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    GS4900B 参数 Datasheet PDF下载

    GS4900B图片预览
    型号： GS4900B
    PDF下载： 下载PDF文件 查看货源
    内容描述： SD时钟和定时发生器与同步锁相 [SD Clock and Timing Generator with GENLOCK]
    分类和应用： 时钟
    文件页数/大小： 95 页 / 1369 K
    品牌： GENNUM [ GENNUM CORPORATION ]
     浏览型号GS4900B的Datasheet PDF文件第1页浏览型号GS4900B的Datasheet PDF文件第2页浏览型号GS4900B的Datasheet PDF文件第3页浏览型号GS4900B的Datasheet PDF文件第5页浏览型号GS4900B的Datasheet PDF文件第6页浏览型号GS4900B的Datasheet PDF文件第7页浏览型号GS4900B的Datasheet PDF文件第8页浏览型号GS4900B的Datasheet PDF文件第9页  
    GS4901B/GS4900B Preliminary Data Sheet
    Contents
    Key Features .................................................................................................................1
    Applications...................................................................................................................1
    Description ....................................................................................................................1
    1. Pin Out ......................................................................................................................8
    1.1 GS4901B Pin Assignment ..............................................................................8
    1.2 GS4900B Pin Assignment ..............................................................................9
    1.3 Pin Descriptions ............................................................................................10
    1.4 Pre-Programmed Recognized Video Standards ...........................................20
    1.5 Output Timing Signals ...................................................................................24
    2. Electrical Characteristics .........................................................................................28
    2.1 Absolute Maximum Ratings ..........................................................................28
    2.2 DC Electrical Characteristics ........................................................................28
    2.3 AC Electrical Characteristics .........................................................................30
    2.4 Solder Reflow Profiles ...................................................................................33
    3. Detailed Description ................................................................................................34
    3.1 Functional Overview .....................................................................................34
    3.2 Modes of Operation ......................................................................................34
    3.2.1 Genlock Mode......................................................................................35
    3.2.2 Free Run Mode....................................................................................38
    3.3 Output Timing Format Selection ...................................................................39
    3.4 Input Reference Signals ................................................................................40
    3.4.1 HSYNC, VSYNC, and FSYNC.............................................................40
    3.4.2 10FID ...................................................................................................41
    3.4.3 Automatic Polarity Recognition ............................................................41
    3.5 Reference Format Detector ..........................................................................42
    3.5.1 Horizontal and Vertical Timing Characteristic Measurements .............42
    3.5.2 Input Reference Validity.......................................................................43
    3.5.3 Behaviour on Loss and Re-acquisition of the Reference Signal..........44
    3.5.4 Allowable Frequency Drift on the Reference .......................................46
    3.6 Genlock .........................................................................................................46
    3.6.1 Adjustable Locking Time......................................................................47
    3.6.2 Adjustable Loop Bandwidth .................................................................48
    3.6.3 Locking to Digital Timing from a Deserializer ......................................51
    3.7 Clock Synthesis ............................................................................................52
    3.7.1 Video Clock Synthesis .........................................................................52
    3.7.2 Audio Clock Synthesis (GS4901B only) ..............................................53
    3.8 Video Timing Generator ................................................................................57
    3.8.1 10 Field ID Pulse .................................................................................57
    3.8.2 Audio Frame Synchronizing Pulse (GS4901B only) ............................58
    3.8.3 USER_1~4...........................................................................................59
    37703 - 0
    April 2006
    4 of 95

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