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Texas Instruments LMH0002SQX/NOPB
- Part No.:
- LMH0002SQX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Video Processing
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
LMH0002SQX/NOPB.pdf
- Description:
- IC VIDEO SERIAL DRIVER 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,311
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Product details
Overview
LMH0002SQX/NOPB from Texas Instruments is an 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 up to 1.485 Gbps. It drives coaxial cables such as Belden 8281 or 1694A in broadcast video infrastructure.
For engineers reviewing the LMH0002SQX/NOPB datasheet, LMH0002SQX/NOPB pinout, LMH0002SQX/NOPB application, or LMH0002SQX/NOPB equivalent, key selection criteria include SMPTE compliance mode control, output swing tuning via external RREF, thermal performance in WQFN package, and industrial temperature range support.
Technical Context
The LMH0002SQX/NOPB implements a current-mode differential output stage with programmable slew rate selection via the SD/HD pin-low for SMPTE 292M (HD) compliance (400–800 ps rise/fall), high for SMPTE 259M (SD) compliance (120–220 ps). Input common-mode voltage is self-biased at ~2.1 V with 3.3 V supply.
Output amplitude is set by an external resistor (RREF) between RREF pin and VCC, enabling precise 750–1100 mVP–P single-ended swing into 75 Ω. The device operates on a single 3.3 V ±5% supply and draws 38–49 mA depending on SD/HD state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 1.485 Gbps - supports full SMPTE 292M HD-SDI and SMPTE 344M transmission |
| Output Swing | 750–1100 mVP–P - adjustable via RREF resistor (590 Ω or 750 Ω) for precise 75 Ω line driving |
| Rise/Fall Time | 120–800 ps - selectable via SD/HD pin for SMPTE 259M (fast) or 292M (slower) compliance |
| Additive Jitter | 18–26 psP–P - meets SMPTE jitter budget requirements across SD and HD rates |
| Supply Voltage | 3.3 V ±5% - single-rail operation simplifies power design in broadcast equipment |
| Operating Temp | −40°C to +85°C - industrial-grade rating enables use in field-deployed routers and cameras |
| Package | 16-pin WQFN (RUM) - 4 mm × 3.5 mm footprint with exposed DAP for thermal management |
Pinout & Package
The LMH0002SQX/NOPB is housed in a 16-pin WQFN package (RUM0016A) with 0.4 mm pitch and exposed thermal pad (DAP) connected to VEE. Package dimensions are 4.0 mm × 3.5 mm × 0.8 mm (max height), JEDEC MSL Level-1 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VEE) | Negative supply reference | Ground connection for analog core and exposed DAP; must be low-impedance |
| 2, 3 (SDI, SDI) | Differential data input | Self-biased true/complement inputs accepting AC- or DC-coupled signals within 1.6–2.1 V common-mode range |
| 4 (RREF) | Output amplitude control | Connects to VCC via precision resistor (590 Ω or 750 Ω) to set output swing |
| 5, 6, 7, 8 (NC) | No connect | Internally unused; must remain unconnected per TI layout guidelines |
| 9 (VCC) | Positive supply | 3.3 V ±5% supply input; requires local 0.1 µF bypass capacitor |
| 10 (SD/HD) | Slew rate select | High = SMPTE 259M (fast edge); Low = SMPTE 292M (slower edge for reduced EMI) |
| 11, 12 (SDO, SDO) | Differential data output | Current-mode outputs driving 75 Ω coax; require AC coupling and proper termination |
| 13–16 (NC) | No connect | Unused pins; no routing or connection required |
Key Features
| Feature | Design Value |
|---|---|
| SMPTE 292M/259M compliance | Guaranteed timing and jitter performance across both standards via hardware-selectable slew rate |
| Adjustable output amplitude | Enables precise 750–1100 mVP–P swing into 75 Ω without redesigning output network |
| Single 3.3 V supply | Eliminates need for dual supplies or level shifters in HD-SDI signal chain |
| Industrial temperature range | Supports deployment in outdoor enclosures, security camera housings, and broadcast trucks |
| Low additive jitter | 18–26 psP–P ensures bit-error-rate integrity over long coax runs in real-world EMI environments |
Applications
| Broadcast Video Routing | HD-SDI Distribution Amplifier |
|---|---|
Use Scenario: Signal distribution from camera head to production switcher in live OB van. IC Role / Device Role / Timing Role: Cable driver re-driving SMPTE 292M HD-SDI stream after PCB trace loss. Use Value: Maintains eye diagram integrity at 1.485 Gbps over 100 m Belden 1694A coax with <26 ps jitter. | Use Scenario: Fan-out of one HD-SDI source to eight monitors in broadcast control room. IC Role / Device Role / Timing Role: High-fidelity retransmission node with matched output impedance and minimal skew. Use Value: Enables simultaneous drive of multiple 75 Ω loads without signal degradation or reflections. |
| Security Camera Transmitter | Digital Video Recorder Interface |
Use Scenario: Long-line HD video transmission from outdoor PTZ camera to central NVR over coax. IC Role / Device Role / Timing Role: Final-stage driver conditioning signal for extended cable run. Use Value: −40°C to +85°C rating ensures reliability in unheated enclosures; adjustable swing compensates for cable loss. | Use Scenario: Input interface on DVR board receiving HD-SDI feed from encoder or camera. IC Role / Device Role / Timing Role: Re-clocking and impedance-matched driver before internal processing path. Use Value: Differential input rejects common-mode noise on long interconnects; 75 Ω output matches downstream trace impedance. |
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; higher θJA (160°C/W) vs. WQFN (78.9°C/W) | Limited to lower-power or lower-density layouts; less suitable for thermally constrained HD-SDI modules | Select when legacy SOIC footprint compatibility is required and thermal margin allows |
| GS1578A | Gennum part replaced by LMH0002SQ; form-fit-function compatible per TI documentation | Legacy Gennum-based designs requiring drop-in upgrade path with identical pinout and biasing | Choose for migration from GS1578A without PCB revision; verify RREF resistor value match |
Compared with LMH0002TMA/NOPB, the LMH0002SQX/NOPB offers superior thermal performance and smaller footprint for space-constrained HD-SDI modules, while GS1578A serves as a verified legacy replacement but lacks updated industrial temp support and RoHS-optimized packaging.
