My Inquiry
My Account
Texas Instruments LMH0302SQX/NOPB
- Part No.:
- LMH0302SQX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Video Processing
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
LMH0302SQX/NOPB.pdf
- Description:
- IC VIDEO DRIVER 16LLP
- Quantity:
- Payment:
- Shipping:
Inventory:4,213
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMH0302SQX/NOPB from Texas Instruments is a 3-Gbps HD/SD SDI cable driver IC designed for serial digital video transmission over 75-Ω coaxial cables. It supports ST 424 (3G), ST 292 (HD), and ST 259 (SD) standards, delivers 800 mVP–P single-ended output swing into 75 Ω, features selectable slew rate via SD/HD pin, and operates from a single 3.3-V supply with 165 mW typical power in HD mode.
For engineers reviewing the LMH0302SQX/NOPB datasheet, LMH0302SQX/NOPB pinout, LMH0302SQX/NOPB application, or LMH0302SQX/NOPB equivalent, key selection considerations include SMPTE-compliant rise/fall time control (90–800 ps), differential 100-Ω input impedance, output driver enable functionality, RREF-adjustable voltage swing, and WQFN-16 package thermal performance (RθJA = 47.8°C/W).
Technical Context
The LMH0302SQX/NOPB implements a current-mode output stage with externally adjustable amplitude via RREF (750 Ω recommended), enabling precise compliance with SMPTE eye diagram requirements across SD, HD, and 3G data rates. Its dual-slew-rate architecture-controlled by the SD/HD pin-ensures conformance to ST 259 (slow) and ST 292/424 (fast) timing specifications without external component changes.
Input stage accepts AC- or DC-coupled differential signals with 100-Ω termination and self-biased inputs; output drivers are individually enabled/disabled via the ENABLE pin (internal pullup). The device integrates no internal termination resistors, requiring external 49.9-Ω differential input termination and 4.7-µF AC-coupling capacitors on SDO/SDO per SMPTE wander requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 2.97 Gbps - supports full ST 424 (3G-SDI) operation with additive jitter ≤20 psP–P. |
| Output Swing | 800 mVP–P (typ) into 75 Ω - set by 750-Ω RREF resistor; enables SMPTE-compliant signal integrity at 3G. |
| Rise/Fall Time | 90–130 ps (ST 292/424) or 400–800 ps (ST 259) - selected via SD/HD pin; ensures eye opening compliance. |
| Input Impedance | 100 Ω differential - matches standard SDI receiver input; requires external 49.9-Ω termination network. |
| Supply Voltage | 3.3 V ±3.6% - single rail only; eliminates need for dual supplies in broadcast video systems. |
| Power Consumption | 165 mW (typ, HD mode) - enables low-thermal-density placement in dense router/distribution amplifier PCBs. |
| Operating Temp | −40°C to +85°C - qualified for industrial broadcast equipment environments including OB vans and studio racks. |
Pinout & Package
LMH0302SQX/NOPB uses a 4.00 mm × 4.00 mm WQFN-16 package with exposed thermal pad (EP) requiring solder connection to ground plane. Pin 1 index area located at top-left corner; pin 1 quadrant Q1 per tape-and-reel specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDI / SDI | Differential serial data input | True/complement pair accepts 100-Ω differential input; self-biased for AC/DC coupling flexibility. |
| SDO / SDO | Differential serial data output | Single-ended 75-Ω outputs; require external 4.7-µF AC-coupling caps per SMPTE wander spec. |
| ENABLE | Output driver enable control | Active-low; internal pullup ensures safe default-on state; powers down SDO/SDO when asserted. |
| SD/HD | Slew rate mode select | Low = ST 292/424 fast mode (90–130 ps); high = ST 259 slow mode (400–800 ps). |
| RREF | Output amplitude reference | Connect 750-Ω resistor to VCC; sets 800 mVP–P output swing; must be placed adjacent to pin with anti-pad. |
| VCC | Positive supply | 3.3-V main supply; bypass with 0.1-µF ceramic capacitor placed <1 mm from pin. |
| VEE | Ground reference | 0 V return; connected to system ground plane; EP pad must be vias-to-ground. |
