參數(shù)資料
型號(hào)： TDA7303TR
廠商： STMICROELECTRONICS
元件分類： 音頻控制
英文描述： 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
封裝： ROHS COMPLIANT, SOP-28
文件頁(yè)數(shù)： 5/20頁(yè)
文件大?。?/td> 252K
代理商： TDA7303TR
TDA7303
I2C bus interface
3
I2C bus interface
Data transmission from microprocessor to the TDA7303 and viceversa 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).
3.1
Data validity
As shown in Figure 20, 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.
3.2
Start and stop conditions
As shown in Figure 21 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.
3.3
Byte format
Every byte transferred on the SDA line must contain 8 bits. Each byte must be followed by
an acknowledge bit. The MSB is transferred first.
3.4
Acknowledge
The master (
μP) puts a resistive HIGH level on the SDA line during the acknowledge clock
pulse (see Figure 22). The peripheral (audioprocessor) that 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.
The audioprocessor which has been addressed has to generate an acknowledge after the
reception of each byte, otherwise the SDA line remains at the high level during the ninth
clock pulse time. In this case the master transmitter can generate the stop information in
order to abort the transfer.
3.5
Transmission without acknowledge
Avoiding to detect the acknowledge of the audioprocessor, the
μP can use a simpler
transmission: simply it waits one clock without checking the slave acknowledging, and sends
the new data.
This approach of course is less protected from misreading and decreases the noise
immunity.
相關(guān)PDF資料
PDF描述
TDA7303 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
TDA7306 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP28
TDA7309 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDIP20
TDA7309D 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO20
TDA7309D013TR 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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TDA7309_06 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DIGITAL CONTROLLED STEREO AUDIO PROCESSOR WITH LOUDNESS
TDA7309D 功能描述:音頻 DSP Digital Audio Proc RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
TDA7309D013TR 功能描述:音頻 DSP Digital Audio Proc RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
TDA7310 功能描述:音頻 DSP Serial Audio Proc RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
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