Texas Instruments DS90C124IVSX/NOPB

Overview

DS90C124IVSX/NOPB from Texas Instruments is a 24-bit FPD-Link II deserializer IC for automotive display interfaces, supporting 5–35 MHz embedded clock operation, DC-balanced AC-coupled serial link reception, and LVCMOS parallel output with ±8-kV HBM ESD tolerance. It recovers clock and data from an LVDS serial stream (e.g., from DS90C241) and delivers synchronized 24-bit parallel video/data to display timing controllers in instrument clusters or HUDs.

For engineers reviewing the DS90C124IVSX/NOPB datasheet, DS90C124IVSX/NOPB pinout, DS90C124IVSX/NOPB application, or DS90C124IVSX/NOPB equivalent, key selection criteria include its CDR-based lock detection (LOCK pin), tri-state control via RPWDNB, user-selectable RCLK edge (RRFB), and compliance with AEC-Q100 Grade 2 (−40°C to 105°C).

Technical Context

The DS90C124IVSX/NOPB implements full clock and data recovery (CDR) without requiring an external reference clock, using an internal PLL locked to the incoming LVDS serial stream (RIN+/RIN−). Its DC-balance decode engine enables AC-coupled interconnects up to 10 meters with pre-emphasis support on the companion serializer.

It outputs three groups of LVCMOS parallel data (ROUT[23:0]) with balanced setup/hold timing relative to RCLK, supports progressive turn-on (PTO) outputs to reduce EMI, and provides LOCK status flagging for real-time data integrity monitoring in live-pluggable automotive systems.

Key Specifications

Pinout & Package

DS90C124IVSX/NOPB uses a 48-pin TQFP package (7.00 mm × 7.00 mm, 0.5 mm pitch) with thermally enhanced thermal pad and strict analog/digital power/ground separation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS90C124IVSX/NOPB, DS90UB925QSQ/NOPB offers higher resolution support and embedded control but requires PCB redesign and firmware changes, while MAX9271GTJ+T delivers superior cable equalization at the cost of non-drop-in replacement and different protocol stack.

Availability

DS90C124IVSX/NOPB is available at Aetrix Electronics and suitable for automotive instrument clusters, heads-up displays, and remote camera systems requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.

Supply support for DS90C124IVSX/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 automotive electronics, with decades of experience in high-reliability interface solutions.

The DS90C124IVSX/NOPB belongs to TI's FPD-Link II chipset family, designed specifically for cost-optimized, low-latency video transport in automotive cockpit displays where EMI resilience and AEC-Q100 compliance are mandatory.

FAQ

What is the primary function of DS90C124IVSX/NOPB in an automotive display system?

The DS90C124IVSX/NOPB functions as a 24-bit FPD-Link II deserializer that recovers clock and data from an LVDS serial stream (e.g., from DS90C241) and outputs synchronized LVCMOS parallel video signals (ROUT[23:0] and RCLK) to display timing controllers. It enables high-fidelity, low-EMI video transmission over a single twisted pair in instrument clusters and HUDs, with LOCK flag assurance of stable PLL lock before data capture.

Does DS90C124IVSX/NOPB require an external reference clock?

No, DS90C124IVSX/NOPB does not require an external reference clock. It implements embedded clock and data recovery (CDR) using an internal PLL locked directly to the incoming LVDS serial data stream on RIN+/RIN− pins. This eliminates clock distribution complexity and reduces system-level jitter sensitivity in automotive display links.

How does the LOCK pin on DS90C124IVSX/NOPB improve system reliability?

The LOCK pin on DS90C124IVSX/NOPB provides a real-time hardware indication of PLL lock status: HIGH when the receiver PLL is stably locked to the incoming serial stream, LOW otherwise. This allows the display controller to gate data capture and avoid reading invalid or misaligned pixel data during lock acquisition or loss-critical for functional safety in automotive instrument clusters.

Can DS90C124IVSX/NOPB drive standard LVCMOS loads without level-shifting?

Yes, DS90C124IVSX/NOPB outputs LVCMOS-compliant signals (ROUT[23:0], RCLK, LOCK) with VOH ≥2.3 V and VOL ≤0.5 V at 4 mA load, fully compatible with 3.3 V logic families. Its PTO (Progressive Turn-On) architecture further minimizes SSO noise, enabling direct connection to timing controllers or FPGAs without external buffers or level shifters in most automotive display designs.

What is the significance of RRFB and RPWDNB pins on DS90C124IVSX/NOPB?

The RRFB pin selects whether RCLK strobes ROUT[23:0] on the rising (RRFB = H) or falling (RRFB = L) edge, enabling interoperability with diverse timing controllers. The RPWDNB pin is an active-low power-down control: when asserted LOW, it places all outputs in TRI-STATE and shuts down the PLL, reducing supply current to 50 µA-essential for low-power modes in always-on automotive displays.