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Texas Instruments LMH0024MAX/NOPB
- Part No.:
- LMH0024MAX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH0024MAX/NOPB.pdf
- Description:
- IC INTERFACE SPECIALIZED 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,217
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Product details
Overview
LMH0024MAX/NOPB from Texas Instruments is a 3.3V SMPTE 259M/344M adaptive cable equalizer IC for serial digital video interfaces, supporting data rates from 125 Mbps to 540 Mbps, equalizing up to 350 m of Belden 1694A coaxial cable at 270 Mbps, with differential 50Ω outputs and integrated cable length indicator (CLI) functionality.
For engineers reviewing the LMH0024MAX/NOPB datasheet, LMH0024MAX/NOPB pinout, LMH0024MAX/NOPB application, or LMH0024MAX/NOPB equivalent, this device serves as a drop-in footprint-compatible replacement for GS9064 in SDI receiver front-ends requiring adaptive equalization, DC restoration, manual mute control, and real-time cable-length feedback under industrial temperature conditions.
Technical Context
The LMH0024MAX/NOPB implements a multi-stage adaptive filter controlled by an Automatic Equalization Control (AEC) loop, where external 1 µF capacitor across AEC+/AEC− sets loop response. It includes self-biasing DC restoration to handle pathological SMPTE RP 178 signals and supports both single-ended and differential AC-coupled inputs.
Its output driver delivers 750 mVP–P differential swing into 50Ω loads, with CLI voltage inversely proportional to cable length (2.5 V at 0 m → 2.0 V at max length), and MUTE pin enables hardware-level output disable without signal interruption during power-up or fault recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate Range | 125–540 Mbps: Covers full SMPTE 259M (270 Mbps) and SMPTE 344M (540 Mbps) standards, plus DVB-ASI at 270 Mbps. |
| Max Equalized Cable | 350 m Belden 1694A @ 270 Mbps: Enables long-haul SD-SDI transmission over standard broadcast coax without repeaters. |
| Output Swing | 750 mVP–P differential: Meets SMPTE 259M output amplitude requirements into 50Ω termination for reliable clock/data recovery. |
| Supply Current | 60–77 mA @ 3.3V: Decreases with increasing cable length-enables dynamic power optimization in variable-link environments. |
| Operating Temp | −40°C to +85°C: Qualified for industrial-grade broadcast equipment, OB vans, and field-deployable video infrastructure. |
| Input Return Loss | 15–20 dB (5 MHz–1.5 GHz): Ensures minimal signal reflection on PCB traces and connectors when used with SDI evaluation board layout. |
| CLI Voltage Range | 2.0–2.5 V: Provides monotonic analog feedback for microcontroller-based cable diagnostics or auto-gain calibration. |
Pinout & Package
LMH0024MAX/NOPB is housed in a 16-pin SOIC package (NS Package Number M16A), with exposed pad not present; thermal resistance θJA = 115°C/W. Ground pins (VEE) are distributed across Pins 3, 6, 11, and 14 for low-inductance return path; dual VCC (Pins 2, 15) support supply decoupling near power entry points.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CLI) | Cable Length Indicator output | Analog voltage (2.0–2.5 V) inversely scaled to equalized cable length-used for diagnostics or adaptive gain tuning. |
| 4,5 (SDI, SDI) | Differential serial data input | Accepts AC-coupled SMPTE-compliant signals; supports single-ended drive via Pin 4 only with Pin 5 grounded. |
| 7,8 (AEC+, AEC−) | AEC loop filter interface | Connect external 1 µF capacitor to set adaptive loop bandwidth-critical for stable convergence across cable lengths. |
| 9 (BYPASS) | Equalization/DC restoration disable | High logic disables all adaptive functions-bypasses equalizer and DC restorer for low-rate legacy signal paths. |
| 12,13 (SDO, SDO) | Differential serial data output | 50Ω-terminated, 750 mVP–P differential outputs-directly drives next-stage CDR or FPGA transceiver without external termination. |
