參數(shù)資料
型號： TDA7575BPDTR
廠商： STMICROELECTRONICS
元件分類： 音頻／視頻放大
英文描述： 50 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36
封裝： ROHS COMPLIANT, SOP-36
文件頁數(shù)： 8/32頁
文件大小： 487K
代理商： TDA7575BPDTR
I2C bus interface
TDA7575B
Doc ID 14103 Rev 2
5
I2C bus interface
Data transmission from microprocessor to the TDA7575B and vice versa takes place
through the 2 wires I2C BUS interface, consisting of the two lines SDA and SCL (pull-up
resistors to positive supply voltage must be connected).
5.1
Data validity
As shown by Figure 26, the data on the SDA line must be stable during the high period of
the clock.
The high and low state of the data line can only change when the clock signal on the SCL
line is low.
5.2
Start and stop conditions
As shown by Figure 27 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.
5.3
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.
5.4
Acknowledge
The transmitter(*) puts a resistive HIGH level on the SDA line during the acknowledge clock
pulse (see Figure 28). 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 TDA7575B
= slave (TDA7575B) when the P reads a data byte from TDA7575B
(**) Receiver
= slave (TDA7575B) when the P writes an address to the TDA7575B
=master (
μP) when it reads a data byte from TDA7575B
Figure 26.
Data validity on the I2C bus
SDA
SCL
DATA LINE
STABLE, DATA
VALID
CHANGE
DATA
ALLOWED
D99AU1031
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TDA7575PD 功能描述:音頻放大器 INFOTAINMENT S PWR RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7575PDTR 功能描述:音頻放大器 INFOTAINMENT S PWR RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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