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TDA4881 Datasheet(PDF) 8 Page - NXP Semiconductors |
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TDA4881 Datasheet(HTML) 8 Page - NXP Semiconductors |
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8 / 12 page  November 1992 8 Philips Semiconductors Preliminary specification Advanced monitor video controller TDA4881 CHARACTERISTICS VP = 8.0 V, Tamb = +25 °C; all voltages measured to GND (pin 4); unless otherwise specified SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VP supply voltage range (pin 7) 7.2 8.0 8.8 V IP supply current (pin 7) − 46 56 mA Video signal inputs Vl(b-w) input voltage (black-to-white, pins 2, 5 and 8) − 0.7 1.0 V I2, 5, 8 DC current no clamping −0.1 − 0.1 µA during clamping ±50 −−µA Brightness control V1 input voltage range see note 1 1.0 − 6.0 V R1 input resistance to VN1 − 50 − k Ω ∆Vbl1 black level voltage change at nominal gain (pins 19, 16 and 13) V1 = 1.0 V; V3, 11 open-circuit −−80 − mV V1 = 6.0 V; V3, 11 open-circuit − 240 − mV VN1 input voltage for nominal brightness pin 1 open-circuit − 2.25 − V Contrast control (see note 2) V6 input voltage range see note 1 1.0 − 6.0 V I6 current −5 −1 −µA Cv contrast relative to nominal contrast V6 = 6.0 V; V3, 11 open-circuit − 3 − dB V6 = 4.5 V; V3, 11 open-circuit − 0 − dB V6 = 1.0 V; V3, 11 open-circuit −−20 − dB Tr tracking of RGB signals 2.5 V < V 6 < 6V; V3, 11 open-circuit − 0 0.5 dB Gain control V3, 11 input voltage range see note 1 1.0 − 6.0 V R3, 11 input resistance against VN3, N11 − 43 − k Ω Gv gain relative to nominal gain V6 = 4.5 V; V3, 11 =6V − 2 − dB V6 = 4.5 V; V3, 11 =1V −−4 − dB VN3, N11 input voltage for nominal gain pin 3, 11 open-circuit − 4.6 − V Feedback input Vint internal reference voltage see note 3 tbn 5.8 tbn V I18, 15, 12 output current during output clamping −1.5 −1.0 −0.1 µA |
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