TDA7563APD datasheet(23/35 Pages) STMICROELECTRONICS

No de pièce	TDA7563APD

Description	4 x 50W multifunction quad power amplifier with built-in diagnostics feature

PDF	35 Pages

Scroll/Zoom	100%

Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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23 / 35 page

TDA7563A

I2C bus

23/35

7.6

Acknowledge

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

pulse (see Figure 31). 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 TDA7563A

–

slave (TDA7563A) when the µP reads a data byte from TDA7563A

(**) Receiver

–

slave (TDA7563A) when the µP writes an address to the TDA7563A

–

master (µP) when it reads a data byte from TDA7563A

Figure 29.

Data validity on the I2C bus

Figure 30.

Timing diagram on the I2C bus

Figure 31.

Timing acknowledge clock pulse

SDA

SCL

DATA LINE

STABLE, DATA

VALID

CHANGE

DATA

ALLOWED

D99AU1031

SCL

SDA

START

I2CBUS

STOP

D99AU1032

SCL

MSB

23789

SDA

START

ACKNOWLEDGMENT

FROM RECEIVER

D99AU1033

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