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TDA7577BLVPD 데이터시트(PDF) 29 Page - STMicroelectronics |
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TDA7577BLVPD 데이터시트(HTML) 29 Page - STMicroelectronics |
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29 / 43 page ![]() DocID025375 Rev 5 29/43 TDA7577BLV I2C bus interface 42 Figure 38. Timing diagram on the I2C bus Figure 39. Timing acknowledge clock pulse 9.5 I2C programming/reading sequences A correct turn on/off sequence with respect to the diagnostic timings and producing no audible noises could be as follows (after battery connection): – TURN-ON: (STANDBY OUT + DIAG ENABLE) --- 1 s (min) --- MUTING OUT – TURN-OFF: MUTING IN - wait for 50 ms - HW ST-BY IN (ST-BY pin ≤ 1.2 V) Car Radio Installation: DIAG ENABLE (write) --- 200 ms --- I2C read (repeat until All faults disappear). – OFFSET TEST: Device in Play (no signal) -- – OFFSET ENABLE - 30 ms - I2C reading (repeat I2C reading until high-offset message disappears). |
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