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CXA1785 Folha de dados(PDF) 10 Page - Sony Corporation |
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CXA1785 Folha de dados(HTML) 10 Page - Sony Corporation |
10 / 29 page —10— CXA1785AR Electrical Characteristics AC Characteristics Unless otherwise specified, VCC1 = 4.5 V, VCC2 = 12 V, VEE = GND, Ta = 25°C, SW5 →a, SW8→a, SW9→b, SW10 →b, SW12A→a, SW12B→ON, SW13→b, SW20→OFF, SW22→OFF, SW24→OFF SW26→OFF, SW27 →OFF, SW28→OFF, SW31→OFF, SW33→b, SW34→OFF, SW35→OFF, SW38→a, SW46→OFF. V5 = 0 V, V6 = 2.6 V, V13 = 2.7 V, V30 = 3.5 V, V32 = 2.1 V, V42 = 2.25 V, V46 = 1.5 V, V48 = 2.5 V, and VR1=6.8 k Ω (C): input SG11, (D): input SG7b (4.5 VP-P) Note) Adjust the burst cleaning coil so that the amplitude of the color difference signal is the same at each 1H of TP20 when SG5 (4.43 MHz, burst/chroma phase = ±135°) is input to (B) with a standard sample. V42 = 1.2 V, input SG8 (-15 dB) to (A). Measure the ratio between the output amplitude (white-black) and input amplitude at TP22. Input SG8 (-14 dB) to (A). V1, V0, and V2 are the output amplitude (white-black) at TP22 when V42 is changed to 1.2 V, 2.25 V and 3.3 V. Gct1 = 20log (V1/V0) Gct2 = 20log (V2/V0) Input SG1 (0 dB) to (A) and adjust V42 so that TP22 output amplitude (white-black) is 4 V when APL = 50 % Va1 and Va2 are the amplitude at TP22 when APL = 10 % and 90 %. Input SG1 (0 dB) to (A). Vad1, Vad2, and Vad3 are the voltage at TP47 when APL = 10 %, 50 %, and 90 %. SW5 →b, SW46→ON Input SG2 (100 kHz) to (A) and adjust V42 so that the amplitude of the sine wave at TP22 is 0.5 VP-P. Gp1 and Gp2 are the amount of change in the output amplitude at TP22 when SG2 is 2.1 MHz and V48 = 2 V and 3 V. SW5 →b, SW13→a, SW46→ON Input SG2 (100 kHz) to (A) and adjust V42 so that the amplitude of the sine wave at TP22 is 0.5 VP-P. Gp3 and Gp4 are the amount of change in the output amplitude at TP22 when SG2 is 2.4 MHz and V48 = 2 V and 3 V. Gmax Gct1 Gct2 Va1 Va2 Vad1 Vad2 Vad3 Gp1 Gp2 Gp3 Gp4 Video Block Video maximum gain Amount of contrast ad- justment gain variation (1) Amount of contrast ad- justment gain variation (2) AGC amplitude char- acteristics AGC detection output Amount of image qual- ity adjustment variation (composite video input, NTSC) Amount of image qual- ity adjustment variation (composite video input, PAL) 33 36 39 3.0 5.5 dB - 15 - 11 4.6 5.6 6.6 VP-P 2.0 2.5 3.0 2.7 3.0 3.4 1.1 1.7 2.3 V 0.1 0.5 0.9 6.0 9.0 - 4.0 - 1.0 dB 6.0 9.0 - 4.0 - 1.0 Item Symbol Conditions Min. Typ. Max. Unit |
Nº de peça semelhante - CXA1785 |
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Descrição semelhante - CXA1785 |
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