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Texas Instruments LMH0307GR/NOPB
- Part No.:
- LMH0307GR/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Video Processing
- Package:
- 25-TFBGA, CSPBGA
- Datasheet:
-
LMH0307GR/NOPB.pdf
- Description:
- IC VIDEO DRIVER 25CSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,475
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Product details
Overview
LMH0307GR/NOPB from Texas Instruments is a 3 Gbps SMPTE-compliant dual-output SDI cable driver IC used in broadcast video signal distribution. It delivers complementary 75Ω outputs, supports data rates up to 2.97 Gbps (SMPTE 424M/292M/344M/259M), features integrated cable detect and loss-of-signal detection, and operates from a single 3.3V supply in digital video routers and distribution amplifiers.
For engineers reviewing the LMH0307GR/NOPB datasheet, LMH0307GR/NOPB pinout, LMH0307GR/NOPB application, or LMH0307GR/NOPB equivalent, key selection considerations include dual-channel 75Ω drive capability, SMBus-configurable slew rate (SD/HD mode), ±10% output amplitude adjustment, cable termination fault detection, and industrial temperature operation (−40°C to +85°C).
Technical Context
The LMH0307GR/NOPB implements two current-mode differential drivers with independent enable control and programmable output amplitude via SMBus registers. Its input accepts differential or single-ended SDI signals, while its outputs comply with SMPTE 424M (HD) or SMPTE 259M (SD) rise/fall time requirements based on the SD/HD pin state or SMBus register 02h.
Intelligent diagnostics include loss-of-signal (LOS) detection at the input and cable termination fault (TF) sensing per output channel-both reportable via SMBus status register 01h and maskable in register 02h. The FAULT pin provides open-drain wired-OR fault aggregation across multiple devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 2.97 Gbps - supports full SMPTE 424M (1080p60) and SMPTE 292M (1080i) HD-SDI video streams. |
| Output Type | Dual complementary 75Ω current-mode outputs - drives coaxial cables (e.g., Belden 1694A) without external line drivers. |
| Slew Rate Control | Selectable via SD/HD pin or SMBus - HD mode (400–800 ps) for SMPTE 424M/292M; SD mode (90–130 ps) for SMPTE 259M compliance. |
| Cable Detect | Per-output termination sensing - detects near-end impedance mismatch and asserts fault flag when un-terminated or improperly terminated. |
| Power Consumption | 275 mW typical in HD mode; 4 mW in deep power-save mode - enabled by pulling ENABLE low or via SMBus PD bits. |
| SMBus Interface | 7-bit default address 0x17 - supports dynamic address reassignment, register read/write, and multi-device daisy-chained RSTI/RSTO configuration. |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade broadcast equipment deployment in rack-mounted routers and DA systems. |
Pinout & Package
LMH0307GR/NOPB is packaged in a 25-ball CS-BGA (package code NYA), 3 mm × 3 mm, 0.5 mm pitch, with exposed thermal pad connected to VEE (ground). Pin functions are validated per TI SNLS286I datasheet Rev I.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDI / SDI | Differential serial data input | Accepts true/complement SDI signal; supports single-ended operation with proper termination of unused input. |
| SDO0 / SDO0, SDO1 / SDO1 | Dual complementary 75Ω outputs | Current-mode outputs; each pair drives one coaxial channel with adjustable amplitude (±10% in 5 mV steps via SMBus). |
| SD/HD | Slew rate select input | Internal pulldown; logic high selects SMPTE 259M (SD) timing; low selects SMPTE 424M/292M (HD) timing. |
| ENABLE | Output driver enable | Internal pullup; driving low powers off both output stages and enters 4 mW deep power-save mode. |
| RREF | Bias reference terminal | Requires external 750Ω resistor to VCC; sets output common-mode voltage and amplitude accuracy. |
| SDA / SCL | SMBus bidirectional data/clock | Open-drain interface; requires external pullups; enables register access for slew rate, amplitude, fault masking, and address reconfiguration. |
| FAULT | Open-drain fault flag | Asserted low on LOS or any termination fault; supports wired-OR connection across multiple LMH0307GR/NOPB units. |
| RSTI / RSTO | Reset chain control | RSTI (input, internal pullup) resets device; RSTO (output) daisy-chains to next device's RSTI for SMBus address assignment. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel SDI cable drive | Two independent 75Ω current-mode outputs support simultaneous routing to separate coaxial paths without external buffering. |
