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TDA7439 데이터시트(PDF) 12 Page - STMicroelectronics

부품명 TDA7439
상세설명  Three-band digitally-controlled audio processor
PDF  23 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7439 데이터시트(HTML) 12 Page - STMicroelectronics

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I2C bus interface
TDA7439
12/23
Figure 12.
Timing diagram of the data on the I2C bus
Figure 13.
Timing diagram of the start/stop
Figure 14.
Timing diagram of the acknowledge
4.6
Interface protocol
The interface protocol comprises:
"
a start condition (S)
"
a chip-address byte, containing the TDA7439 address
"
a sub-address byte including an auto address-increment bit
"
a sequence of data bytes (N bytes + acknowledge)
"
a stop condition (P).
Figure 15.
SDA addressing and data
SCL
SDA
Data can change
Data stable
when clock high when clock low
SCL
SDA
Stop
Start
SCL
SDA
Acknowledge
Start
9
8
6
7
2
1
MSB
from receiver
S
1
0
0
0
1
0
0
0
ACK
ACK
DATA
ACK
P
MSB
LSB
MSB
LSB
MSB
LSB
CHIP ADDRESS
D96AU420
X
DATA
SUBADDRESS
DATA 1 to DATA n
X
X
B
S = Start, ACK = Acknowledge, B = Auto increment, P = Stop



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