Datenblatt-Suchmaschine für elektronische Bauteile |
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GS4900BCNE3 Datenblatt(PDF) 4 Page - Gennum Corporation |
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GS4900BCNE3 Datenblatt(HTML) 4 Page - Gennum Corporation |
4 / 95 page GS4901B/GS4900B Preliminary Data Sheet 37703 - 0 April 2006 4 of 95 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 |
Ähnliche Teilenummer - GS4900BCNE3 |
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Ähnliche Beschreibung - GS4900BCNE3 |
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