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參數(shù)資料
| 型號： | TLV320AIC3106_0706 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | Codec |
| 英文描述： | LOW-POWER STEREO AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY |
| 中文描述： | 低功耗立體聲音頻編解碼器的便攜式音頻/電話 |
| 文件頁數(shù)： | 21/102頁 |
| 文件大?。?/td> | 1259K |
| 代理商： | TLV320AIC3106_0706 |
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DA(6)
DA(0)
RA(7)
RA(0)
D(7)
D(0)
Start
(M)
7-bit Device Address
(M)
Write
(M)
Slave
Ack
(S)
8-bit Register Address
(M)
Slave
Ack
(S)
8-bit Register Data
(M)
Stop
(M)
Slave
Ack
(S)
SDA
SCL
(M) => SDA Controlled by Master
(S) => SDA Controlled by Slave
DA(6)
DA(0)
RA(7)
RA(0)
Start
(M)
7-bit Device Address
(M)
Write
(M)
Slave
Ack
(S)
8-bit Register Address
(M)
Slave
Ack
(S)
SDA
SCL
DA(6)
DA(0)
7-bit Device Address
(M)
Read
(M)
Slave
Ack
(S)
D(7)
D(0)
8-bit Register Data
(S)
Stop
(M)
Master
No Ack
(M)
Repeat
Start
(M)
(M) => SDA Controlled by Master
(S) => SDA Controlled by Slave
TLV320AIC3106
SLAS509B–DECEMBER 2006–REVISED JUNE 2007
The I
2
C bus is bidirectional: the SDA line is used both for transmitting and receiving data. When a master reads
from a slave, the slave drives the data line; when a master sends to a slave, the master drives the data line.
Under normal circumstances the master drives the clock line.
Most of the time the bus is idle, no communication is taking place, and both lines are HIGH. When
communication is taking place, the bus is active. Only master devices can start a communication. They do this
by causing a START condition on the bus. Normally, the data line is only allowed to change state while the clock
line is LOW. If the data line changes state while the clock line is HIGH, it is either a START condition or its
counterpart, a STOP condition. A START condition is when the clock line is HIGH and the data line goes from
HIGH to LOW. A STOP condition is when the clock line is HIGH and the data line goes from LOW to HIGH.
After the master issues a START condition, it sends a byte that indicates which slave device it wants to
communicate with. This byte is called the address byte. Each device on an I
2
C bus has a unique 7-bit address to
which it responds. (Slaves can also have 10-bit addresses; see the I
2
C specification for details.) The master
sends an address in the address byte, together with a bit that indicates whether it wishes to read from or write to
the slave device.
Every byte transmitted on the I
2
C bus, whether it is address or data, is acknowledged with an acknowledge bit.
When a master has finished sending a byte (eight data bits) to a slave, it stops driving SDA and waits for the
slave to acknowledge the byte. The slave acknowledges the byte by pulling SDA LOW. The master then sends
a clock pulse to clock the acknowledge bit. Similarly, when a master has finished reading a byte, it pulls SDA
LOW to acknowledge this to the slave. It then sends a clock pulse to clock the bit.
A not-acknowledge is performed by simply leaving SDA HIGH during an acknowledge cycle. If a device is not
present on the bus, and the master attempts to address it, it will receive a not–acknowledge because no device
is present at that address to pull the line LOW.
When a master has finished communicating with a slave, it may issue a STOP condition. When a STOP
condition is issued, the bus becomes idle again. A master may also issue another START condition. When a
START condition is issued while the bus is active, it is called a repeated START condition.
The TLV320AIC3106 also responds to and acknowledges a General Call, which consists of the master issuing a
command with a slave address byte of 00H.
Figure 16. I
2
C Write
Figure 17. I
2
C Read
In the case of an I
2
C register write, if the master does not issue a STOP condition, then the device enters
auto-increment mode. So in the next eight clocks, the data on SDA is treated as data for the next incremental
register.
21
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相關代理商/技術參數(shù) |
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| TLV320AIC3106EVM | 功能描述:音頻 IC 開發(fā)工具 TLV320AIC3106 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TLV320AIC3106EVM-K | 功能描述:音頻 IC 開發(fā)工具 TLV320AIC3106EVM-K Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TLV320AIC3106IGQE | 制造商:Texas Instruments 功能描述:AUD CODEC 2ADC / 2DAC 24BIT 80BGA - Trays |
| TLV320AIC3106IGQER | 制造商:Texas Instruments 功能描述:AUD CODEC 2ADC / 2DAC 24BIT 80BGA - Tape and Reel |
| TLV320AIC3106IRGZR | 功能描述:接口—CODEC Lo-Pwr Stereo CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
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