| 16 (MUTE) | Output muting control | High = outputs forced to high-Z; low = normal operation-enables glitch-free hot-swap or fault isolation in multi-channel systems. |
Key Features
| Feature | Design Value |
|---|---|
| SMPTE 259M/344M compliance | Fully meets jitter, amplitude, and rise/fall time specs per SMPTE standards-certified for broadcast-grade SD/HD-SDI infrastructure. |
| Adaptive AEC loop | Self-tuning filter gain/bandwidth via external 1 µF capacitor-eliminates manual tuning and maintains eye opening across varying cable types and lengths. |
| DC restoration with bypass | Handles pathological SMPTE RP 178 patterns (e.g., color bar) without baseline wander; bypass option preserves low-frequency content at <125 Mbps. |
| Footprint compatibility | Pin-to-pin and land-pattern compatible with LMH0034 and Gennum GS9064-enables drop-in upgrade in existing SDI receiver designs. |
| Industrial temperature range | Validated operation from −40°C to +85°C-supports deployment in uncontrolled environments like outdoor broadcast trucks and remote camera heads. |
Applications
| Broadcast Camera Interface | SDI Distribution Amplifier |
|---|---|
|
Use Scenario: Transmitting uncompressed HD-SDI video from a remote camera head over 200+ meters of coaxial cable to a production truck. IC Role / Device Role / Timing Role: Adaptive equalizer restoring high-frequency loss and DC baseline in received serial data stream prior to CDR stage. Use Value: Maintains >20 dB eye opening at 540 Mbps after 250 m Belden 1694A-enabling zero-frame-loss transmission without repeaters. |
Use Scenario: Fan-out of one SDI source to eight downstream monitors or recorders in a broadcast control room. IC Role / Device Role / Timing Role: Input equalizer stage in each distribution path, compensating for impedance mismatches and cable loss variations across branches. Use Value: CLI voltage feedback allows microcontroller to dynamically adjust gain per channel-ensuring uniform signal integrity across all outputs. |
| OEM Video Processing Module | Field-Deployable Test Equipment |
|
Use Scenario: Integrating SDI input capability into an FPGA-based video processing board for live graphics overlay and format conversion. IC Role / Device Role / Timing Role: Front-end signal conditioner providing robust, jitter-controlled data to FPGA transceiver banks. Use Value: 100–220 ps rise/fall time and <5% overshoot ensure clean edge transitions-reducing bit error rate in high-speed FPGA sampling. |
Use Scenario: Portable SDI analyzer verifying cable health and signal integrity during on-site installation or maintenance. IC Role / Device Role / Timing Role: Real-time cable-length estimator using CLI voltage, combined with MUTE for safe signal injection testing. Use Value: CLI voltage resolution supports ±10 m cable length estimation-enabling rapid fault localization without time-domain reflectometry gear. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adaptive SDI equalizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH0034MA/NOPB | Same 16-pin SOIC footprint; lacks CLI output and MUTE pin; fixed DC restoration (no bypass). | Targeted at cost-sensitive, fixed-cable-length SDI receivers where diagnostics and flexible control are unnecessary. | Select LMH0034MA/NOPB only if CLI feedback and output muting are not required-reduces BOM count but sacrifices adaptability. |
| GS9064-INE3 | Gennum part with identical pinout; requires MUTE tied to GND (vs. LMH0024MAX/NOPB's active-high MUTE); no CLI function. | Legacy design migration path; suitable for drop-in replacement where CLI is unused and mute logic matches. | Choose GS9064-INE3 only for direct legacy board reuse-requires MUTE pin rework and forfeits CLI-based diagnostics. |
Compared with LMH0024MAX/NOPB, LMH0034MA/NOPB removes diagnostic and control features to reduce cost, while GS9064-INE3 offers legacy compatibility at the expense of modern monitoring capabilities-LMH0024MAX/NOPB uniquely balances full SMPTE compliance, real-time cable feedback, and hardware-level output control in one package.
