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Texas Instruments LMH0002SQE/NOPB
- Part No.:
- LMH0002SQE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Video Processing
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
LMH0002SQE/NOPB.pdf
- Description:
- IC VIDEO SERIAL DRIVER 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:331
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Product details
Overview
LMH0002SQE/NOPB from Texas Instruments is a SMPTE 292M/259M-compliant serial digital cable driver IC with differential input, 75Ω differential output, selectable slew rate (SD/HD pin), adjustable output amplitude via RREF resistor, and operation at data rates up to 1.485 Gbps. It drives coaxial cables (e.g., Belden 8281) in HD/SD video transmission systems.
For engineers reviewing the LMH0002SQE/NOPB datasheet, LMH0002SQE/NOPB pinout, LMH0002SQE/NOPB application, or LMH0002SQE/NOPB equivalent, key selection criteria include SMPTE compliance mode control, RREF-based amplitude tuning, thermal performance in WQFN package, and industrial temperature range support.
Technical Context
The LMH0002SQE/NOPB implements a current-mode differential output stage with programmable slew rate via the SD/HD pin: low = SMPTE 292M (fast rise/fall, 120–220 ps), high = SMPTE 259M (slower, 400–800 ps). Input stage is self-biased for DC- or AC-coupled differential signals.
Output voltage swing is set by an external RREF resistor (e.g., 750 Ω yields 800 mVP–P into 75 Ω), and common-mode output voltage is VCC – VSDO. Power consumption is 49 mA typical in SD mode and 43 mA in HD mode at VCC = 3.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 1.485 Gbps - supports SMPTE 292M HD-SDI and 270 Mbps DVB-ASI |
| Output Swing | 800 mVP–P (RREF = 750 Ω) - meets SMPTE 259M/292M eye diagram amplitude requirements |
| Additive Jitter | 26 psP–P @ 1.485 Gbps - ensures signal integrity over 100+ meter coax runs |
| Supply Voltage | 3.3 V ±5% - single-rail operation simplifies power design vs. dual-supply alternatives |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade video infrastructure equipment |
| Package | 16-pin WQFN (RUM0016A) - 4 mm × 4 mm footprint with exposed thermal pad for 42.7°C/W θJC |
| ESD Rating | HBM: 5 kV - exceeds IEC 61000-4-2 Level 3 for board-level robustness |
Pinout & Package
LMH0002SQE/NOPB uses a 4 mm × 4 mm, 16-pin WQFN package (TI package code RUM) with exposed thermal pad connected to VEE. Pin count, layout, and thermal metrics match TI's RUM0016A mechanical drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VEE) | Negative supply / ground reference | Return path for internal bias and output current; must be low-impedance connection to PCB ground plane |
| 2, 3 (SDI, SDI) | Differential data input pair | Self-biased inputs accept AC- or DC-coupled signals; common-mode range 1.6 V to VCC–VSDI/2 |
| 4 (RREF) | Output amplitude control | Resistor to VCC sets output swing (e.g., 750 Ω → 800 mVP–P); requires minimal parasitic capacitance |
| 5–8, 13–16 (NC) | No-connect terminals | Not internally bonded; must remain unconnected per TI design guidelines |
| 9 (VCC) | Positive supply | 3.3 V main rail; requires local 0.1 µF + 10 µF decoupling adjacent to pin |
| 10 (SD/HD) | Slew rate select | Low = SMPTE 292M (fast edge), high = SMPTE 259M (slower edge); TTL-compatible logic level |
| 11, 12 (SDO, SDO) | Differential data output pair | Current-mode 75 Ω outputs; require AC coupling and 75 Ω termination at receiver end |
Key Features
| Feature | Design Value |
|---|---|
| SMPTE 292M/259M Compliance | Guaranteed via selectable SD/HD pin control - eliminates need for external timing filters or edge-shaping circuits |
| Adjustable Output Amplitude | RREF resistor enables precise swing tuning (750–590 Ω range) to compensate for trace loss or meet specific receiver thresholds |
| Differential Input Architecture | Self-biased inputs eliminate external biasing components and support both AC- and DC-coupled source interfaces |
| Industrial Temperature Range | −40°C to +85°C operation validated across full electrical specs - suitable for broadcast encoders, IP video gateways, and outdoor cameras |
| Low-Power HD Operation | 43 mA supply current at 1.485 Gbps - reduces thermal load in dense video routing cards vs. legacy drivers |
Applications
| HD Video Distribution Amplifier | SDI-to-DVB-ASI Bridge |
|---|---|
Use Scenario: Splitting one HD-SDI source to multiple monitors or recorders in broadcast truck or OB van. IC Role / Device Role / Timing Role: Cable driver providing impedance-matched, jitter-controlled retransmission of SMPTE 292M signals over 75 Ω coax. Use Value: Maintains eye opening > 80% at 100 m with <26 ps additive jitter, enabling reliable multi-drop fanout without repeaters. | Use Scenario: Converting SMPTE 259M SD-SDI signals to DVB-ASI format for MPEG transport stream injection into RF modulators. IC Role / Device Role / Timing Role: Serial digital interface driver ensuring signal integrity at 270 Mbps with 18 ps additive jitter. Use Value: Enables direct interconnection between legacy SD video gear and modern DVB infrastructure without protocol translation hardware. |
| IP Video Encoder Front-End | Security Camera Video Transmitter |
Use Scenario: Conditioning SDI output from FPGA-based encoder ASIC before transmission over long-haul coax to network ingest point. IC Role / Device Role / Timing Role: High-speed buffer and line driver maintaining signal fidelity across PCB traces and connectors. Use Value: Reduces intersymbol interference via controlled slew rate and 75 Ω output matching, improving FEC efficiency in downstream IP stack. | Use Scenario: Driving analog HD video (via HD-TVI or HD-CVI) or embedded SDI from dome camera to DVR over RG59 cable. IC Role / Device Role / Timing Role: Robust cable driver supporting extended temperature operation and ESD-hardened I/O. Use Value: −40°C to +85°C rating and 5 kV HBM ESD withstand enable reliable outdoor deployment without external protection circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial digital cable driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH0002TMA/NOPB | Same silicon, 8-pin SOIC package; θJA = 160°C/W vs. 78.9°C/W for WQFN | Limited to lower-power SD-only use cases due to higher thermal resistance | Select when board space allows SOIC and thermal budget permits ≤125 mW dissipation |
| GS1578A | Gennum part replaced by LMH0002SQ; not pin-compatible with LMH0002SQE/NOPB's WQFN layout | Legacy design migration only; requires PCB redesign for WQFN footprint | Choose LMH0002SQE/NOPB for new designs requiring drop-in replacement of GS1578A functionality in compact layout |
Compared with LMH0002TMA/NOPB, LMH0002SQE/NOPB delivers 2× better thermal performance and smaller footprint for HD-density video cards; versus GS1578A, it offers identical functional behavior but requires WQFN-specific layout adaptation.
