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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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MP4680 Datenblatt(PDF) 16 Page - NXP Semiconductors |
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MP4680 Datenblatt(HTML) 16 Page - NXP Semiconductors |
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16 / 28 page  1996 Oct 25 16 Philips Semiconductors Product specification Video processor with automatic cut-off and white level control TDA4680 Automatic cut-off and white level control (pins 19 and 18); notes 9 to 11; see Fig.8 V19 permissible voltage (also during scanning period) −− VP − 1.4 V I19 output current −− −140 µA input current 150 −− µA additional input current only during warming up − 0.5 − mA V24,22,20 warming up amplitude (under I2C-bus control; sub-address 0AH) switch-on delay 1 − Vpdl − 0.7 − V V19(th) voltage threshold for picture tube cathode warming up switch-on delay 1 − 5.0 − V Vref internally controlled voltage during leakage measurement period − 3.0 − V DATA BYTE 07H FOR RED REFERENCE LEVEL, DATA BYTE 08H FOR GREEN REFERENCE LEVEL AND DATA BYTE 09H FOR BLUE REFERENCE LEVEL ∆V19 difference between VMEAS (cut-off or white level measurement voltage) and Vref 3FH (maximum VMEAS) 1.5 −− V 20H (nominal VMEAS) − 1.0 − V 00H (minimum VMEAS) −− 0.5 V I18 input current white level measurement −− 800 µA R18 internal resistance to Vref; I18 ≤ 800 µA − 100 −Ω ∆V19 white level register (measured value within tolerance range) white level measurement − 250 − mV Storage of cut-off control voltage/output clamping voltage (pins 25, 23 and 21) I21/23/25 charge and discharge currents during cut-off measurement lines − 0.3 − mA input currents of storage inputs outside measurement time −− 0.1 µA Storage of leakage information (pin 17) I17 charge and discharge currents during leakage measurement period − 0.4 − mA leakage current outside time LM −− 0.1 µA V17 voltage for reset to switch-on below −− 3.0 V Hue control (under I2C-bus control; sub-address 03H; data byte 3FH for maximum voltage; data byte 20H for nominal voltage and data byte 00H for minimum voltage); note 12 V26 output voltage at 3FH 4.8 −− V at 20H − 3.0 − V at 00H −− 1.0 V Iint current of the internal current source at pin 26 500 −− µA SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT |
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