LMH0303 - 具有电缆检测的 3 Gbps HD/SD SDI 电缆驱动器

LMH0303是TI德州仪器公司的一款串行数字接口产品，LMH0303是具有电缆检测的 3 Gbps HD/SD SDI 电缆驱动器，本站介绍了LMH0303的封装应用图解、特点和优点、功能等，并给出了与LMH0303相关的TI元器件型号供参考。

LMH0303 - 具有电缆检测的 3 Gbps HD/SD SDI 电缆驱动器 - 串行数字接口 - 视频：广播和专业 - 德州仪器

产品描述

The LMH0303 3 Gbps HD/SD SDI Cable Driver with Cable Detect is designed for use in SMPTE 424M, SMPTE 292M, SMPTE 344M, and SMPTE 259M serial digital video applications. The LMH0303 drives 75? 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 cable driver's power consumption to 4 mW. These features are accessible via an SMBus interface.

The LMH0303 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 LMH0303 is powered from a single 3.3V 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.

产品特性

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: 130 mW in SD Mode and 155 mW in HD Mode
Power Save Mode Typical Power Consumption: 4 mW
Single 3.3V Supply Operation
Differential Input
75? Differential Output
Selectable Slew Rate
Industrial Temperature Range: −40°C to +85°C
16-pin WQFN Package
Footprint Compatible With the LMH0302

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