Texas Instruments LMH0366SQE/NOPB – 3G/HD/SD‑SDI Low‑Power Reclocker with Eye Monitor
The Texas Instruments LMH0366SQE/NOPB is a member of TI’s LMH0366 series of SDI video reclocker ICs designed for SMPTE-compliant serial digital video links. Engineered for 3G‑SDI, HD‑SDI, and SD‑SDI, this device supports data rates up to 2.97 Gbps and integrates clock/data recovery (CDR) for jitter attenuation, plus an on‑chip eye monitor to help evaluate signal integrity in-system. Housed in a compact 24‑pin WQFN (TI package code SQ/SQA), the LMH0366SQE/NOPB targets broadcast and professional video equipment operating across the industrial temperature range of −40°C to +85°C.
By reclocking incoming SDI streams and recovering a clean clock, the LMH0366SQE/NOPB improves link margin, reduces jitter accumulation across long chains, and enhances overall system robustness. Its low‑power operation and small footprint make it well suited for dense routers, multi‑channel distribution gear, camera backends, field monitors, and test instrumentation.
Where the LMH0366SQE/NOPB Fits in Your SDI Signal Chain
In a typical SDI path, equalization and cable drivers manage channel loss and drive strength, while the reclocker restores timing and reduces jitter. The Texas Instruments LMH0366SQE/NOPB sits at this pivotal point to:
- Recover clock and data (integrated CDR) from incoming SDI streams.
- Reduce jitter to improve downstream receiver tolerance and eye opening.
- Provide an eye monitor function that helps assess signal quality without removing boards from service.
This combination helps maintain SMPTE conformance over longer cable runs, through multiple stages of switching, or in electrically noisy environments common to production studios and OB vans.
Key Features and Benefits
- 3G/HD/SD‑SDI support up to 2.97 Gbps
- SMPTE 424M (3G‑SDI, 2.97 Gbps)
- SMPTE 292M (HD‑SDI, 1.485 Gbps)
- SMPTE 259M (SD‑SDI, 270 Mbps)
- Integrated CDR for jitter attenuation and improved signal integrity
- Built‑in eye monitor to visualize signal quality in-system
- Low‑power operation suitable for high‑density broadcast gear
- 3.3 V (typical) supply
- Industrial temperature range (−40°C to +85°C)
- 24‑pin WQFN package (TI code SQ/SQA) for compact layouts
- Surface‑mount, Tape & Reel packaging for automated assembly
These features make the TI LMH0366SQE/NOPB a strong candidate for upgrading legacy SDI paths to 3G capability or for new designs where signal integrity and board space are at a premium.
Technical Specifications
- Manufacturer / Brand: Texas Instruments
- Series: LMH0366
- Category: SDI Video Reclocker IC
- Part Number (MPN): LMH0366SQE/NOPB
- Supported Standards: SMPTE 424M, 292M, 259M
- Maximum Serial Data Rate: 2.97 Gbps (3G‑SDI)
- Jitter Attenuation: Integrated CDR for SDI signals
- Eye Monitor: Integrated
- Supply Voltage: 3.3 V (typical)
- Operating Temperature Range: −40°C to +85°C
- Package: 24‑WQFN (TI code SQ/SQA)
- Pin Count: 24
- Mounting Type: Surface Mount
- Packaging: Tape & Reel
- RoHS / Environmental: RoHS Compliant (Pb‑free)
- Power Consumption / Current Draw: Not specified in datasheet
If additional parameters (e.g., input equalization range, output swing, reference clock details) are required for your design, refer to the official TI datasheet.
Applications
The Texas Instruments LMH0366SQE/NOPB is purpose‑built for professional and broadcast video infrastructure where SDI remains a mainstay for reliable, deterministic transport. Typical applications include:
- Broadcast and professional video equipment
- SDI routers and switchers
- SDI distribution and repeater modules
- Camera links and field/studio monitors
- Test and measurement for SDI links
In each of these scenarios, the reclocker enhances eye opening and cleans the data stream, allowing downstream receivers, crosspoints, and cable drivers to operate with greater margin.
How the Eye Monitor Adds Value
An integrated eye monitor is particularly helpful in production and service environments. Without removing boards from a chassis, technicians can:
- Check the eye opening to gauge link health
- Compare channels for relative margin in multi‑lane systems
- Triage intermittent issues related to cabling or connectors
This capability reduces troubleshooting time and helps maintain uptime—a key consideration in live broadcast operations.
Compliance and Standards
The LMH0366SQE/NOPB supports the following SMPTE standards and data rates:
- SMPTE 424M (3G‑SDI): 2.97 Gbps
- SMPTE 292M (HD‑SDI): 1.485 Gbps
- SMPTE 259M (SD‑SDI): 270 Mbps
Compliance with these widely adopted specifications ensures interoperability across cameras, routers, converters, and monitors in professional workflows.
Design and Integration Notes
While specific schematic and layout recommendations are provided by TI in the datasheet, the following practical guidelines can help you integrate the LMH0366SQE/NOPB effectively:
- Power Integrity: Provide low‑impedance decoupling near the device for the 3.3 V supply; segregate noisy rails where applicable.
- Signal Integrity: Maintain controlled‑impedance routing for SDI lines and minimize stubs and via count to preserve eye opening.
