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LM1229 データシート(PDF) 9 Page - Texas Instruments |
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LM1229 データシート(HTML) 9 Page - Texas Instruments |
9 / 28 page OBSOLETE LM1229 www.ti.com SNOSAH0D – MARCH 2005 – REVISED APRIL 2013 LM1229 Test Circuit The LM1229 RGB test circuit is shown in Figure 2. The video generator should be a clean 75 Ω source to prevent unwanted reflections from the terminations. The output waveforms should be measured with a 10X, low capacitance probe on an oscilloscope with at least 400 MHz bandwidth. The jumpers JP1 and JP2 determine the free running frequency according to Table 1. The OSD inputs are shown as analog 0.7V peak to peak. If higher level signals are available, suitable attenuation and termination should be used to achieve the proper input level. To prevent overdriving the input pins, the 1000 pF capacitors should be removed (shorted) to test the digital OSD mode. Caution—Do not apply TTL OSD input signals to the LM1229 while it is in the analog OSD mode. Figure 2. LM1229 Test Circuit Copyright © 2005–2013, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: LM1229 |
同様の部品番号 - LM1229 |
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同様の説明 - LM1229 |
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