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TDA7577BLVPD bảng dữ liệu(PDF) 29 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  2 x 75 W dual-bridge power amplifier with I2C complete diagnostics and
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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TDA7577BLVPD bảng dữ liệu(HTML) 29 Page - STMicroelectronics

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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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