DS90C385MTDX - 85 MHz LVDS FPD-Link Transmitter | Texas Instruments
MPN: DS90C385MTDX ✓ ActiveDS90C385MTDX Overview
An LVDS FPD-Link transmitter is a mixed-signal interface IC that belongs to the broader low-voltage differential signaling and display-interface hierarchy. FPD-Link carries parallel pixel data over a low-voltage differential link, while LVDS provides common-mode noise rejection and low electromagnetic emissions. The DS90C385MTDX therefore occupies the transmitter stage between a parallel display controller and a differential panel interface.
Key features include 3.3 V operation, programmable LVDS output characteristics, and support for flat-panel display links operating at 85 MHz. The transmitter accepts 28 bits of LVCMOS/LVTTL data according to the family description, with the exact data mapping and configurable payload structure defined by the manufacturer datasheet. Differential signaling reduces the voltage swing required for high-speed transfer compared with single-ended parallel signaling.
The device architecture combines parallel CMOS inputs with a programmable differential output stage. Its primary design benefit is low-voltage data transmission, which helps control signal amplitude and supports cleaner interconnections between display timing controller circuitry and remote panel electronics. Users should preserve the recommended input and output termination, supply decoupling, and controlled-impedance routing used by the manufacturer reference design.
Typical uses include LCD and other flat-panel display interfaces, digital signage controllers, industrial human-machine-interface panels, medical displays, and embedded display subsystems requiring a scalable differential link. The same transmitter can serve both compact embedded panels and larger display assemblies when the selected panel interface and cable length satisfy the link budget.
The principal design consideration is signal integrity. Route each differential pair as a tightly coupled pair with continuous reference planes, avoid stubs, match propagation distance between lanes, and place termination exactly where the reference design specifies it. Verify power sequencing and output enable behavior in the system power architecture.
This page combines the exact catalog identity, package and interface facts, strict drop-in comparison data, and practical display-link design guidance. It helps engineers identify valid replacement options and plan layout, power, and signal-integrity requirements before releasing a flat-panel interface PCB.
Drop-in alternatives for DS90C385MTDX — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DS90C385MTDX (same form factor and footprint) — differing in Package, Product Type, Supply Voltage, Pin Count.
DS90C385AMT
✅ Drop-In📋 Reference alternative (not in catalog)
DS90C385MTDX Specifications
| Product Type | LVDS FPD-Link Transmitter |
| Supply Voltage | 3.3 V |
| Maximum Clock Frequency | 85 MHz |
| Logic Input Family | LVCMOS/LVTTL |
| Output Signal Type | Differential LVDS |
| Input Data Width | 28 bits |
| Direction | 1/0 Driver |
| Programmable Output | Programmable LVDS |
| Supported Display Link | Flat Panel Display (FPD) Link |
| Package | 56-TSSOP |
| Pin Count | 56 pins |
| Mounting Type | Surface Mount |
DS90C385MTDX 56-tssop Pin Configuration Guide
Pin configuration for DS90C385MTDX (56-tssop package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for DS90C385MTDX.
Refer to the datasheet for full pin configuration.
Typical Applications
DS90C385MTDX is suitable for 6 applications: LCD Flat-Panel Display Interfaces, Industrial Human-Machine Interfaces, Digital Signage Controllers, Medical Display Systems, Embedded Control Panels, Instrumentation Display Subsystems.
LCD Flat-Panel Display Interfaces
The DS90C385MTDX fits parallel-to-LVDS display links that operate at up to 85 MHz and use a 3.3 V interface supply. It accepts 28 bits of LVCMOS/LVTTL data and generates differential LVDS signals for the panel connection, reducing the voltage swing required for high-speed transfer. Place the transmitter close to the display timing controller when possible, route each differential pair as a controlled-impedance pair, and follow the reference termination arrangement. Confirm payload mapping, initialization timing, and panel-specific link limits before releasing the PCB.
Recommended
Industrial Human-Machine Interfaces
Industrial HMIs often connect a controller to a remote panel through a compact, high-speed display link. The DS90C385MTDX supports a 3.3 V supply and 85 MHz FPD-Link operation, allowing 28 parallel data bits to be transferred differentially. Differential signaling improves noise immunity compared with a long single-ended bus, which is useful near motors, relays, and switching power stages. The design must still verify temperature suitability, EMC performance, grounding, and the exact panel timing protocol before production release.
