Texas Instruments DS90CR486VS/NOPB

Overview

DS90CR486VS/NOPB from Texas Instruments is a 48-bit Channel Link deserializer IC that converts eight LVDS data streams and one LVDS clock into 48-bit LVCMOS/LVTTL parallel output, supporting up to 133 MHz input clock (6.384 Gbps throughput) for high-speed point-to-point interconnects in display and imaging systems.

For engineers reviewing the DS90CR486VS/NOPB datasheet, DS90CR486VS/NOPB pinout, DS90CR486VS/NOPB application, or DS90CR486VS/NOPB equivalent, key selection considerations include cable deskew capability, DC balance mode support, 100-pin TQFP package compatibility, LVDS receiver input range (0–2.4 V), and backward compatibility with DS90CR481/483/485 serializers.

Technical Context

The DS90CR486VS/NOPB implements a PLL-based clock recovery architecture to reconstruct a clean 133 MHz LVCMOS clock (RxCLKOUT) from the incoming LVDS clock pair, with phase lock time of 10 ms and propagation latency of 2×TCIP+5 to 2×TCIP+15 ns. It supports dual-mode operation: DC balance enabled (BAL = High) adds cycle-to-cycle data inversion for ISI reduction, while disabled (BAL = Low) uses direct mapping per Figure 8.

Cable deskew is performed via internal sampling strobe adjustment over ±150 ps at 133 MHz, initiated by asserting DESKEW = High and CON1 = High; initialization requires 4096 clock cycles post-PLL lock and forces outputs low during calibration. Power-down mode (PD = Low) reduces supply current to 60–110 µA and holds all 48 outputs low.

Key Specifications

Pinout & Package

DS90CR486VS/NOPB is housed in a 100-pin TQFP package (TI package code NEZ0100A), with exposed thermal pad, flow-through pinout for minimal PCB trace length and signal integrity. Pin assignments are validated per TI SNLS149C datasheet Section 9 (Pin Descriptions) and Figure 11 (Top View).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS90CR484VS/NOPB, DS90CR486VS/NOPB extends clock range to 133 MHz and adds guaranteed deskew in both DC-balance modes; versus SN65LVDS32, it delivers full Channel Link protocol handling including clock recovery, data deskew, and DC balancing-making it the sole viable option for 48-bit high-speed video interconnects.

Availability

DS90CR486VS/NOPB is available at Aetrix Electronics and suitable for display interface backplanes, medical imaging data links, automotive digital clusters, and test equipment video capture requiring stable component supply and long-term production continuity.

Supply support for DS90CR486VS/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 expertise in high-speed interface solutions.

The DS90CR486VS/NOPB belongs to TI's Channel Link family, designed specifically to solve EMI and interconnect size challenges in high-throughput point-to-point applications such as flat-panel displays and imaging systems.

FAQ

What is the maximum supported input clock frequency for DS90CR486VS/NOPB?

The DS90CR486VS/NOPB supports an input clock frequency range of 66 MHz to 133 MHz, delivering up to 6.384 Gbps aggregate throughput. At 133 MHz, it achieves 798 MB/s parallel data transfer, validated per TI SNLS149C datasheet Section 7 (Receiver Switching Characteristics). Operation above 133 MHz is not specified and may result in timing violations or loss of lock.

Does DS90CR486VS/NOPB support cable deskew with DC balance disabled?

Yes, DS90CR486VS/NOPB supports cable deskew in both DC balance enabled (BAL = High) and disabled (BAL = Low) modes, unlike DS90CR484 which restricts deskew to DC-balance-on configurations. Deskew initialization requires DESKEW and CON1 pins tied high, and completes in 4096 clock cycles after PLL lock, providing ±150 ps adjustment range at 133 MHz.

What are the power supply requirements for DS90CR486VS/NOPB?

DS90CR486VS/NOPB requires three independent +3.3 V supplies: VCC (6 pins) for LVCMOS/LVTTL outputs and digital logic, PLLVCC (1 pin) for the phase-locked loop, and LVDSVCC (2 pins) for LVDS receiver inputs. Each domain needs local 0.1 µF ceramic decoupling; PLLVCC and LVDSVCC also require 4.7–10 µF bulk capacitance per TI layout guidelines.

Is DS90CR486VS/NOPB pin-compatible with DS90CR484VS/NOPB?

Yes, DS90CR486VS/NOPB is footprint-compatible with DS90CR484VS/NOPB in the 100-pin TQFP (NEZ0100A) package and shares identical pin functions and assignments per TI documentation. This allows direct PCB-level replacement in existing designs, though DS90CR486VS/NOPB adds higher clock support (133 MHz vs. 112 MHz) and enhanced deskew functionality.

How does the BAL pin affect data mapping in DS90CR486VS/NOPB?

The BAL pin determines whether DS90CR486VS/NOPB applies DC balance encoding: when BAL = High, data words are selectively inverted per running disparity algorithm (Figure 9), altering bit mapping to reduce DC bias; when BAL = Low, data passes through unchanged (Figure 8). The physical RxOUT0–47 pin assignments remain identical in both modes-the difference is in the logical data content, not pin routing.