| NC | No-connect | Pins 5, 7, 8, 13, 14, 15, 16 - not bonded; must remain unconnected per TI design guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| ST 424/292/259 compliance | Guaranteed via pin-selectable slew rate and output swing; meets SMPTE eye mask and jitter specs at all rates. |
| Adjustable output amplitude | Set precisely via single external RREF resistor (750 Ω ±1%) - eliminates trimming or calibration in production. |
| Output driver power-down | ENABLE pin reduces supply current from 59 mA to 33 mA (HD mode), cutting dynamic power by ~44%. |
| Thermal management ready | Exposed pad (EP) with via array to ground plane achieves RθJB = 25.6°C/W - critical for sustained 3G operation. |
| Footprint compatibility | Pinout and 4×4 mm footprint match LMH0002SQ - enables drop-in upgrade path in legacy SDI designs. |
Applications
| Video Distribution Amplifier | Digital Video Router |
|---|---|
|
Use Scenario: Amplifying and splitting one SDI source to multiple monitors or recording devices in broadcast control rooms. IC Role / Device Role / Timing Role: Cable driver providing gain, impedance matching, and jitter-controlled retransmission of 3G-SDI signals. Use Value: Maintains SMPTE-compliant eye opening after splitting; 800 mVP–P output drives up to 100 m of Belden 1694A coax at 2.97 Gbps. |
Use Scenario: High-density routing of HD and 3G-SDI feeds between cameras, switchers, and recorders in live production trucks. IC Role / Device Role / Timing Role: Output stage driving backplane or panel-mounted BNCs with minimal added jitter (<20 psP–P). Use Value: Dual-slew-rate support allows same hardware to route both legacy SD and modern 3G signals without firmware change. |
| Studio Camera Interface | OEM Broadcast Encoder Module |
|
Use Scenario: Embedding SDI output in compact camera heads where thermal headroom and board space are constrained. IC Role / Device Role / Timing Role: Final-stage driver interfacing FPGA-generated video to 75-Ω coax output connector. Use Value: 165 mW HD-mode power and 4.0×4.0 mm WQFN package enable integration into sub-25 mm² encoder PCB footprints. |
Use Scenario: Integrating SDI output capability into multi-format professional encoders supporting SD/HD/3G-SDI and HDMI simultaneously. IC Role / Device Role / Timing Role: Standardized, pin-compatible replacement for Gennum GS2978 in existing encoder reference designs. Use Value: Footprint compatibility with LMH0002SQ and documented replacement path for GS2978 reduce redesign risk and qualification time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SDI cable driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH0384SQ/NOPB | Quad-channel version; identical per-channel specs but 32-pin WQFN; higher total power (4×165 mW). | Used in multi-port distribution amps or routers needing ≥4 simultaneous SDI outputs. | Select when board layout supports larger 5×5 mm package and system requires ≥4 independent SDI drivers. |
| GS2978-IBE3 | Legacy Gennum part; same pinout and function but obsolete; no longer manufactured or supported. | Legacy designs still in production; requires obsolescence mitigation planning. | LMH0302SQX/NOPB is TI's designated functional replacement; verified pin-compatible with identical RREF and SD/HD logic. |
Compared with LMH0384SQ/NOPB, the LMH0302SQX/NOPB offers lower thermal density and smaller footprint for single-channel applications; compared with GS2978-IBE3, it provides active technical support, extended lifecycle, and improved jitter performance (20 ps vs 25 psP–P).
Availability
LMH0302SQX/NOPB is available at Aetrix Electronics and suitable for broadcast video distribution amplifiers, digital video routers, and OEM studio camera interfaces requiring stable component supply across long product lifecycles and high-reliability operating conditions.
Supply support for LMH0302SQX/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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets since 1930.
The LMH0302SQX/NOPB belongs to TI's broadcast video interface product line, engineered specifically for SMPTE-compliant serial digital video transport in professional broadcast infrastructure equipment.
