參數(shù)資料
型號(hào)： TDA7409D
廠商： STMICROELECTRONICS
元件分類： 音頻控制
英文描述： 1 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO20
封裝： SOP-20
文件頁(yè)數(shù)： 7/25頁(yè)
文件大小： 299K
代理商： TDA7409D
15/25
TDA7409
2.0 I2C BUS INTERFACE
2.1 Interface Protocol
The interface protocol comprises:
s
a start condition (S)
s
a chip address byte (the LSB bit determines read / write transmission)
s
a subaddress byte
s
a sequence of data (N-bytes + acknowledge)
s
a stop condition (P)
s
the max. CLOCK SPEED is 500kbits/s
S = Start
R/W ="0" -> Receive-Mode (Chip could be programmed by P)
"1" -> Transmission-Mode (Data could be received by P)
ACK = Acknowledge
P = Stop
2.2 TRANSMITTED DATA (send mode)
SM = Soft mute activated
X = Not Used
The transmitted data is automatic updated after each ACK. Transmission can be repeated without new chipaddress.
2.3 Reset Condition
A Power-On-Reset is invoked if the Supply-Voltage is below than 3.5V. After that the following data is written
automatically into the registers of all subaddresses :
The programming after POR is marked bold-face / underlined in the programming tables.
With this programming all the outputs are muted to VREF (VOUT= VDD/2).
Note : All the blank bits in the following tables are "don't care"-bits.
MSB
LSB
XX
X
SM
MSB
LSB
11
1
0
S
1
0
1
0
R/W
ACK
P
MSB
LSB
MSB
LSB
MSB
LSB
CHIP ADDRESS
D99AU1044
I3
I0
SUBADDRESS
DATA 1 to DATA n
I2 I1
A3 A2 A1 A0
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA7409DTR 功能描述:音頻 DSP INFOTAINMENT SIGNAL 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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