Recommended
Digital Signage Controllers
A digital-signage controller can use the DS90C385MTDX to convert parallel pixel and control data into low-voltage differential signals for a larger display assembly. Its 85 MHz operating point and programmable LVDS output suit FPD-Link panel architectures, while differential routing can reduce radiated emissions compared with a similarly timed single-ended interface. Engineers should maintain continuous reference planes, control pair impedance, and minimize connector and cable transitions. The host controller must also support the transmitter's exact payload and configuration sequence.
Recommended
Medical Display Systems
DS90C385MTDX is applicable to medical display electronics when the selected system uses a compatible 3.3 V, 85 MHz FPD-Link interface. Differential LVDS transmission can improve signal integrity across board-to-panel connections, helping preserve image data integrity near noisy medical equipment. However, suitability depends on operating-temperature limits, the medical system's risk controls, electromagnetic-immunity requirements, and panel validation. Treat the transmitter as one element of the complete display channel and verify timing, power sequencing, and fault behavior in the finished system.
Recommended
Embedded Control Panels
Embedded control panels benefit from a compact differential display connection when the panel controller provides parallel LVCMOS/LVTTL data. The DS90C385MTDX combines a 28-bit input interface with programmable LVDS outputs in a TSSOP package and supports an 85 MHz link. This arrangement can simplify cable signaling to a remote touchscreen or display module while keeping the logic-side interface compatible with common controller hardware. Confirm connector pinout, LVDS termination, panel protocol, and startup behavior against the manufacturer reference design before layout approval.
Recommended
Instrumentation Display Subsystems
Test and measurement instruments can use the DS90C385MTDX when they require a dedicated differential link to a display assembly. The 3.3 V transmitter operation and up-to-85 MHz interface support parallel controller data while reducing signal amplitude and susceptibility to common-mode disturbance. In high-precision equipment, isolate display switching from sensitive analog sections and use a continuous ground reference beneath the LVDS pairs. Validate the complete cable and connector path because transmitter specifications alone cannot guarantee eye opening at the panel.
Recommended
Recommended Products Summary
Engineering reference data for DS90C385MTDX — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DS90C385AMT |
|---|---|---|
| Package | 56-TSSOP | TSSOP |
| Brand | Texas Instruments | Texas Instruments |
| Product Type | Programmable LVDS FPD-Link Transmitter | Programmable LVDS FPD-Link Transmitter |
| Supply Voltage | 3.3 V | 3.3 V |
| Maximum Clock Frequency | 85 MHz | 85 MHz |
| Input Data Width | 28 bits | 28 bits |
| Input Logic | LVCMOS/LVTTL | LVCMOS/LVTTL |
| Output Signal | Differential LVDS | Differential LVDS |
| Direction | 1/0 Driver | 1/0 Driver |
| Pin Compatibility | Original DS90C385 family member | Documented as pin-to-pin compatible with DS90C385 |
Key Differentiators
- Documented family-level pin compatibility (vs DS90C385AMT)
- Original family identity with established 3.3 V operation (vs DS90C385AMT)
- Programmable differential output for parallel display data (vs DS90C385AMT)
Design Notes
Route every LVDS output as a tightly coupled differential pair over a continuous reference plane. Maintain matched spacing and length through the transmitter, connector, and panel interconnect, avoid test-point stubs, and place termination where the manufacturer reference design specifies it. Validate the complete path at 85 MHz because a compliant transmitter does not guarantee adequate eye margin after long cables, connectors, or poorly controlled impedance transitions.
Place the transmitter and its decoupling network close to the display timing controller, following the datasheet layout and reference-circuit guidance. Keep switching-regulator paths and high-current return paths away from the LVDS pairs, and use a quiet ground region beneath the interface. Confirm the exact pin count and exposed-pad arrangement before releasing artwork because catalog descriptions differ between 48-pin and 56-pin TSSOP records.
Do not treat DS90C385A as an unconditional electrical clone of DS90C385MTDX. Although it is documented as pin-to-pin compatible with the DS90C385 family and includes improvements, verify supply limits, configuration tables, initialization sequence, and output settings in the current datasheet. Also check that the replacement suffix has the intended package dimensions and ordering temperature range before approving a substitution.
Compliance Information
The available catalog information does not state the required compliance status. Request current material and compliance documentation through the Request a Quote form.
