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GS1881 Folha de dados(PDF) 4 Page - Gennum Corporation |
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GS1881 Folha de dados(HTML) 4 Page - Gennum Corporation |
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4 / 29 page  GS1881, GS4881, GS4981 Monolithic Video Sync Separators Data Sheet 6926 - 5 November 2009 4 of 29 Proprietary & Confidential 2. Electrical Characteristics 2.1 GS1881 Electrical Characteristics Table 2-1 shows the electrical characteristics of the GS1881 where conditions are VCC = 5V, RSET = 680kΩ, TA =25°C, unless otherwise shown. Table 2-1: GS1881 Electrical Characteristics Parameter Conditions Min Typ Max Units Supply Voltage – 4.5 5 13.2 V Supply Current Outputs at Logic 1 VCC = 5V – 4.6 30 mA VCC = 12V – 5.0 6.5 mA Video Input (Pin 2) (a) Signal Level VCC = 5V 0.5 – 4 Vp-p (b) Clamp Current Charge 500 650 850 μA Discharge - normal 9 11 13 μA Discharge - Nosync flag raised 65 95 115 μA (c) Delay to raising of Nosync flag Video input held high 64 95 130 μs (d) Sync Tip Clamp Voltage – – 1.55 – V Sync Slice Level Relative to sync tip clamp voltage 70 77 84 mV RSET Pin Reference Voltage (Pin 6) See Note 1. 1.14 1.24 1.34 V Composite Sync Out (Pin 1) See Note 2. CL = 15p 40 60 80 ns Delay from Video Back Porch Pulse Out (Pin 5) (a) Delay from Rising Edge of Sync CL = 15p 400 500 650 ns (b) Pulse Width 2.0 2.5 3.2 μs Vertical Sync Out (Pin 3) (a) Pulse Width Serrations during vertical interval 197.7 197.7 197.7 μs (b) Default Starting Time No serrations during vertical interval 48 65 82 μs Horizontal Scan Rate Modified RSET 15 – 130 kHz Logic Outputs (a) VOH Ι OH = 40μAVCC = 5V 4.2 4.6 – V VCC = 12V 11.2 11.6 – V Ι OH = 1.6mA VCC = 5V 2.4 3.4 – V VCC = 12V 9.4 10.4 – V |
Nº de peça semelhante - GS1881_09 |
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Descrição semelhante - GS1881_09 |
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