| Intelligent cable diagnostics | Per-output termination fault detection and input loss-of-signal sensing feed into SMBus status register and FAULT pin for system-level fault reporting. |
| Configurable output performance | Slew rate (SD/HD pin or SMBus), amplitude (±10% in 5 mV steps), and power-down (ENABLE or SMBus PD bits) are all software-controllable. |
| Multi-device SMBus scalability | Default 7-bit address 0x17 supports dynamic reassignment via register 00h; RSTI/RSTO daisy-chain enables unique addressing of up to 127 devices on shared SDA/SCL lines. |
| Industrial-grade reliability | Qualified over −40°C to +85°C; 8 kV HBM ESD rating; RoHS-compliant SnAgCu or Sn lead finish; MSL Level-1 (GR) or Level-3 (SQ) reflow compatibility. |
Applications
| Broadcast Video Routing | Distribution Amplification |
|---|---|
|
Use Scenario: A 3G-SDI video router distributes 1080p60 signals from multiple sources to dozens of monitors and recording devices. IC Role / Device Role / Timing Role: LMH0307GR/NOPB acts as output buffer and cable driver for each routed path, maintaining signal integrity over 100+ meter coax runs. Use Value: Dual outputs reduce component count per port; cable detect prevents silent failures from unplugged cables; SMBus enables centralized health monitoring. |
Use Scenario: A studio-grade distribution amplifier splits one HD-SDI source to 16 synchronized display outputs. IC Role / Device Role / Timing Role: LMH0307GR/NOPB serves as per-channel driver stage, ensuring matched rise/fall times and low additive jitter (<20 psP-P at 2.97 Gbps). Use Value: Programmable slew rate guarantees SMPTE 424M compliance; amplitude tuning compensates for trace losses; fault aggregation simplifies system diagnostics. |
| Field Production Equipment | Remote Camera Control Systems |
|
Use Scenario: Mobile OB van uses modular I/O cards to handle mixed SD/HD/3G-SDI feeds under vibration and thermal stress. IC Role / Device Role / Timing Role: LMH0307GR/NOPB provides robust, temperature-stable cable drive with automatic fault response during live transmission. Use Value: −40°C to +85°C operation ensures reliability in uncontrolled environments; deep power-save mode reduces heat and power draw during standby. |
Use Scenario: PTZ camera head transmits HD-SDI video and receives bidirectional control data over a single coaxial cable. IC Role / Device Role / Timing Role: LMH0307GR/NOPB drives the outbound video signal while its SMBus interface reports cable attachment status to the host controller. Use Value: Cable detect confirms physical link presence before enabling control protocols; FAULT pin integration enables fail-safe shutdown on disconnection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SDI cable driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH0307SQ/NOPB | Same die, 16-pin WQFN package (4×4 mm); higher θJA (43°C/W vs. 67.6°C/W for GR); different pinout and thermal pad connection. | Preferred for space-constrained PCBs where BGA assembly is not available; requires revised layout and thermal management. | Select LMH0307SQ/NOPB when WQFN handling and rework are required; LMH0307GR/NOPB suits high-density, thermally optimized BGA designs. |
| LMH0384RTVT | Single-output 3G-SDI driver (no dual outputs); includes integrated reclocking; no cable detect or SMBus interface; fixed 800 mVP-P amplitude. | Used where signal regeneration is needed instead of simple drive amplification; lacks diagnostic features and configurability. | Choose LMH0384RTVT only if reclocking is mandatory and diagnostics are unnecessary; LMH0307GR/NOPB is superior for scalable, intelligent distribution. |
Compared with LMH0307SQ/NOPB, the LMH0307GR/NOPB offers lower thermal resistance in high-power-density layouts and native BGA solder joint reliability; compared with LMH0384RTVT, it provides dual-channel flexibility, real-time diagnostics, and full SMBus configurability-critical for modern broadcast infrastructure.
Availability
LMH0307GR/NOPB is available at Aetrix Electronics and suitable for broadcast video routing, distribution amplification, field production equipment, and remote camera control systems requiring stable component supply and long-term lifecycle support.
Supply support for LMH0307GR/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 for industrial, automotive, and communications markets.
The LMH0307GR/NOPB belongs to TI's high-speed video interface product line, engineered specifically for SMPTE-compliant broadcast infrastructure where signal integrity, cable diagnostics, and multi-device manageability are critical.
