LMH0046 - 具有双路差动输出的 HD/SD SDI 时钟恢复器

LMH0046是TI德州仪器公司的一款串行数字接口产品，LMH0046是具有双路差动输出的 HD/SD SDI 时钟恢复器，本站介绍了LMH0046的封装应用图解、特点和优点、功能等，并给出了与LMH0046相关的TI元器件型号供参考。

LMH0046 - 具有双路差动输出的 HD/SD SDI 时钟恢复器 - 串行数字接口 - 视频：广播和专业 - 德州仪器

产品描述

The LMH0046 HD/SD SDI Reclocker retimes serial digital video data conforming to the SMPTE 292M and SMPTE 259M (A & C) standards. The LMH0046 operates at serial data rates of 143 Mbps, 270 Mbps, 1.483 Gbps and 1.485 Gbps. The LMH0046 supports DVB-ASI operation at 270 Mbps.

The LMH0046 automatically detects the incoming data rate and adjusts itself to retime the incoming data to suppress accumulated jitter. The LMH0046 recovers the serial data-rate clock and optionally provides it as an output. The LMH0046 has two differential serial data outputs; the second output may be selected as a low-jitter, data-rate clock output. Controls and indicators are: serial clock or second serial data output select, manual rate select input, SD/HD rate indicator output, lock detect output, auto/manual data bypass and output mute. The serial data inputs, outputs, and serial data-rate clock outputs are differential LVPECL compatible. The CML serial data and serial data-rate clock outputs are suitable for driving 100? differentially terminated networks. The control logic inputs and outputs are LVCMOS compatible.

The LMH0046 is powered from a single 3.3V supply. Power dissipation is typically 330 mW. The device is housed in a 20-pin HTSSOP package.

产品特性

Supports SMPTE 292M and SMPTE 259M (A & C) Serial Digital Video Standards
Supports 143 Mbps, 270 Mbps, 1.483 Gbps, and 1.485 Gbps Serial Data Rate Operation
Supports DVB-ASI at 270 Mbps
Single 3.3V Supply Operation
330 mW Typical Power Consumption
Two Differential, Reclocked Outputs
Choice of Second Reclocked Output or Low-Jitter, Differential, Data-Rate Clock Output
Single 27 MHz External Crystal or Reference Clock Input
Manual Rate Select Input
SD/HD Operating Rate Indicator Output
Lock Detect Indicator Output
Output Mute Function for Data and Clock
Auto/Manual Reclocker Bypass
Differential LVPECL Compatible Serial Data Inputs and Outputs
LVCMOS Control Inputs and Indicator Outputs
20-Pin HTSSOP Package
Industrial Temperature Range: -40°C to +85°C

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