- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384010 > TLV320AIC34_1 (Texas Instruments, Inc.) FOUR-CHANNEL, LOW-POWER AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY PDF資料下載
參數(shù)資料
| 型號： | TLV320AIC34_1 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | Codec |
| 英文描述： | FOUR-CHANNEL, LOW-POWER AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY |
| 中文描述： | 四通道，低功耗音頻編解碼器的便攜式音頻/電話 |
| 文件頁數(shù)： | 23/94頁 |
| 文件大小： | 905K |
| 代理商： | TLV320AIC34_1 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁當(dāng)前第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁
www.ti.com
I
2
C CONTROL MODE
The TLV320AIC34 supports the I
2
C control protocol using 7-bit addressing and capable of both standard and fast
modes. For I
2
C fast mode, note that the minimum timing for each of t
HD-STA
, t
SU-STA
, and t
SU-STO
is 0.9
μ
s, as seen
in
Figure 16
. The TLV320AIC34 uses two I
2
C addresses, with the
A
channels controlled through one device
address, and the
B
channels controlled using a different device address. These addresses can be modified
through use of the ADDR_A and ADDR_B terminals, as described in the following table.
SDA
SCL
t
HD-STA
0.9 s
3
m
t
SU-STO
0.9 s
3
m
P
S
t
SU-STA
0.9 s
3
m
Sr
t
HD-STA
0.9 s
3
m
S
T0114-02
TLV320AIC34
SLAS538A–OCTOBER 2007–REVISED NOVEMBER 2007
ADDR_A = 1
001 1010
ADDR_A = 0
001 1000
ADDR_B = 1
ADDR_B = 0
A
I
2
C address
B
I
2
C address
001 1011
001 1001
Figure 16. I
2
C Fast-Mode Timing Requirements
This capability to modify the I
2
C addresses allows two TLV320AIC34 codecs to be used on a single I
2
C control
bus, providing individual control of each codec. This provides up to eight channels of audio codec controlled from
a single host processor I
2
C peripheral.
I
2
C is a two-wire, open-drain interface supporting multiple devices and masters on a single bus. Devices on the
I
2
C bus only drive the bus lines LOW by connecting them to ground; they never drive the bus lines HIGH.
Instead, the bus wires are pulled HIGH by pullup resistors, so the bus wires are HIGH when no device is driving
them LOW. This way, two devices cannot conflict; if two devices drive the bus simultaneously, there is no driver
contention.
Communication on the I
2
C bus always takes place between two devices, one acting as the master and the other
acting as the slave. Both masters and slaves can read and write, but slaves can only do so under the direction of
the master. Some I
2
C devices can act as masters or slaves, but the TLV320AIC34 can only act as a slave
device.
An I
2
C bus consists of two lines, SDA and SCL. SDA carries data; SCL provides the clock. All data is transmitted
across the I
2
C bus in groups of eight bits. To send a bit on the I
2
C bus, the SDA line is driven to the appropriate
level while SCL is LOW (a LOW on SDA indicates the bit is zero; a HIGH indicates the bit is one). Once the SDA
line has settled, the SCL line is brought HIGH, then LOW. This pulse on SCL clocks the SDA bit into the receiver
shift register.
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. The
master always drives the clock line. The TLV320AIC34 never drives SCL, because it cannot act as a master. On
the TLV320AIC34, SCL is an input only when configured as an I
2
C terminal.
Copyright 2007, Texas Instruments Incorporated
Submit Documentation Feedback
23
Product Folder Link(s):
TLV320AIC34
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TLV3701CDBV | FAMILY OF NANOPOWER PUSH-PULL OUTPUT COMPARATORS |
| TLV3701IDBV | FAMILY OF NANOPOWER PUSH-PULL OUTPUT COMPARATORS |
| TLV5510INS | 2.7-V TO 3.6-V 8-BIT HIGH-SPEED ANALOG-TO-DIGITAL CONVERTER |
| TLV5535PW | 8-BIT, 35 MSPS, LOW-POWER ANALOG-TO-DIGITAL CONVERTER |
| TLV5580DW | 8-BIT, 80 MSPS LOW-POWER A/D CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLV320AIC34EVM-K | 功能描述:音頻 IC 開發(fā)工具 TLV320AIC34EVM-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 |
| TLV320AIC34IZAS | 功能描述:接口—CODEC Low-Pwr 4-channel 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(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| TLV320AIC34IZASR | 功能描述:接口—CODEC Low-Pwr 4-channel 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(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| TLV320AIC36 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low Power Stereo Audio Codec With Embedded miniDSP |
| TLV320AIC36EVM-K | 功能描述:音頻 IC 開發(fā)工具 TLV320AIC36 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。