LMH0303 3 Gbps HD/SD SDI Cable Driver with Cable Detect | TI.com

LMH0303 (ACTIVE) 3 Gbps HD/SD SDI Cable Driver with Cable Detect


Recommended alternative parts

  • LMH1218  -  12G SDI Cable Driver with Integrated Reclocker
  • LMH0318  -  3G SDI Reclocker with Integrated Cable Driver
  • LMH0324  -  3G SDI Cable equalizer

Special note

See how the LMH0303 and other TI products combine to create a unique HD CCTV Camera SOLUTION


The LMH0303 device is designed for use in ST 424, ST 292, ST 344, and ST 259 serial digital video applications. The LMH0303 drives 75-Ω transmission lines (Belden 1694A, Belden 8281, or equivalent) at data rates up to 2.97 Gbps.

The LMH0303 includes intelligent sensing capabilities to improve system diagnostics. The cable detect feature senses near-end termination to determine if a cable is correctly attached to the output BNC. Input loss of signal (LOS) detects the presence of a valid signal at the input of the cable driver. These sensing features may be used to alert the user of a system fault and activate a deep power-save mode, reducing the power consumption of the cable driver to 4 mW. These features are accessible through an SMBus interface.

The LMH0303 provides two selectable slew rates for ST 259 and ST 424 or 292. The output amplitude is adjustable ±10% in 5-mV steps through the SMBus.

The LMH0303 is powered from a single 3.3-V supply. Power consumption is typically 130 mW in SD mode and 155 mW in HD mode. The LMH0303 is available in a 16-pin WQFN package.


  • Supports ST 424 (3G), 292 (HD), and 259 (SD)
  • Data Rates up to 2.97 Gbps
  • Supports DVB-ASI at 270 Mbps
  • Cable Detect on Output
  • Loss of Signal Detect at Input
  • Output Driver Power-Down Control
  • Typical Power Consumption: 130 mW in SD Mode
    and 155 mW in HD Mode
  • Typical Power Consumption of the Power-Save
    Mode: 4 mW
  • Single 3.3-V Supply Operation
  • 75-Ω Single-Ended Outputs
  • 100-Ω Differential Input
  • Selectable Slew Rate
  • Industrial Temperature Range: –40°C to 85°C
  • 16-Pin WQFN Package
  • Footprint Compatible With the LMH0302


Compare all products in SDI cable equalizers, drivers, reclockers & cross-points Email Download to Excel
Part number Order Function Supply voltage (V) Power consumption (mW) ESD HBM (kV) Data rate (Max) (Mbps) In/out count Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
LMH0303 Order now Cable driver     3.3     155     8     2970     1/1     -40 to 85     WQFN | 16     16WQFN: 16 mm2: 4 x 4 (WQFN | 16)    
LMH0307 Order now Cable driver     3.3     275     8     2970     1/2     -40 to 85     WQFN | 16
csBGA | 25    
16WQFN: 16 mm2: 4 x 4 (WQFN | 16)
25csBGA: 9 mm2: 3 x 3 (csBGA | 25)