3日电视报价 超值40吋大屏骤降至2832元
　　今天是日周三，今天北京地区高温达36度，各位读者要注意防暑降温。就像天气一样，市场同样竞争火热。那么电视市场中有哪些产品降价，有哪些颇具卖点的产品推荐，打算购买电视的读者不妨可以来看看。好了，首先我们还是先来看看今天值得关注的新闻。
LED平板电视销量排名：海信创维康佳排前三
　　夏季彩电销售进入淡季，根据奥维咨询发布的市场监测数据显示，2013年第25周国内LED平板电视销量排名情况再次发生变化，海信、创维、康佳名列三甲，TCL、长虹紧随其后。 为期一年的家电节能补贴政策截止到今年5月31日正式结束，对于家电产业来说是个不小的冲击，尤其对于彩电行业而言，政策结束以及销售淡季的接踵而至成为需要投入精力人力妥善处理的大问题。根据奥维咨询发布的最新市场监测数据表现，2013年第25周国内LED平板电视品牌销量排行海信、创维、康佳、TCL、长虹位列前五位置，同为国产品牌的国内大厂海尔未能入围，其余入围外资品牌当中三星以7.3%暂居排行第六位，索尼、夏普分别以6.5%、4.9%排名第七第八，周销售排名最后两位则由三洋以及新上榜的飞利浦抢占。
　　■ 报价
　　今日降价机型&东芝32CL300C
东芝32CL300C液晶电视
　　今天市场中，价格变化明显。东芝32CL300C这款电视在一号店中出现了巨幅下跌，从2399元降至1999元，降幅高达500元之多。这款电视搭载了东芝多项先进技术，画质表现出色。
全新REGZA高画质引擎
　　东芝32CL300C液晶电视采用基于东芝半导体开发的全新REGZA高画质引擎，可以大幅改善液晶电视画面的细节、色彩、锐度和对比度等表现力，获得更加出色的画质。配上超窄边框设计，更显宽阔的视野。
东芝32CL300C液晶电视
　　在音质方面，这款带有经典的火箭炮系列音效系统，支持杜比数字音效，有着超高编码效率，可以全面支持5.1声道环绕立体声，配合高品质分离式多声道音频，让用户在家中也能震撼的高保真环绕效果。
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排行文章标题久网 数字电视机顶盒 FM DAB T DVB USB R820T RTL2832U 强力后继者新版 E4000 SDR 家电影音周边配件 广东广州 www.
FM DAB T DVB USB R820T RTL2832U 强力后继者新版 E4000 SDR
久网 数字电视机顶盒 FM DAB T DVB USB R820T RTL2832U 强力后继者新版 E4000 SDR
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久网 数字电视机顶盒 FM DAB T DVB USB R820T RTL2832U 强力后继者新版 E4000 SDR
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久网:数字电视机顶盒FM DAB T DVB USB R820T RTL2832U 强力后继者新版 E4000 SDR
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FM DAB T DVB USB R820T RTL2832U 强力后继者新版 E4000 SDR
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FM DAB T DVB USB R820T RTL2832U 强力后继者新版 E4000 SDR
推荐：工艺再升级，做锡孔，整电路，再获国际公司认可，再获oem订单，誓做最好的usb dvbt，最好的r820t！质量更稳定，信号更强大！SDR E4000强力后继者新版RTL2832U+R820T USB DVB-T DAB FM
软件无线电 标配 dab+fm+dvb-t天线，信号更强，更多dab，fm电台（深圳实测一般情况下至少14个电台，好的地方几十个）。。。新品上市享受旧款同样优惠格活动！
RTL2832U & R820T Tuner, MCX Input. Low-Cost Software Defined Radio Compatible with Many SDR Software PackagesI did a little informal testing between the two sticks using SDR Sharp using the supplied whip antennas. These tests were just to take a look at the real world performance between the chipsets on some commonly used frequency range. I am sure that at some point someone will do some more accurate testing, but these real world listening tests will at least give you a rough idea of the differences between the two DVB-T sticks. Here is a synopsis of the results.FM Broadcast BandThe E4000 seemed to be noticeably more sensitive in this area. The R820T did fairly well also, but the E4000 definitely did a better job with very weak signals. This might make the E4000 a better candidate for use with a HF converter since most of the inexpensive ones available
convert HF to the FM band on the RTL2832U sticks.AirBandBoth sticks exhibit a lot of susceptibility to RFI in this band in my environment. Both failed to pick up a weak ASOS signal at 132.875MHz that I can usually receive on most scanners with a whip antenna. Both sticks will do much better with an external antenna and both will receive stronger nearby aircraft signals easily with the whip. Overall the two sticks were fairly close in performance with a tiny edge going to the R820T.NOAA Weather BandBoth sticks were able to receive the local NOAA
weather broadcast at 162.400MHz with their whip antennas with no problems. Again the R820T was slightly stronger.800 MHz TrunkingThis is where the R820T really began to become noticeably more sensitive. While the E4000 could receive the same signals, the R820T signals were noticeably stronger and clearer.1090MHz ADS-B Aircraft Navigation SignalsHere the R820T totally &wipes the floor& with the E4000. ADS-B signals were tremendously better with the R820T. This makes the R820T a much better choice to use as an inexpensive ADS-B receiver with gr-air-modes.10 Meter Amateur Radio BandThe