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參數(shù)資料
| 型號： | TPA5051_07 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | FOUR CHANNEL DIGITAL AUDIO LIP-SYNC DELAY WITH I2C CONTROL |
| 中文描述： | 四通道數(shù)字音頻口形同步延遲與I2C控制 |
| 文件頁數(shù)： | 12/21頁 |
| 文件大小： | 710K |
| 代理商： | TPA5051_07 |
www.ti.com
COMPLETE UPDATE REGISTER (0x08, 0x10)
Since the audio delay values are divided among several registers, it is likely that multiple writes would be
necessary to configure the device. This may cause interruptions in the audio stream and unwanted pops and
clicks might occur as register data is passed to delay functional block.
APPLICATION EXAMPLES
Connecting Two Devices in Series to Increase the Delay
BCLK1
LRCLK1
DATA1
DATA2
BCLK2
LRCLK2
2 k
W
2 k
W
BCLK1
LRCLK1
DATA1
DATA2
BCLK2
LRCLK2
BCLK1
LRCLK1
DATA1
DATA2
BCLK2
LRCLK2
BCLK1
LRCLK1
DATA1
DATA2
BCLK2
LRCLK2
DATA_OUT1
DATA_OUT2
DATA_OUT1
DATA_OUT2
V
G
0.1 F
V
G
0.1 F
A
A
A
SCLK
SDA
A
A
A
SDA
SCL
SCLK
Audio
Processor
SDA
SCL
SCL
Audio
Amplifier
TPA5051
SLOS497A–JUNE 2006–REVISED JULY 2006
To avoid this from happening, the
Complete Update
register is used to transfer the user settings from the
register file to the delay functional block when a 1 is written to the LSB. For example, if the right delay is set to
35 samples, and the left delay is set to 300 samples, the device holds the right channel in MUTE until 35
samples of audio data have passed, and holds the left channel in MUTE until 300 samples of audio data have
passed.
The
Complete Update
register must also be used when either the stream type is changed or the RJ packet
length is changed. If a complete update command is not issued, the changes will not take effect.
Note that the individual channels can be muted using the upper bits of the Control Registers
without
writing to
the Complete Update registers.
Table 7. Complete Update Registers (0x08, 0x10)
(1)
D7–D1
D0
0
1
FUNCTION
X
X
No data from the register settings is passed to the delay block.
Stream type, right/left delay or frame delay, and packet length is passed to the delay functional block.
(1)
Default values are in
bold
.
It is sometimes desirable to increase the delay time beyond which one device can provide. In such cases,
several TPA5051 devices can be placed in series to increase the delay. A maximum of eight devices can be
placed in series. This is because each device has eight I
2
address settings. Under no circumstances should two
TPA5051 devices share the same I
2
S address. See
Figure 11
.
Figure 11. Two Devices Connected in Series
12
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| TPA5051EVM | 功能描述:音頻 IC 開發(fā)工具 AUD DELAY DEVICE 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 |
| TPA5051RSAR | 功能描述:音頻 DSP 4Ch Dig Aud Delay Proc 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 |
| TPA5051RSARG4 | 功能描述:音頻 DSP 4Ch Dig Aud Delay Proc 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 |
| TPA5051RSAT | 功能描述:音頻 DSP 4Ch Dig Aud Delay Proc 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 |
| TPA5051RSATG4 | 功能描述:音頻 DSP 4Ch Dig Aud Delay Proc 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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