データシートサーチシステム |
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LM1267 データシート(PDF) 9 Page - National Semiconductor (TI) |
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LM1267 データシート(HTML) 9 Page - National Semiconductor (TI) |
9 / 20 page Pin Descriptions (Continued) Pin No. Pin Name Schematic Description 5 6 7 Red Video In Green Video In Blue Video In Video inputs. These inputs must be AC coupled with a 4.7 nF cap. DC restoration is done at these inputs. A series resistor of about 33 Ω and external ESD protection diodes should also be used for ESD protection. 8 Analog Ground Ground Pin for the analog circuits of the LM1267. 9V CC Power supply pin for LM1267. 10 V refRext Sets the internal current sources through a 10 k Ω 1% external resistor. Resistor value and accuracy is critical for optimum operation of the LM1267. 11 SDA The I 2C data line. A pull-up resistor of about 2k Ω should be connected between this pin and +5V. A 300 Ω resistor should be connected in series with the data line for protection against arcing. 12 SCL The I 2C Clock line. A pull-up resistor of about 2 k Ω should be connected between this pin and +5V. A 300 Ω resistor should be connected in series with the clock line for protection against arcing. 13 14 15 16 DAC4 DAC3 DAC2 DAC1 DAC outputs for cathode cut-off adjustments and brightness control. DAC 4 can be set to change the outputs of the other three DACs, acting as the brightness control. The DACs are set through the I 2C bus. 17 Digital Ground Ground Pin for the digital circuits of the LM1267. www.national.com 9 |
同様の部品番号 - LM1267 |
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同様の説明 - LM1267 |
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