Texas Instruments DS90CR216MTDX/NOPB

Overview

DS90CR216MTDX/NOPB from Texas Instruments is a 21-bit LVDS receiver IC for Channel Link serial interface systems, converting three LVDS data streams and one LVDS clock stream back into 21-bit CMOS/TTL parallel data. It operates at up to 66 MHz transmit clock frequency, delivers 1.386 Gbps aggregate throughput, supports +3.3V single-supply operation, and features rising-edge data strobe timing with 400 ps skew margin at 66 MHz - used in high-resolution flat-panel display interconnects and industrial camera interfaces.

For engineers reviewing the DS90CR216MTDX/NOPB datasheet, DS90CR216MTDX/NOPB pinout, DS90CR216MTDX/NOPB application, or DS90CR216MTDX/NOPB equivalent, this page provides verified technical context, real-world timing margins, TSSOP-48 package mapping, confirmed power-down behavior, and validated alternative receivers for display and imaging subsystems.

Technical Context

The DS90CR216MTDX/NOPB implements a PLL-based clock recovery architecture that locks to the embedded LVDS clock (TxCLK OUT±) and reconstructs synchronized RxCLK OUT with rising-edge strobe alignment. It accepts three differential LVDS data pairs (RxIN±) and one differential LVDS clock pair (RxCLK IN±), supporting 21-bit parallel TTL/CMOS output (RxOUT) with programmable power-down mode.

Its receiver input stage complies with TIA/EIA-644 LVDS standard, featuring 100 mV differential threshold, ±1.0 V common-mode range centered at +1.2 V, and 290 mV typical differential output swing on the transmitter side (DS90CR215). At 66 MHz, it maintains 400 ps skew margin (RSKM) to accommodate cable skew, inter-symbol interference, and ≤250 ps cycle-to-cycle jitter.

Key Specifications

Pinout & Package

DS90CR216MTDX/NOPB uses a 48-pin Low-Profile Thin Shrink Small Outline Package (TSSOP), package code DGG0048A, with exposed thermal pad not electrically connected. Pin assignments follow TI's standardized Channel Link receiver layout, optimized for differential signal routing and ground isolation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS90CR216MTDX/NOPB, DS90CR216MTD/NOPB offers identical functionality in tube packaging for flexibility in procurement and assembly, while SN65LVDS32 serves fundamentally different architectures lacking clock embedding and multi-lane deserialization - making it unsuitable as a drop-in replacement but viable for simpler LVDS point-to-point links.

Availability

DS90CR216MTDX/NOPB is available at Aetrix Electronics and suitable for industrial camera interfaces, medical imaging displays, automotive digital dashboards, and avionics HUD systems requiring stable component supply across extended product lifecycles.

Supply support for DS90CR216MTDX/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 DS90CR216MTDX/NOPB belongs to TI's Channel Link serializer/deserializer product line, designed specifically to replace wide parallel buses in display, imaging, and real-time video systems with compact, low-EMI LVDS links.

FAQ

What is the primary function of the DS90CR216MTDX/NOPB in a Channel Link system?

The DS90CR216MTDX/NOPB is a 21-bit LVDS deserializer that recovers an embedded clock from a DS90CR215 transmitter and converts three LVDS data streams back into parallel CMOS/TTL data. Its core function is to enable high-bandwidth, low-skew, low-EMI interconnects for display and imaging applications - directly replacing bulky parallel buses with compact differential cabling. DS90CR216MTDX/NOPB ensures timing integrity via PLL-based clock recovery and rising-edge strobe alignment.

Does the DS90CR216MTDX/NOPB require external components for PLL operation?

No, the DS90CR216MTDX/NOPB integrates a fully self-contained PLL that requires no external capacitors, resistors, or crystals. The PLL locks to the incoming LVDS clock (RxCLK IN±) and generates a clean, jitter-reduced RxCLK OUT for synchronizing deserialized data. This eliminates bill-of-materials overhead and layout complexity - a key design advantage confirmed in TI's SNLS129D datasheet. DS90CR216MTDX/NOPB achieves lock in ≤10 ms with no external tuning needed.

How does the DS90CR216MTDX/NOPB handle power-down mode, and what is its effect on outputs?

When the PWR DWN pin is asserted low, DS90CR216MTDX/NOPB enters power-down mode, reducing total supply current to less than 55 μA. Critically, all 21 RxOUT pins are actively driven low - unlike legacy 5V receivers that hold previous states. This behavior prevents floating bus conditions and simplifies system-level power sequencing. DS90CR216MTDX/NOPB resumes normal operation within 1 μs after PWR DWN is deasserted, with full clock lock re-established in ≤10 ms.

What is the maximum supported cable skew for reliable operation of the DS90CR216MTDX/NOPB at 66 MHz?

At 66 MHz, DS90CR216MTDX/NOPB guarantees a 400 ps receiver skew margin (RSKM), which defines the total allowable timing uncertainty budget - including inter-pair cable skew, inter-symbol interference, and cycle-to-cycle clock jitter (≤250 ps). This means the physical layer must limit differential-pair skew to ≤150 ps to maintain sufficient sampling margin. DS90CR216MTDX/NOPB achieves this using TIA/EIA-644-compliant inputs and precise internal strobe positioning, as verified in Figure 22 of the official datasheet.

Is the DS90CR216MTDX/NOPB pin-compatible with earlier 5V Channel Link receivers like the DS90CR214?

No, DS90CR216MTDX/NOPB is not pin-compatible with DS90CR214. While functionally backward compatible (i.e., interoperable with DS90CR213 transmitter when level-shifted), DS90CR216MTDX/NOPB uses a dedicated 48-pin TSSOP package with separate V_CC, LVDS V_CC, and PLL V_CC supplies - unlike the 40-pin SOIC package and shared supply architecture of DS90CR214. Direct PCB replacement is not possible; redesign is required for voltage domain separation and ground partitioning per DS90CR216MTDX/NOPB's layout guidelines.