- Placement: Position the reclocker close to the transition point between incoming cable/equalizer and the rest of the system to maximize jitter improvement.
- Thermal Considerations: Ensure adequate copper for heat spreading consistent with your board stack‑up; follow TI’s package‑specific layout guidance.
- Reference Material: For any register configuration, pin constraints, test modes, or eye monitor setup, consult the TI datasheet.
Because every SDI design has unique board and channel characteristics, validating performance on your target PCB with representative cabling is recommended.
Lifecycle, Environmental, and Regulatory
- Lifecycle Status: Not specified (check the Texas Instruments product page for current status)
- RoHS Status: RoHS Compliant (Pb‑free)
- REACH / other environmental disclosures: Not specified in datasheet
- Halogen‑free status: Not specified in datasheet
If your quality system requires conformance or material declarations beyond RoHS, review the TI product page and compliance documentation for the LMH0366.
Replacements and Approved Alternates
- Manufacturer‑recommended replacements: None listed
- Approved alternates: None listed
If you require second‑source options, consider testing alternates under the same channel, jitter, and temperature conditions to verify interoperability. Always validate SMPTE compliance at the system level when substituting parts.
Ordering Information
- MPN: LMH0366SQE/NOPB
- Manufacturer: Texas Instruments
- Series: LMH0366
- Function: 3G/HD/SD‑SDI reclocker with eye monitor
- Package: 24‑WQFN (TI code SQ/SQA)
- Mounting: Surface Mount
- Packaging: Tape & Reel
- Operating Temperature: −40°C to +85°C
- Supply Voltage: 3.3 V (typical)
- RoHS: Compliant (Pb‑free)
For the latest orderable part numbers, inventory, and packaging specifics, refer to TI’s product page.
Sourcing Checklist for Engineers and Buyers
To streamline sourcing and reduce back‑and‑forth, confirm the following when selecting the Texas Instruments LMH0366SQE/NOPB:
- Data Rate Coverage: 270 Mbps, 1.485 Gbps, and 2.97 Gbps (SMPTE 259M/292M/424M)
- Temperature Range: −40°C to +85°C for your deployment environment
- Electrical Fit: 3.3 V (typical) supply compatibility
- Mechanical Fit: 24‑WQFN footprint (SQ/SQA) and board stack‑up constraints
- Compliance: RoHS requirements for your region
- Lifecycle: Current production status on the TI product page
- Documentation: Access to the latest TI datasheet for design‑in specifics
This checklist helps ensure a smooth component handoff between design, sourcing, and manufacturing.
Use Cases and Design Scenarios
- Broadcast Routers and Crosspoints: Insert LMH0366SQE/NOPB stages to improve timing margins across multiple hops and reduce aggregate jitter in complex routing fabrics.
- SDI Distribution and Repeaters: Reclock and fan out long trunk feeds to multiple destinations with improved eye quality.
- Camera Interfaces and Monitors: Stabilize camera output streams and enhance receiver tolerance in field and studio monitors.
- Test & Measurement: Use the integrated eye monitor to quickly evaluate link health during bring‑up, production test, or field troubleshooting.
Across these scenarios, the Texas Instruments LMH0366SQE/NOPB offers a balance of compact size, low power, and integrated diagnostics to simplify SDI system design.
Frequently Asked Questions (FAQs)
Q: What SDI data rates are supported by the LMH0366?
A: It supports SD‑SDI (270 Mbps), HD‑SDI (1.485 Gbps), and 3G‑SDI (2.97 Gbps) per SMPTE 259M, 292M, and 424M.
Q: What is the operating temperature range?
A: −40°C to +85°C (industrial).
Q: What package is the LMH0366SQE/NOPB supplied in?
A: 24‑pin WQFN (TI package code SQ/SQA), typically supplied in Tape & Reel.
Q: Does the LMH0366SQE/NOPB include jitter attenuation?
A: Yes. It integrates a CDR to attenuate jitter on SDI streams.
Q: Is an eye monitor included?
A: Yes. An integrated eye monitor allows in‑system observation of signal quality.
Q: What is the supply voltage?
A: 3.3 V (typical).
Q: Is the device RoHS compliant?
A: Yes. The LMH0366SQE/NOPB is RoHS Compliant (Pb‑free).
Q: What is the device’s power consumption?
A: Not specified in datasheet.
Q: Are there recommended replacements or approved alternates?
A: None are listed in the provided data; check the TI product page for any updates.
Resources
- Product Page: https://www.ti.com/product/LMH0366
- Datasheet: https://www.ti.com/lit/ds/symlink/lmh0366.pdf
If you are qualifying the Texas Instruments LMH0366SQE/NOPB for a new design, start with the datasheet for electrical specifications, pin descriptions, configuration guidance, and layout recommendations. The product page typically provides up‑to‑date lifecycle information, orderable part numbers, and compliance documentation.
By combining SMPTE‑compliant data‑rate support, integrated CDR, and an on‑chip eye monitor in a compact WQFN package, the Texas Instruments LMH0366SQE/NOPB helps engineers build robust, maintainable SDI systems. Whether you are refreshing legacy infrastructure or designing a new 3G‑SDI product line, this reclocker provides the signal‑integrity boost and diagnostics that modern broadcast equipment demands.