データシートサーチシステム |
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LM1238 データシート(PDF) 6 Page - National Semiconductor (TI) |
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LM1238 データシート(HTML) 6 Page - National Semiconductor (TI) |
6 / 24 page Typical Performance Characteristics V CC = 5V, TA = 25˚C unless otherwise specified SYSTEM INTERFACE SIGNALS The Horizontal and Vertical Blanking and the Clamping input signals are important for proper functionality of the LM1238. Both blanking inputs must be present for OSD synchroniza- tion. In addition, the Horizontal blanking input also assists in setting the proper cathode black level, along with the Clamp- ing pulse. The Vertical blanking input initiates a blanking level at the LM1238 outputs which is programmable from 3 to 127 lines (we recommend at least 10). This can be op- tionally disabled so there is no vertical blanking. 20038754 FIGURE 2. Logic Horizontal Blanking 20038755 FIGURE 3. Logic Vertical Blanking 20038756 FIGURE 4. Deflection Horizonal Blanking 20038757 FIGURE 5. Deflection Vertical Blanking 20038758 FIGURE 6. Logic Clamp Pulse www.national.com 6 |
同様の部品番号 - LM1238 |
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同様の説明 - LM1238 |
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