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TDA4841PS Datasheet(PDF) 40 Page - NXP Semiconductors |
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TDA4841PS Datasheet(HTML) 40 Page - NXP Semiconductors |
40 / 60 page 1999 Oct 25 40 Philips Semiconductors Product specification I2C-bus autosync deflection controller for PC monitors TDA4841PS Fig.20 I2C-bus flow for any mode. (1) See Fig.18. handbook, full pagewidth MGM079 (ANY Mode) Power-Down Mode no acknowledge is given by IC all register contents are random L1 (1) VCC < 8.1 V VCC a soft-down sequency followed by a soft start sequence is generated internally. 8.6 V 8.1 V VCC IC enters standby mode. 8.6 V 8.1 V Power-down mode Power dip of VCC < 8.6 V: • The soft-down sequence is started first • Then the soft-start sequence is generated internally. Power dip of VCC < 8.1 V or VCC shut-down: • This function is independent from the operating mode, therefore it works under any condition • All driver outputs are immediately disabled • IC enters standby mode. Standby mode detection Execute data transmission twice to assure that there was no data transfer error. MGS276 yes no chip address 8CH S 0XH AA A P XXH subaddress data I2C-bus transmission Normal operation acknowledge was given on data? yes no chip address 8CH S 0XH AA A P XXH subaddress data I2C-bus transmission acknowledge was given on data? Standby mode Fig.21 Possible standby mode detection. |
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