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LM1279A Folha de dados(PDF) 7 Page - Texas Instruments |
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LM1279A Folha de dados(HTML) 7 Page - Texas Instruments |
7 / 15 page Pin Descriptions Pin No. Pin Name Schematic Description 1 Red OSD Input These are standard TTL inputs. An OSD signal at any of the three pins will automatically switch the pre-amp into the OSD mode. 7 colors, including white, are available. 19 Blue OSD Input 20 Green OSD Input 2V CC1 Power supply pin (excluding output stage) 3 Red Video In Video inputs. These inputs must be AC Coupled with a minimum ofa1µF cap, 10 µF is preferred. A series resistor of about 33 Ω must be used for ESD protection. 5 Green Video In 8 Blue Video In 4 Red Clamp Cap The external clamp cap is charged and discharged to the correction voltage needed for DC restoration. 0.1 µF is the recommended value. 7 Green Clamp Cap 9 Blue Clamp Cap 6 Ground Ground pin. 10 Contrast Contrast control pin: 4V - no attenuation 0V - over 40 dB attenuation Drive control pins: 4V - no attenuation 0V - 20 dB attenuation 12 Blue Drive 14 Green Drive 17 Red Drive 11 Clamp Pulse The clamp pulse activates the DC restoration circuitry. A 3.6V input is required to activate the clamp pulse. 13 Blue Video Out Video output. For proper black level the output must drive 390 Ω impedance. 15 Green Video Out 18 Red Video Out www.national.com 6 |
Nº de peça semelhante - LM1279A |
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Descrição semelhante - LM1279A |
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