NOPB equivalent, key selection criteria include recovered clock jitter tolerance (0.25 UI), channel deskew capability (≤0.4 × tROCP), built-in AT-speed BIST, LVDS input termination (100 Ω), and lock-status signaling via LOCK pin.

Technical Context

The DS92LV3242TVSX/NOPB implements a CDR/PLL-based receiver architecture that locks to random data without external reference clocks or training sequences. It performs automatic channel deskew across up to four LVDS lanes using recovered clock alignment, tolerating inter-channel skew up to 0.4 × parallel clock period.

It integrates DC-balance decoding, data randomization, and on-chip 100 Ω LVDS input termination. The deserializer outputs 32-bit LVCMOS data synchronized to RxCLKOUT, with edge polarity selectable via R_FB, and supports TRI-STATE control via REN and PDB pins.

Key Specifications

Pinout & Package

DS92LV3242TVSX/NOPB uses a 64-pin TQFP (PAG) package with exposed thermal pad. Pin assignments are optimized for signal integrity: LVDS inputs grouped on one side, LVCMOS outputs on opposite side, and power/ground distributed across multiple pins to minimize noise coupling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS92LV3242TVSX/NOPB, DS92LV3241TVSX/NOPB serves the complementary transmitter function and cannot substitute in receiver applications, while MAX9249GTJ+T offers automotive-qualified GMSL but lacks Channel Link II interoperability, BIST, and 32-bit parallel output width.

Availability

DS92LV3242TVSX/NOPB is available at Aetrix Electronics and suitable for industrial imaging, security surveillance, medical equipment, and automated test equipment requiring stable component supply and long-term production continuity.

Supply support for DS92LV3242TVSX/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 for industrial, automotive, and communications markets.

DS92LV3242TVSX/NOPB belongs to TI's Channel Link II SerDes product line, designed specifically for high-reliability, long-distance parallel-to-serial conversion in machine vision, medical imaging, and surveillance systems where deterministic latency and skew resilience are critical.

FAQ

What is the maximum supported cable length for DS92LV3242TVSX/NOPB in quad-mode operation?

The DS92LV3242TVSX/NOPB supports up to 10 m of CAT-5 cable at 2.72 Gbps (85 MHz quad mode), as validated in TI's SNLS314D datasheet. This assumes standard AC-coupled point-to-point interconnect with proper termination and controlled impedance. Longer distances require signal integrity analysis including pre-emphasis on the serializer side (DS92LV3241TVSX/NOPB).

Does DS92LV3242TVSX/NOPB require an external reference clock to achieve lock?

No, DS92LV3242TVSX/NOPB does not require an external reference clock. Its CDR/PLL architecture locks directly to the embedded clock within the incoming LVDS data stream, enabling true "plug-and-lock" operation without training patterns or sync characters - a core feature confirmed in the Functional Description section of SNLS314D.

How does the LOCK pin behave during loss-of-signal events on DS92LV3242TVSX/NOPB?

When DS92LV3242TVSX/NOPB loses lock - e.g., due to interrupted LVDS input - the LOCK pin transitions LOW, and RxOUT[31:0] and RxCLKOUT enter TRI-STATE. The device automatically attempts resynchronization on the master channel (RxIN0), re-establishing LOCK only after full CDR/PLL reacquisition, as documented in the Resynchronization section of SNLS314D.

Can DS92LV3242TVSX/NOPB operate with 1.8 V LVCMOS I/O levels?

Yes, DS92LV3242TVSX/NOPB supports 1.8 V LVCMOS I/O via its IOVDD pin, which accepts 1.71–1.89 V. When configured this way, RxOUT[31:0] and RxCLKOUT meet 1.8 V logic thresholds (VIH = 0.65 × IOVDD, VIL = 0.35 × IOVDD), enabling direct interfacing with low-voltage FPGAs or ASICs without level-shifting.

What is the purpose of the R_FB pin on DS92LV3242TVSX/NOPB?

The R_FB pin on DS92LV3242TVSX/NOPB selects the clock edge used to latch RxOUT[31:0] data: R_FB = HIGH configures rising-edge strobing of RxCLKOUT, while R_FB = LOW configures falling-edge strobing. This allows precise timing alignment with downstream logic, matching the serializer's TxCLKIN edge setting (DS92LV3241TVSX/NOPB) for optimal setup/hold margins.