FAQ
What is the primary function of the LMH0307GR/NOPB in a video system?
The LMH0307GR/NOPB is a dual-output 3 Gbps SDI cable driver IC that conditions and amplifies serial digital video signals for reliable transmission over 75Ω coaxial cables. It maintains SMPTE 424M/292M/259M compliance, provides cable detect and loss-of-signal diagnostics, and supports SMBus-based configuration-making it essential in broadcast routers, DAs, and field gear where signal fidelity and system visibility are paramount. The LMH0307GR/NOPB replaces discrete driver solutions with integrated intelligence and dual-channel efficiency.
Does the LMH0307GR/NOPB require external resistors, and if so, which ones?
Yes, the LMH0307GR/NOPB requires an external 750Ω resistor connected between the RREF pin and VCC to set output common-mode voltage and amplitude accuracy. Additionally, SDA and SCL pins require external pullup resistors (typically 2.2–10 kΩ to 3.3V), and the FAULT, RSTI, and ENABLE pins may need pullups depending on system logic levels. No termination resistors are needed on SDO outputs-the LMH0307GR/NOPB drives 75Ω loads directly. All external components must be placed close to their respective pins per TI layout guidelines.
How does cable detect work on the LMH0307GR/NOPB, and what does it indicate?
Cable detect on the LMH0307GR/NOPB senses near-end termination impedance at each output (SDO0 and SDO1) by monitoring output amplitude during active signal transmission. If termination is missing or incorrect, reflected energy causes abnormally high amplitude, triggering a termination fault (TF) flag in SMBus status register 01h and asserting the open-drain FAULT pin low. This feature enables real-time detection of unplugged or faulty cables without interrupting video flow. The LMH0307GR/NOPB must be enabled for cable detect to operate, and detection requires ~4 ms of powered operation per check.
Can the LMH0307GR/NOPB operate with both SD and HD video standards, and how is mode selected?
Yes, the LMH0307GR/NOPB supports SMPTE 259M (SD), SMPTE 344M (ED), SMPTE 292M (HD), and SMPTE 424M (3G) standards. Mode selection is controlled by the SD/HD pin: logic high configures slower rise/fall times (90–130 ps) for SMPTE 259M compliance; logic low configures faster edges (400–800 ps) for SMPTE 424M/292M. This setting can also be overridden via SMBus register 02h bit 7, allowing dynamic switching without hardware changes. The LMH0307GR/NOPB maintains <20 psP-P additive jitter across all supported data rates.
What is the role of the RSTI and RSTO pins in multi-device configurations?
RSTI (Reset Input) and RSTO (Reset Output) enable daisy-chained SMBus address reassignment for multiple LMH0307GR/NOPB devices sharing SDA/SCL lines. The host drives RSTI of the first device to initiate reset; upon writing register 00h (ID), that device asserts RSTO high, releasing the next device from reset and allowing its address programming. This sequence repeats until all units have unique 7-bit SMBus addresses (e.g., 0x17, 0x16, 0x15). The LMH0307GR/NOPB uses this mechanism to avoid address collisions-critical in dense video routing frames where dozens of drivers coexist on one bus.
LMH0307GR/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 25-TFBGA, CSPBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Driver
- Applications:
- Professional Video
- Standards:
- DVB-ASI, SMPTE
- Control Interface:
- GPIO
- Voltage - Supply:
- 3.14V ~ 3.47V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 25-CSBGA (3x3)
LMH0307GR/NOPB FAQ
1.How can I place an order for LMH0307GR/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH0307GR/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 LMH0307GR/NOPB reliable?
The price and inventory of LMH0307GR/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH0307GR/NOPB is usually 5 days.
3.What payment methods are accepted for LMH0307GR/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH0307GR/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH0307GR/NOPB?
LMH0307GR/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH0307GR/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 LMH0307GR/NOPB?
For technical support, including LMH0307GR/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH0307GR/NOPB requirements.
6.How does Aetrix verify that LMH0307GR/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH0307GR/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 LMH0307GR/NOPB meets industry standards.
7.What is the process for return or replacement of LMH0307GR/NOPB?
All LMH0307GR/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH0307GR/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 LMH0307GR/NOPB part is unused and in its original packaging.
Return procedure for LMH0307GR/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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