Availability
LMH0002SQX/NOPB is available at Aetrix Electronics and suitable for broadcast video routing, HD-SDI distribution amplifiers, and security camera transmitter systems requiring stable component supply, long-term lifecycle assurance, and industrial temperature capability.
Supply support for LMH0002SQX/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 focus.
The LMH0002SQX/NOPB belongs to TI's high-speed interface product line, engineered specifically for SMPTE-compliant broadcast video infrastructure including routers, switchers, and camera backends.
FAQ
What is the operating temperature range for the LMH0002SQX/NOPB?
The LMH0002SQX/NOPB is rated for industrial operation from −40°C to +85°C, making it suitable for outdoor broadcast equipment, security camera housings, and vehicle-mounted video systems. This range is confirmed in the Recommended Operating Conditions table of the SNLS215E datasheet and applies specifically to the SQ-grade WQFN variant, unlike the MA-grade SOIC version which is limited to 0°C to +70°C.
How does the SD/HD pin affect LMH0002SQX/NOPB performance?
The SD/HD pin on the LMH0002SQX/NOPB selects output slew rate: logic low configures faster edges (400–800 ps) for SMPTE 292M HD-SDI compliance, while logic high enables slower edges (120–220 ps) for SMPTE 259M SD-SDI. This hardware-controlled setting directly determines rise/fall time, jitter, and EMI profile-no software or register access is involved. The pin must be hard-wired to VCC or ground during PCB design.
What resistor value is required on the RREF pin of LMH0002SQX/NOPB to achieve 800 mVP–P output?
To achieve 800 mVP–P single-ended output swing into a 75 Ω load, the LMH0002SQX/NOPB requires a 750 Ω ±1% resistor connected between the RREF pin and VCC. This value is explicitly specified in the DC Electrical Characteristics table under "VSDO Output Voltage Swing" for the 750 Ω condition. Placement must be adjacent to the RREF pin with minimized parasitic capacitance.
Is the LMH0002SQX/NOPB pin-compatible with any Gennum devices?
Yes-the LMH0002SQX/NOPB is form-fit-function compatible with the Gennum GS1578A, as documented in the "Replacing the Gennum GS1528, GS1528A, and GS1578A" section of the SNLS215E datasheet. This includes identical 16-pin WQFN (RUM) footprint, matching pin functions (including SD/HD, RREF, and differential I/O), and equivalent electrical behavior-enabling direct replacement without PCB modification.
What is the maximum additive jitter specification for LMH0002SQX/NOPB at 1.485 Gbps?
The LMH0002SQX/NOPB has a maximum additive jitter specification of 26 psP–P at 1.485 Gbps, as stated in the AC Electrical Characteristics table under "tjit Additive Jitter". This value is measured differentially at the SDO/SDO outputs and ensures conformance to SMPTE 292M jitter budgets for HD-SDI transmission over coaxial cable up to 100 meters.
LMH0002SQX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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)
LMH0002SQX/NOPB FAQ
1.How can I place an order for LMH0002SQX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH0002SQX/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 LMH0002SQX/NOPB reliable?
The price and inventory of LMH0002SQX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH0002SQX/NOPB is usually 5 days.
3.What payment methods are accepted for LMH0002SQX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH0002SQX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH0002SQX/NOPB?
LMH0002SQX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH0002SQX/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 LMH0002SQX/NOPB?
For technical support, including LMH0002SQX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH0002SQX/NOPB requirements.
6.How does Aetrix verify that LMH0002SQX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH0002SQX/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 LMH0002SQX/NOPB meets industry standards.
7.What is the process for return or replacement of LMH0002SQX/NOPB?
All LMH0002SQX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH0002SQX/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 LMH0002SQX/NOPB part is unused and in its original packaging.
Return procedure for LMH0002SQX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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