Availability
LMH0024MAX/NOPB is available at Aetrix Electronics and suitable for broadcast infrastructure, professional video equipment, and industrial video processing systems requiring stable component supply, long-term lifecycle assurance, and SMPTE-certified signal integrity.
Supply support for LMH0024MAX/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 company delivering analog and embedded processing solutions for industrial, automotive, and communications markets, with leadership in high-speed interface and signal conditioning technologies.
LMH0024MAX/NOPB belongs to TI's Serial Digital Interface (SDI) product line, engineered specifically for broadcast-grade video signal conditioning-designed to meet SMPTE timing, jitter, and amplitude specifications in real-world coaxial cable environments.
FAQ
What is the primary function of the LMH0024MAX/NOPB in an SDI system?
The LMH0024MAX/NOPB functions as an adaptive cable equalizer that restores high-frequency loss and corrects DC baseline wander in SMPTE 259M/344M serial digital video signals transmitted over coaxial cable. It dynamically adjusts its equalization response based on incoming signal characteristics, enabling reliable reception up to 540 Mbps across varying cable lengths-making it essential for maintaining eye diagram integrity in broadcast and professional video equipment.
Does the LMH0024MAX/NOPB support both SD-SDI and HD-SDI data rates?
Yes, the LMH0024MAX/NOPB supports the full SMPTE 259M (270 Mbps, SD-SDI) and SMPTE 344M (540 Mbps, HD-SDI) data rates, as well as DVB-ASI at 270 Mbps. Its 125–540 Mbps operating range ensures compatibility with standard-definition, enhanced-definition, and high-definition serial digital interfaces without reconfiguration.
How does the Cable Length Indicator (CLI) pin on the LMH0024MAX/NOPB work?
The CLI pin on the LMH0024MAX/NOPB outputs an analog voltage (2.0–2.5 V) inversely proportional to the length of coaxial cable being equalized-e.g., ~2.5 V at 0 m and ~2.0 V at maximum supported length. This voltage is derived from the AEC loop and requires a valid input signal to be meaningful; it enables microcontroller-based diagnostics or automatic gain compensation in adaptive video systems.
Can the LMH0024MAX/NOPB operate with single-ended input signals?
Yes, the LMH0024MAX/NOPB accepts single-ended input signals by connecting the data to Pin 4 (SDI) and grounding Pin 5 (SDI). The device's input stage is designed for either differential or single-ended AC-coupled drive, though differential mode provides superior common-mode noise rejection and is recommended for demanding broadcast environments.
Is the LMH0024MAX/NOPB pin-compatible with the Gennum GS9064?
Yes, the LMH0024MAX/NOPB is footprint-compatible with the Gennum GS9064, sharing identical 16-pin SOIC packaging and pin assignments. However, Pin 16 (MUTE) operates actively high on the LMH0024MAX/NOPB but must be tied to ground on the GS9064 for normal operation-requiring minor schematic adjustment during migration.
LMH0024MAX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- SMPTE 259M / 344M
- Interface:
- Serial
- Voltage - Supply:
- 3.3V
- Supplier Device Package:
- 16-SOIC
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
LMH0024MAX/NOPB FAQ
1.How can I place an order for LMH0024MAX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH0024MAX/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LMH0024MAX/NOPB reliable?
The price and inventory of LMH0024MAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH0024MAX/NOPB is usually 5 days.
3.What payment methods are accepted for LMH0024MAX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH0024MAX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH0024MAX/NOPB?
LMH0024MAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH0024MAX/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LMH0024MAX/NOPB?
For technical support, including LMH0024MAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH0024MAX/NOPB requirements.
6.How does Aetrix verify that LMH0024MAX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH0024MAX/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LMH0024MAX/NOPB meets industry standards.
7.What is the process for return or replacement of LMH0024MAX/NOPB?
All LMH0024MAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH0024MAX/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LMH0024MAX/NOPB part is unused and in its original packaging.
Return procedure for LMH0024MAX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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