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NTE7150 Datasheet(PDF) 6 Page - NTE Electronics |
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NTE7150 Datasheet(HTML) 6 Page - NTE Electronics |
6 / 8 page AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified) Parameter Test Conditions Min Typ Max Unit TEXT/Matrix Section (Cont’d) Blanking Output Voltage Measure output voltage from Pin18 during blanking period. 0.3 0.5 0.8 V Vertical Blanking Period 50Hz Measure vertical blanking period width. – 23 – H 60Hz – 18 – H Horizontal Blanking Threshold Voltage Measure lowest voltage at Pin9 which causes horizontal blanking. 0.5 0.7 1.0 V Horizontal Blanking Delay Time Measure blanking–on delay time. 0.0 0.1 0.3 µs Measure blanking–off delay time. 0.1 0.3 0.5 µs External Blanking Threshold Current Measure minimum input current to Pin64 which causes blanking. 300 330 400 µA Mute Output Voltage 1.7 2.0 2.3 V Mute Switch Threshold Voltage 4.7 5.0 5.3 V External TEXT Input Dynamic Range Measure input dynamic range on Pin22, Pin23, and Pin24. 1.0 1.5 – VP–P External TEXT Contrast Control Maximum Gain Input signal 3 (Vim = 0.1VP–P) to TP24. Measure 15 16 18 dB Center Gain output amplitude at Pin18 when data = 7FH, 40H, and 00H as V . Gain = 20log (V /0.1). 12.0 13.5 15.0 dB Minimum Gain 40H, and 00H as V18. Gain = 20log (V18/0.1). –7 –4 –2 dB External TEXT Rising Time Load capacitance is 10pF. Adjust contrast data 10 25 50 ns External TEXT Falling Time so that RGB output amplitude is 1VP–P. 10 25 50 ns External TEXT Output Delay Time 10 25 50 ns External TEXT Switching Delay Time 10 25 50 ns TV/TEXT Switching Voltage 0.7 1.0 1.3 V Crosstalk TV → TEXT –45 –55 – dB TEXT → TV –45 –55 – dB External TEXT Bandwidth 12 15 20 MHz All White Mode Output Voltage R Output Select all–white mode by bus. Measure R, G, 3.6 3.8 4.0 VP–P G Output and B amplitudes during trace period. 3.5 3.7 3.9 VP–P B Output 3.6 3.8 4.0 VP–P Sync. Section Horizontal Sync Separation Level 30 35 40 % Sync Separation Input Sensitivity 10 18 25 µA Horizontal Free Running Frequency measure H.out frequency when no sync input and no FBP input. 15.50 15.62 15.75 kHz AFC1 Pull–In Range High Center frequency is fH = 15.625Hz 500 750 1000 Hz Low –500 –750 –1000 Hz Horizontal Oscillation Frequency Control Range 14.70 15.62 16.90 Hz Horizontal Oscillation Frequency Control Sensitivity 2.0 2.3 2.6 kHz/V AFC1 Detection Current 250 350 450 µA |
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