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参数资料
型号： TLV320AIC3111IRHBT
厂商： TEXAS INSTRUMENTS INC
元件分类： 音频／视频放大
英文描述： AUDIO AMPLIFIER, PQCC32
封装： 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件页数： 130/156页
文件大小： 1701K
代理商： TLV320AIC3111IRHBT
LD(n)
LD (n+1)
BIT
CLOCK
DATA
-
1
-
2
-
3
2
1
0
3
-
1
-
2
-
3
0
3
2
1
-
1
-
2
N N N
-
3
RD(n)
WORD
CLOCK
LEFT CHANNEL
RIGHT CHANNEL
LD(n)=n'thsampleofleftchanneldata
RD(n)=n'thsampleofrightchanneldata
LD(n)
LD(n+1)
BIT
CLOCK
DATA
-
1
-
2
-
3
2
1
0
3
-
1
-
2
-
3
0
3
2
1
-
1
-
2
N N N
-
3
RD(n)
WORD
CLOCK
LEFT CHANNEL
RIGHT CHANNEL
LD(n)=n'thsampleofleftchanneldata
RD(n)=n'thsampleofrightchanneldata
LD(n)
LD (n+1)
BIT
CLOCK
DATA
N
-
1
N
-
2
N
-
3
2
1
0
3
N
-
1
N
-
2
N
-
3
0
3
2
1
N
-
1
N
-
2
N
-
3
RD(n)
WORD
CLOCK
LEFT CHANNEL
RIGHT CHANNEL
TLV320AIC3111
www.ti.com
SLAS644B – JULY 2009 – REVISED OCTOBER 2009
5.8.1.4
DSP Mode
The audio interface of the TLV320AIC3111 can be put into DSP mode by programming page 0 /
register 27, bits D7–D6 = 01. In DSP mode, the falling edge of the word clock starts the data transfer with
the left-channel data first and immediately followed by the right-channel data. Each data bit is valid on the
falling edge of the bit clock.
Figure 5-47. Timing Diagram for DSP Mode
Figure 5-48. Timing Diagram for DSP Mode With Offset = 1
Figure 5-49. Timing Diagram for DSP Mode With Offset = 0 and Bit Clock Inverted
For the DSP mode, the number of bit clocks per frame should be greater than or equal to twice the
programmed word length of the data. Also, the programmed offset value should be less than the number
of bit clocks per frame by at least the programmed word length of the data.
5.8.2
Primary and Secondary Digital Audio Interface Selection
The audio serial interface on the TLV320AIC3111 has extensive I/O control to allow communication with
two independent processors for audio data. The processors can communicate with the device one at a
Copyright 2009, Texas Instruments Incorporated
APPLICATION INFORMATION
75
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Product Folder Link(s): TLV320AIC3111
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