E4000 cant go here, but the R820T can. Actually the R820T can do a fairly good job with signals here. However, the R820T is not going to compete with a competent HF radio. Just consider it as a &bonus&.At the the end of the day, I would have to declare the R820T the victor in this shootout, if you are willing to give up a little performance tradeoff in the FM Broadcast band. The R820T appears to become a tad more sensitive starting around 160MHz with larger gains the higher you go. The R820T seems much better suited for monitoring higher frequency signals such as 800MHz trunking systems and most definitely ADS-B. Also you do get additional coverage from 24MHz to 30MHz.rtl2832u和r820t调谐器，MCX输入。低成本软件的定义很多SDR软件兼容的无线电我也使用SDR锋利的使用提供的鞭天线两杆之间的一个非正式的测试。这些测试是将一些常用的频率范围之间的芯片组的真实世界的性能一看。我相信在某一点上会有人做一些更准确的测试，但是这些现实世界的听力测试至少会给你两个DVB-T的区别一个粗略的棍子。这是一个结果的概要。调频广播频段该E4000似乎在这方面明显更敏感。该r820t做得相当好，但E4000的确与非常微弱的信号，一个更好的工作。这可能使E4000使用更好的候选人有一个高频变换器由于大多数可用的便宜的转换HF对rtl2832u FM带棒。airband两条具有很大的敏感性在我的环境在这一频段的射频干扰。既没有拿起微弱信号132.875mhz ASOS我通常在大多数鞭状天线扫描器接收。两个棍棒将与外部天线都做得更好，会收到很容易用鞭子附近飞机的强信号。两个棍棒在整体性能相当密切的与一个小的边缘去r820t。NOAA天气波段两支能够在没有问题，他们162.400mhz鞭天线接收当地气象广播。再r820t略强。800兆赫集群这就是r820t真的开始变得明显更敏感。而E4000可以获得相同的信号，信号的r820t明显更强大和更清晰的。1090MHz本ADS-B的飞机导航信号这里的r820t完全擦地板&与E4000。ADS-B信号与r820t非常好。这使得r820t使用作为一种廉的ADS-B接收机GR空气模式更好的选择。10米的业余无线电波段该E4000不能在这里，但r820t可以。其实r820t可以与信号在这里会很好。然而，在r820t不会与主管的高频无线电竞争。只是把它作为一个&奖金&。在一天结束的时候，我将不得不宣布r820t在枪战的胜利，如果你愿意放弃在FM广播带一点点的性能折衷。该r820t似乎成为一个敏感的孩子开始在更大的收益就越高160MHz。该r820t似乎更适合更高频率的信号，例如800MHz集群系统和最肯定的ADS-B还你从24MHz～30MHz得到额外的覆盖监测。 ：高品质MCX 和 IEC转接头纯铜芯USB DVB-T 天线转接口链接：/item.htm?spm=a1z10.5.w03.77.doClTE&id= 本店是深圳华竞数码科技有限公司的展实体店的网店，深圳华竞数码科技有限公司（企业诚信通会员 ；公司网站：）是一家集设计,加工,为一体的加工贸易公司,拥有多年的产经验,工厂位于宝安区,负责加工以及国内，专业生产DVB标清高清数字电视机顶盒和数码产品周边配件 等。展地址和工厂参观咨询&电话咨询电话: -688杨先生QQ: 市场部展地址:深圳市国际电子城（B区）外贸批发市场四楼 （注：赛格广场后面，中电停车场对面）公司工厂：宝安区河东工业区4栋FM DAB T DVB USB R820T RTL2832U 强力后继者新版 E4000 SDR广东广州地区
家电影音周边配件 数字电视机顶盒 FM DAB T DVB USB R820T RTL2832U 强力后继者新版 E4000 SDR[广东广州地区]TPS2832 | 半桥驱动器 | MOSFET 和 IGBT 栅极驱动器 | 描述与参数
|C0|0|0|0|2|0|9
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同向快速同步降压 MOSFET 驱动器
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The TPS2832 and TPS2833 are MOSFET drivers for synchronous-buck power stages. These devices are ideal for designing a high-performance power supply using switching controllers that do not have MOSFET drivers. The drivers are designed to deliver 2.4-A peak currents into large capacitive loads. The high-side driver can be configured as a ground-reference driver or as a floating bootstrap driver. An adaptive dead-time control circuit eliminates shoot-through currents through the main power FETs during switching transitions and provides high efficiency for the buck regulator. The TPS2832 has a noninverting input. The TPS2833 has an inverting input. The TPS2832/33 drivers, available in 8-terminal SOIC packages, operate over a junction temperature range of \x9640&C to 125&C.
Floating Bootstrap or Ground-Reference High-Side Driver Adaptive Dead-Time Control 50-ns Max Rise/Fall Times and 100-ns Max Propagation Delay \x96 3.3-nF Load Ideal for High-Current Single or Multiphase Power Supplies 2.4-A Typical Peak Output Current 4.5-V to 15-V Supply Voltage Range Internal Schottky Bootstrap Diode Low Supply Current....3-mA Typical \x9640&C to 125&C Operating Virtual Junction Temperature Available in SOIC Package
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Number of Channels
Power Switch
Bus Voltage
Peak Output Current
Prop Delay
Input Threshold
Channel Input Logic
Negative Voltage Handling at HS Pin
Special Features
Package Group
Approx. Price (US$)
Dead Time Control,Synchronous Rectification
1.00 | 1ku
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