TDA7563PDTR データシートの表示（PDF） - STMicroelectronics

部品番号

コンポーネント説明

メーカー

TDA7563PDTR

Multifunction quad power amplifier with built-in diagnostics features

STMicroelectronics 

I2C bus

6

I2C bus

TDA7563PD

6.1

I2C programming/reading sequences

A correct turn on/off sequence respectful of the diagnostic timings and producing no audible

noises could be as follows (after battery connection):

TURN-ON: PIN2 > 7V --- 10ms --- (STANDBY OUT + DIAG ENABLE) --- 500 ms (min) ---

MUTING OUT

TURN-OFF: MUTING IN --- 20 ms --- (DIAG DISABLE + STANDBY IN) --- 10ms --- PIN2 = 0

Car Radio Installation: PIN2 > 7V --- 10ms DIAG ENABLE (write) --- 200 ms --- I2C read

(repeat until All faults disappear).

t(s) OFFSET TEST: Device in Play (no signal) -- OFFSET ENABLE - 30ms - I2C reading (repeat

I2C reading until high-offset message disappears).

roduc ) 6.2

I2C bus interface

P t(s Data transmission from microprocessor to the TDA7563PD and vice versa takes place

te c through the 2 wires I2C bus interface, consisting of the two lines SDA and SCL (pull-up

le du resistors to positive supply voltage must be connected).

bso Pro 6.3

Data validity

) - O lete As shown by Figure 27, the data on the SDA line must be stable during the high period of

t(s o the clock.

s The HIGH and LOW state of the data line can only change when the clock signal on the SCL

c b line is LOW.

Produ t(s) - O 6.4

Start and stop conditions

te c As shown by Figure 28 a start condition is a HIGH to LOW transition of the SDA line while

le u SCL is HIGH.

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

Ob te P 6.5

Byte format

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

Obs acknowledge bit. The MSB is transferred first.

20/29

Share Link: