Texas Instruments DS92LV3241TVSX/NOPB

Overview

DS92LV3241TVSX/NOPB from Texas Instruments is a 32-bit Channel Link II serializer IC that converts parallel LVCMOS data (32-bit, 20–85 MHz) into embedded-clock LVDS serial streams for high-integrity transmission over CAT-5 or FR-4 interconnects. It supports dual-lane (20–50 MHz) or quad-lane (40–85 MHz) operation, delivers up to 2.72 Gbps payload, embeds clock without external reference, and integrates DC-balanced encoding and transmit pre-emphasis for robust long-cable video transport in industrial imaging systems.

For engineers reviewing the DS92LV3241TVSX/NOPB datasheet, DS92LV3241TVSX/NOPB pinout, DS92LV3241TVSX/NOPB application, or DS92LV3241TVSX/NOPB equivalent, key selection criteria include its selectable lane mode, embedded-clock lock-to-random-data capability, integrated 100Ω LVDS termination, AT-speed BIST support, and −40°C to +85°C industrial temperature operation.

Technical Context

The DS92LV3241TVSX/NOPB implements a parallel-to-serial conversion architecture with on-chip PLL-based clock embedding and scrambler/DC-balance encoder. Its dual/quad mode selection (via MODE pin) configures internal data mapping: dual mode uses full TxCLKIN frequency across two lanes (20–50 MHz), while quad mode divides TxCLKIN by two and distributes bits across four lanes (40–85 MHz).

Signal integrity is maintained via programmable pre-emphasis (PRE pin), selectable output swing (VSEL), and built-in 100Ω differential termination. The CDR-free receiver lock mechanism enables plug-and-lock operation without training sequences, and channel deskew tolerance reaches 0.4×tCIP for inter-pair skew compensation across lossy media.

Key Specifications

Pinout & Package

DS92LV3241TVSX/NOPB is housed in a 64-pin TQFP (PAG package) with exposed thermal pad. Pin assignments are validated per TI SNLS314D Rev. April 2013 datasheet, including dedicated LVCMOS data inputs (TxIN[31:0]), control pins (MODE, PDB, R_FB, PRE, VSEL, BISTEN), LVDS outputs (TxOUT[3:0]±), and segregated power domains (VDD, VSS, VDDPLL, VSSPLL, VDDA, VSSA, IOVDD, IOVSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS92LV3241TVSX/NOPB, DS92LV3221TVSX/NOPB offers pin-compatible downsizing for bandwidth-constrained designs, while MAX9249GTJ+T provides automotive-qualified reach and safety features at the cost of clock dependency and non-interchangeable layout.

Availability

DS92LV3241TVSX/NOPB is available at Aetrix Electronics and suitable for industrial imaging, security camera infrastructure, and medical video transport requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.

Supply support for DS92LV3241TVSX/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 delivering analog, embedded processing, and connectivity solutions with deep expertise in high-speed interface ICs and industrial-grade reliability.

The DS92LV3241TVSX/NOPB belongs to TI's Channel Link II SER/DES family, engineered specifically for noise-immune, long-distance parallel-to-serial conversion in machine vision, surveillance, and medical imaging systems where skew, EMI, and cable cost are critical constraints.

FAQ

What is the maximum supported data payload rate for DS92LV3241TVSX/NOPB?

The DS92LV3241TVSX/NOPB achieves a maximum data payload rate of 2.72 Gbps in quad-lane mode at 85 MHz (85 MHz × 32-bit). This is confirmed in the SNLS314D datasheet Section 1, Features, and validated under recommended operating conditions with checkerboard and random patterns. The rate scales linearly with clock frequency and is constrained by the 40–85 MHz quad-mode range.

Does DS92LV3241TVSX/NOPB require an external reference clock?

No, DS92LV3241TVSX/NOPB does not require an external reference clock. It embeds clock information directly into the LVDS serial stream and locks to random data patterns without training sequences - a core feature documented in the Functional Description section of SNLS314D. This enables true "plug-and-lock" operation and eliminates clock distribution complexity.

How is lane configuration selected on DS92LV3241TVSX/NOPB?

Lane configuration on DS92LV3241TVSX/NOPB is selected via the MODE pin (Pin 15): logic high enables quad-lane mode (40–85 MHz), and logic low (default) enables dual-lane mode (20–50 MHz). This is explicitly defined in the Pin Descriptions table (Page 4) and Function Description (Page 16) of SNLS314D, with corresponding timing and payload specifications per mode.

What is the purpose of the BISTEN pin on DS92LV3241TVSX/NOPB?

The BISTEN pin (Pin 13) enables the built-in AT-speed BIST function on DS92LV3241TVSX/NOPB. When driven high, it activates self-test mode to validate end-to-end link integrity without external equipment; low (default) disables BIST and enables normal operation. This capability is detailed in the Pin Descriptions (Page 4) and Functional Description (Page 16) of SNLS314D.

Can DS92LV3241TVSX/NOPB operate with both 1.8V and 3.3V LVCMOS I/O interfaces?

Yes, DS92LV3241TVSX/NOPB supports both 1.8V and 3.3V LVCMOS parallel interfaces via the IOVDD supply pin (Pin 49). Electrical characteristics specify VIH/VIL thresholds for both ranges: 1.71–1.89 V for 1.8V operation and 3.135–3.465 V for 3.3V operation. This dual-voltage flexibility is confirmed in the Recommended Operating Conditions (Page 7) and LVCMOS DC Specifications (Page 8) of SNLS314D.