FAQ
What is the maximum data rate supported by the LMH0302SQX/NOPB?
The LMH0302SQX/NOPB supports data rates up to 2.97 Gbps, fully compliant with SMPTE ST 424 (3G-SDI). It maintains additive jitter ≤20 psP–P at this rate and meets eye diagram masks for ST 292 (HD-SDI) and ST 259 (SD-SDI) at lower rates. This performance is validated across the full −40°C to +85°C operating range using Belden 1694A coaxial cable.
How does the SD/HD pin affect LMH0302SQX/NOPB operation?
The SD/HD pin selects slew rate mode: logic low configures fast rise/fall times (90–130 ps) for ST 292/424 compliance, while logic high sets slower times (400–800 ps) for ST 259. This pin directly controls internal current sources and does not require external components. The setting is sampled at power-up and remains static during operation unless changed externally.
Can the LMH0302SQX/NOPB drive 75-Ω coaxial cable directly?
Yes - the LMH0302SQX/NOPB is designed to drive 75-Ω coaxial cable directly via its single-ended SDO/SDO outputs. It requires external 4.7-µF AC-coupling capacitors per SMPTE wander specifications and matches 75-Ω characteristic impedance. Tested performance includes 100 m of Belden 1694A at 2.97 Gbps with >15 dB return loss from 5 MHz to 3 GHz.
What is the purpose of the RREF pin on the LMH0302SQX/NOPB?
The RREF pin sets output voltage swing by connecting an external resistor (typically 750 Ω ±1%) between RREF and VCC. This resistor programs the output current source to deliver 800 mVP–P into 75 Ω. Placement must be adjacent to the pin with anti-pad under the trace to minimize parasitic capacitance, as specified in TI's layout guidelines.
Is the LMH0302SQX/NOPB pin-compatible with the LMH0002SQ?
Yes - the LMH0302SQX/NOPB is footprint compatible with the LMH0002SQ, sharing identical 4.00 mm × 4.00 mm WQFN-16 package dimensions, pin count, and pin functions. This enables direct PCB-level replacement in legacy SDI designs without layout modification, provided the new device's enhanced 3G-SDI performance meets system requirements.
LMH0302SQX/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:
- Professional Video
- Standards:
- DVB-ASI, SMPTE
- Control Interface:
- Serial
- Voltage - Supply:
- 3.13V ~ 3.46V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-WQFN (4x4)
LMH0302SQX/NOPB FAQ
1.How can I place an order for LMH0302SQX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH0302SQX/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 LMH0302SQX/NOPB reliable?
The price and inventory of LMH0302SQX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH0302SQX/NOPB is usually 5 days.
3.What payment methods are accepted for LMH0302SQX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH0302SQX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH0302SQX/NOPB?
LMH0302SQX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH0302SQX/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 LMH0302SQX/NOPB?
For technical support, including LMH0302SQX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH0302SQX/NOPB requirements.
6.How does Aetrix verify that LMH0302SQX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH0302SQX/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 LMH0302SQX/NOPB meets industry standards.
7.What is the process for return or replacement of LMH0302SQX/NOPB?
All LMH0302SQX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH0302SQX/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 LMH0302SQX/NOPB part is unused and in its original packaging.
Return procedure for LMH0302SQX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMH0302SQX/NOPB Tags
-
HDMI2C1-6C1
STMicroelectronics
-
ADA4430-1YKSZ-R7
Analog Devices Inc.
-
LM1881MX/NOPB
Texas Instruments
-
SN75DP130SSRGZR
Texas Instruments
-
EQCO30T5.2
Microchip Technology
-
LMH1980MM/NOPB
Texas Instruments
-
EQCO30R5.D
Microchip Technology
-
SII9022ACNU
Lattice Semiconductor Corporation
-
SN65DP159RGZR
Texas Instruments
-
SN65DP159RSBR
Texas Instruments
-
SN65DP141RLJR
Texas Instruments
-
LMH0303SQ/NOPB
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
