TDA7569LVPD datasheet(27/39 Pages) STMICROELECTRONICS

Part #	TDA7569LVPD

Description	4 x 50 W power amplifier with full I2C diagnostics,high efficiency and low voltage operation

PDF	39 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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27 / 39 page

TDA7569LV

I2C bus

Doc ID 018712 Rev 3

27/39

8.3.2

Start and stop conditions

As shown by Figure 37 a start condition is a HIGH to LOW transition of the SDA line while

SCL is HIGH. The stop condition is a LOW to HIGH transition of the SDA line while SCL is

HIGH.

8.3.3

Byte format

Every byte transferred to the SDA line must contain 8 bits. Each byte must be followed by an

acknowledge bit. The MSB is transferred first.

8.3.4

Acknowledge

The transmitter* puts a resistive HIGH level on the SDA line during the acknowledge clock

pulse (see Figure 38). The receiver** the acknowledges has to pull-down (LOW) the SDA

line during the acknowledge clock pulse, so that the SDA line is stable LOW during this clock

pulse.

* Transmitter

–master (

μP) when it writes an address to the TDA7569LV

–

slave (TDA7569LV) when the

μP reads a data byte from TDA7569LV

** Receiver

–

slave (TDA7569LV) when the

μP writes an address to the TDA7569LV

–

master (µP) when it reads a data byte from TDA7569LV

Figure 36. Data validity on the I2C bus

Figure 37. Timing diagram on the I2C bus

Figure 38. Acknowledge on the I2C bus

TDA7569LVPD Datasheet(PDF) 27 Page - STMicroelectronics