1FEATURES
2• SMPTE 424M, SMPTE 292M, SMPTE 344M, and
SMPTE 259M Compliant
• Data Rates 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: 230 mW in SD
Mode and 275 mW in HD Mode
• Power Save Mode Typical Power
Consumption: 4 mW
• Single 3.3V Supply Operation
• Differential Input
• Dual Complementary 75Ω Outputs
• Selectable Slew Rate
• Industrial Temperature Range: −40°C to +85°C
• 16-Pin WQFN or 25-Ball CS-BGA package

APPLICATIONS
• SMPTE 424M, SMPTE 292M, SMPTE 344M, and
SMPTE 259M Serial Digital Interfaces
• Digital Video Routers and Switches
• Distribution Amplifiers

DESCRIPTION
The LMH0307 3 Gbps HD/SD SDI Dual Output Cable
Driver with Cable Detect is designed for use in
SMPTE 424M, SMPTE 292M, SMPTE 344M, and
SMPTE 259M serial digital video applications. The
LMH0307 implements two complementary output
drivers and drives 75Ω transmission lines (Belden
1694A, Belden 8281, or equivalent) at data rates up
to 2.97 Gbps.
The LMH0307 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 cable driver's power consumption to 4 mW. These
features are accessible via an SMBus interface.
The LMH0307 provides two selectable slew rates for
SMPTE 259M and SMPTE 424M / 292M compliance.
The output amplitude is adjustable ±10% in 5 mV
steps via the SMBus.
The LMH0307 is powered from a single 3.3V supply.
Power consumption is typically 230 mW in SD mode
and 275 mW in HD mode. The LMH0307 is available
in two space-saving packages: a 4 x 4 mm 16-pin
WQFN and even more space-efficient 3 x 3 mm 25-
ball CS-BGA package.