LM2453TA National Semiconductor, LM2453TA Datasheet
LM2453TA
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LM2453TA Summary of contents
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... Integrated 120V supply and G1 vertical blank drive circuit Applications vertical P-P n 1280 x 1024 Resolution displays refresh n Pixel clock frequencies up to 135 MHz n Monitors requiring horizontal video blanking Package Pinout DS101302-1 FIGURE 2. LM2453 Package Pinout DS101302 September 2000 DS101302-2 Order Number LM2453TA www.national.com ...
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Special Features MULTIPLEXED VIDEO SIGNAL INPUT The LM2453 accepts the multiplexed video signal from the LM1253 which contains the video signal and DC clamp level. This multiplexed signal is shown in Figure was designed to simplify the ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. 80V Voltage, V CC1 120V Supply V CC2 Bias Voltage Input Voltage Input Voltage, V BLANK BLANK Storage Temperature Range, T STG Lead Temperature < ...
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DRIVER Test Circuit (Continued) FIGURE 5. CRT Driver V FIGURE 6. CRT Driver Speed vs. Temperature FIGURE 7. CRT Driver Transient Response www.national.com DS101302 FIGURE 9. CRT Driver Speed vs. Offset DS101302-6 DS101302-7 4 DS101302-8 FIGURE ...
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DC CLAMP Electrical Characteristic Targets and Limits Unless otherwise noted +80V, V CC1 HEATSINK MUST BE GROUNDED. Symbol Parameter I V Supply Current CC2 CC2 V DC Output Voltage OUT A Typical DC Voltage Gain VTYP LE Typical ...
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... Figures 4, 11, 13 show the typical test circuits for evaluation of the LM2453. Application Hints INTRODUCTION National Semiconductor (NSC) is committed to provide ap- plication information that assists our customers in obtaining the best performance possible from our products. The follow- ing information is provided in order to support this commit- ment ...
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... MHz pixel clock frequencies the first device in a new product family that is being developed by National Semiconductor. Since this device is significantly dif- ferent from all our previous CRT drivers very important to read all the application information supplied in this docu- ment ...
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Application Hints (Continued) Effect of Load Capacitance Figure 10 shows the effect of increased load capacitance on the speed of the device. This demonstrates the importance of knowing the load capacitance in the application im- portant to note ...
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Application Hints (Continued) PC Board Layout Considerations For optimum performance, an adequate ground plane, isola- tion between channels, good supply bypassing and minimiz- ing unwanted feedback are necessary. Also, the length of the signal traces from the preamplifier to the ...
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Application Hints (Continued) FIGURE 17. LM1253A/2453 Reference Design Schematic www.national.com 10 DS101302-15 ...
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Application Hints (Continued) FIGURE 18. LM1253A/2453 Reference Design Schematic (continued) 11 DS101302-16 www.national.com ...
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Application Hints (Continued) FIGURE 19. NSC LM1253A/2453 Reference Design Layout www.national.com 12 DS101302-17 ...
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Application Hints (Continued) FIGURE 20. Trace Routing and Component Placement for Blue Channel Video Output. DS101302-18 13 www.national.com ...
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... National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. inches (millimeters) unless otherwise noted NS Package Number TA15A Order Number LM2453TA 2. A critical component is any component of a life support device or system whose failure to perform ...