Catalog
12G UHD-SDI dual cable driver
Key Features
• Supports ST-2082-1 (12G), ST-2081-1 (6G), ST-424 (3G), ST-292 (HD), and ST-259 (SD)Compatible with DVB-ASI and AES10 (MADI)Dual differential output cable driversOn-chip 75-Ω termination and return loss compensation networkHost-side equalized 100-Ω loop-back outputProgrammable slew rate control on 75-Ω outputsProgrammable pre-emphasis and output amplitude on 75-Ω outputsProgrammable de-emphasis and output amplitude on 100-Ω outputPolarity inversion on 75-Ω and 100-Ω outputsAutomatic power save in absence of input signalPower consumption: 25 mW (Typical)Power-down control through ENABLE pinSingle 2.5-V supplyPower consumption: 200 mW (typical)Programmable through pins, SPI, or SMBus interface–40°C to +85°C operating temperature range5-mm × 5-mm, 32-pin WQFN packageSupports ST-2082-1 (12G), ST-2081-1 (6G), ST-424 (3G), ST-292 (HD), and ST-259 (SD)Compatible with DVB-ASI and AES10 (MADI)Dual differential output cable driversOn-chip 75-Ω termination and return loss compensation networkHost-side equalized 100-Ω loop-back outputProgrammable slew rate control on 75-Ω outputsProgrammable pre-emphasis and output amplitude on 75-Ω outputsProgrammable de-emphasis and output amplitude on 100-Ω outputPolarity inversion on 75-Ω and 100-Ω outputsAutomatic power save in absence of input signalPower consumption: 25 mW (Typical)Power-down control through ENABLE pinSingle 2.5-V supplyPower consumption: 200 mW (typical)Programmable through pins, SPI, or SMBus interface–40°C to +85°C operating temperature range5-mm × 5-mm, 32-pin WQFN package
Description
AI
LMH1208 device is a 12G UHD-SDI low power dual output cable driver. It supports SMPTE video rates up to 11.88 Gbps, enabling UHD video for 4K/8K applications. The additional equalized 100-Ω driver output on the host-side can be used for monitoring or signal distribution purposes.
The programmable PCB input equalizer provides high frequency boost to reduce inter symbol interference (ISI) induced by PCB board trace. The integrated 75-Ω termination and return loss network at both cable driver outputs facilitate overall system design in meeting stringent SMPTE return loss requirements.
Input Signal Detect determines the presence of a valid signal at the input of the cable driver. This sensing feature may be used to alert the user of a system fault and activate a Power Save Mode, reducing the power consumption of the cable driver. The LMH1208 provides selectable slew rates for data rates up to 11.88 Gbps. The output slew rate and amplitude can be controlled by pin, SPI, or SMBus control.
The LMH1208 is powered from a single 2.5-V supply. It is offered in a small footprint 5 mm × 5 mm 32-pin WQFN package. The LMH1208 is pin compatible with the LMH1228 (12G Dual Cable Driver with Integrated Reclocker).
LMH1208 device is a 12G UHD-SDI low power dual output cable driver. It supports SMPTE video rates up to 11.88 Gbps, enabling UHD video for 4K/8K applications. The additional equalized 100-Ω driver output on the host-side can be used for monitoring or signal distribution purposes.
The programmable PCB input equalizer provides high frequency boost to reduce inter symbol interference (ISI) induced by PCB board trace. The integrated 75-Ω termination and return loss network at both cable driver outputs facilitate overall system design in meeting stringent SMPTE return loss requirements.
Input Signal Detect determines the presence of a valid signal at the input of the cable driver. This sensing feature may be used to alert the user of a system fault and activate a Power Save Mode, reducing the power consumption of the cable driver. The LMH1208 provides selectable slew rates for data rates up to 11.88 Gbps. The output slew rate and amplitude can be controlled by pin, SPI, or SMBus control.
The LMH1208 is powered from a single 2.5-V supply. It is offered in a small footprint 5 mm × 5 mm 32-pin WQFN package. The LMH1208 is pin compatible with the LMH1228 (12G Dual Cable Driver with Integrated Reclocker).
