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參數(shù)資料
| 型號： | TDA7400D |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| 封裝： | SOP-28 |
| 文件頁數(shù)： | 13/28頁 |
| 文件大?。?/td> | 277K |
| 代理商： | TDA7400D |
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I
2C BUS INTERFACE DESCRIPTION
Interface Protocol
The interface protocol comprises:
-a start condition (S)
-a chip address byte (the LSB bit determines read
/ write transmission)
-a subaddress byte
-a sequence of data (N-bytes + acknowledge)
-a stop condition (P)
D97AU627
S
1
0
1
0 R/W ACK
ACK
P
MSB
LSB
MSB
LSB
MSB
LSB
CHIP ADDRESS
XI
SUBADDRESS
DATA 1 to DATA n
AZ T
A3 A2 A1 A0
DATA
S = Start
ACK = Acknowledge
AZ = AutoZero-Remain
T = Testing
I = Autoincrement
P = Stop
MAX CLOCK SPEED 500kbits/s
The transmitted data is automatically updated af-
ter each ACK. Transmission can be repeated
without new chip address.
Auto increment
If bit I in the subaddress byte is set to "1", the
autoincrement of the subaddress is enabled.
TRANSMITTED DATA (send mode)
MSB
LSB
XX
ST
SM
X
SM = 1 Soft mute activated
ST = 1 Stereo mode
X = Not Used
SUBADDRESS (receive mode)
MSB
LSB
FUNCTION
I3
I2
I1
I0
A3
A2
A1
A0
0
1
AntiRadiation Filter
off
on
0
1
AutoZero Remain
off
on
0
1
Testmode
off
on
0
1
Auto Increment Mode
off
on
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Databyte Addressing
Input Selector
Volume
Treble
Bass
Speaker attenuator LF
Speaker attenuator RF
Speaker attenuator LR
Speaker attenuator RR
SoftMute / Bass Prog.
Stereodecoder
Noiseblanker
High Cut Control
Fieldstrength & Quality
Configuration
Stereodecoder Adjustment
Testing
TDA7400D
20/28
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