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LMH0346MH PDF预览

LMH0346MH

更新时间: 2024-02-16 04:45:31
品牌 Logo 应用领域
美国国家半导体 - NSC 时钟
页数 文件大小 规格书
14页 307K
描述
3Gbps HD/SD SDI Reclocker with Dual Differential Outputs

LMH0346MH 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Obsolete包装说明:QCCN, LCC24,.16X.2,20
Reach Compliance Code:compliantECCN代码:5A991.B.1
HTS代码:8542.39.00.01风险等级:5.59
商用集成电路类型:CONSUMER CIRCUITJESD-30 代码:R-PQCC-N24
JESD-609代码:e3湿度敏感等级:3
端子数量:24最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:QCCN封装等效代码:LCC24,.16X.2,20
封装形状:RECTANGULAR封装形式:CHIP CARRIER
峰值回流温度(摄氏度):260电源:3.3 V
认证状态:Not Qualified子类别:Other Consumer ICs
最大压摆率:126 mA表面贴装:YES
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
Base Number Matches:1

LMH0346MH 数据手册

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PRELIMINARY  
April 2007  
LMH0346  
3Gbps HD/SD SDI Reclocker with Dual Differential Outputs  
General Description  
Features  
The LMH0346 3Gbps HD/SD SDI Reclocker retimes serial  
digital video data conforming to the SMPTE 424M, SMPTE  
292M, and SMPTE 259M (C) standards. The LMH0346 op-  
erates at serial data rates of 270 Mbps, 1.483 Gbps, 1.485  
Gbps, 2.967 Gbps, and 2.97 Gbps. The LMH0346 supports  
DVB-ASI operation at 270 Mbps.  
Supports SMPTE 424M, SMPTE 292M, and SMPTE  
259M (C) serial digital video standards  
Supports 270 Mbps, 1.483 Gbps, 1.485 Gbps, 2.967  
Gbps, and 2.97 Gbps serial data rate operation  
Supports DVB-ASI at 270 Mbps  
Single 3.3V supply operation  
The LMH0346 automatically detects the incoming data rate  
and adjusts itself to retime the incoming data to suppress ac-  
cumulated jitter. The LMH0346 recovers the serial data-rate  
clock and optionally provides it as an output. The LMH0346  
has two differential serial data outputs; the second output may  
be selected as a low-jitter, data-rate clock output (DDR clock  
at 3Gbps). 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  
clock outputs are differential LVPECL compatible. The CML  
serial data and serial clock outputs are suitable for driving  
100differentially terminated networks. The control logic in-  
puts and outputs are LVCMOS compatible.  
370 mW typical power consumption  
Two differential, reclocked outputs  
Choice of second reclocked output or low-jitter,  
differential, data-rate clock output (DDR clock at 3Gbps)  
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  
The LMH0346 is powered from a single 3.3V supply. Power  
dissipation is typically 370 mW. The device is housed in a 20-  
pin e-TSSOP package.  
LVCMOS control inputs and indicator outputs  
20-Pin e-TSSOP package  
Industrial temperature range: -40°C to +85°C  
Footprint compatible with the LMH0046  
Applications  
SDTV/HDTV and 3Gbps serial digital video interfaces for:  
Digital video routers and switchers  
Digital video processing and editing equipment  
DVB-ASI equipment  
Video standards and format converters  
Typical Application  
20215001  
© 2007 National Semiconductor Corporation  
202150  
www.national.com  

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