Availability
LMH0002SQE/NOPB is available at Aetrix Electronics and suitable for HD video distribution amplifiers, SDI-to-DVB-ASI bridges, and IP video encoder front-ends requiring stable component supply and industrial temperature support.
Supply support for LMH0002SQE/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 broad industrial and automotive qualification.
The LMH0002SQE/NOPB belongs to TI's high-speed interface portfolio, designed specifically for SMPTE-compliant video infrastructure where signal integrity, thermal efficiency, and layout density are critical.
FAQ
What is the maximum data rate supported by the LMH0002SQE/NOPB?
The LMH0002SQE/NOPB supports data rates up to 1.485 Gbps, fully compliant with SMPTE 292M HD-SDI standards. This capability is verified across the full industrial temperature range (−40°C to +85°C) and confirmed in TI's SNLS215E datasheet AC Electrical Characteristics table under DRSDI parameter.
How does the SD/HD pin affect LMH0002SQE/NOPB performance?
The SD/HD pin on the LMH0002SQE/NOPB selects output slew rate: logic low configures fast edges (120–220 ps rise/fall) for SMPTE 292M compliance, while logic high enables slower edges (400–800 ps) for SMPTE 259M. This pin directly controls internal current steering and is TTL-compatible, requiring no external pull-up/down resistors.
What is the purpose of the RREF pin on the LMH0002SQE/NOPB?
The RREF pin on the LMH0002SQE/NOPB sets output voltage swing by connecting an external resistor to VCC. A 750 Ω resistor yields 800 mVP–P into 75 Ω, while 590 Ω gives 1000 mVP–P. TI specifies tight placement rules: resistor must be near the pin and underlying copper removed to minimize parasitic capacitance affecting amplitude accuracy.
Is the LMH0002SQE/NOPB pin-compatible with the Gennum GS1578A?
No, the LMH0002SQE/NOPB is not pin-compatible with the Gennum GS1578A. While TI states the LMH0002SQ variant is form-fit-function compatible with GS1578A, the LMH0002SQE/NOPB uses a 16-pin WQFN package with different pinout (e.g., VEE on pin 1, NC on pins 5–8/13–16) versus GS1578A's 16-pin QFN layout. PCB redesign is required for migration.
What thermal performance can be expected from the LMH0002SQE/NOPB in a typical layout?
The LMH0002SQE/NOPB has a junction-to-case thermal resistance (θJC) of 42.7°C/W and junction-to-ambient (θJA) of 78.9°C/W when mounted per TI's RUM0016A guidelines - including soldering the exposed thermal pad to a 4-layer PCB with ≥4 thermal vias. At 149 mW typical HD-mode power, this yields ~6.4°C junction-to-case rise, enabling reliable operation without forced air in most video chassis.
LMH0002SQE/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Driver
- Applications:
- Consumer Video
- Standards:
- DVB-ASI, SMPTE
- Control Interface:
- Serial
- Voltage - Supply:
- 3.135V ~ 3.465V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-WQFN (4x4)
LMH0002SQE/NOPB FAQ
1.How can I place an order for LMH0002SQE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH0002SQE/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 LMH0002SQE/NOPB reliable?
The price and inventory of LMH0002SQE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH0002SQE/NOPB is usually 5 days.
3.What payment methods are accepted for LMH0002SQE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH0002SQE/NOPB transactions.
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4.How is shipping managed for LMH0002SQE/NOPB?
LMH0002SQE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH0002SQE/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 LMH0002SQE/NOPB?
For technical support, including LMH0002SQE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH0002SQE/NOPB requirements.
6.How does Aetrix verify that LMH0002SQE/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH0002SQE/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 LMH0002SQE/NOPB meets industry standards.
7.What is the process for return or replacement of LMH0002SQE/NOPB?
All LMH0002SQE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH0002SQE/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 LMH0002SQE/NOPB part is unused and in its original packaging.
Return procedure for LMH0002SQE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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