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TDA4680WP Scheda tecnica(PDF) 9 Page - NXP Semiconductors |
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TDA4680WP Scheda tecnica(HTML) 9 Page - NXP Semiconductors |
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9 / 28 page  1996 Oct 25 9 Philips Semiconductors Product specification Video processor with automatic cut-off and white level control TDA4680 SATOF (Saturation control Off): 0 = saturation control enabled 1 = saturation control disabled, nominal saturation enabled. I2C-BUS TRANSMITTER (MICROCONTROLLER READ MODE) As an I2C-bus transmitter, R/W = 1, the TDA4680 sends a data byte from the status register to the microcontroller. The data byte consists of following bits: PONRES, CB1, CB0, CG1, CG0, CR1, CR0 and 0, where PONRES is the most significant bit. PONRES (Power On Reset) monitors the state of TDA4680’s supply voltage: 0 = normal operation 1 = supply voltage has dropped below approximately 6.0 V (usually occurs when the TV receiver is switched on or the supply voltage was interrupted). When PONRES changes state from a logic LOW to a logic HIGH all data and function bits are set to logic LOW. 2-BIT WHITE LEVEL ERROR SIGNAL (see Table 4) CB1, CB0 = 2-bit white level of the blue channel. CG1, CG0 = 2-bit white level of the green channel. CR1, CR0 = 2-bit white level of the red channel. Table 1 Sub-address (SAD) and data bytes; note 1 Note 1. X = don’t care. FUNCTION SAD (HEX) MSB LSB D7 D6 D5 D4 D3 D2 D1 D0 Brightness 00 0 0 A05 A04 A03 A02 A01 A00 Saturation 01 0 0 A15 A14 A13 A12 A11 A10 Contrast 02 0 0 A25 A24 A23 A22 A21 A20 Hue control voltage 03 0 0 A35 A34 A33 A32 A31 A30 Red gain 04 0 0 A45 A44 A43 A42 A41 A40 Green gain 05 0 0 A55 A54 A53 A52 A51 A50 Blue gain 06 0 0 A65 A64 A63 A62 A61 A60 Red level reference 07 0 0 A75 A74 A73 A72 A71 A70 Green level reference 08 0 0 A85 A84 A83 A82 A81 A80 Blue level reference 09 0 0 A95 A94 A93 A92 A91 A90 Peak drive limit 0A 0 0 AA5 AA4 AA3 AA2 AA1 AA0 Reserved 0B XXXXXXXX Control register 1 0C SC5 DELOF BREN WPEN NMEN VBW2 VBW1 VBW0 Control register 2 0D SATOF FSWL FSBL BCOF FSDIS2 FSON2 FSDIS1 FSON1 Reserved 0E XXXXXXXX Reserved 0F XXXXXXXX |
Codice articolo simile - TDA4680WP |
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