參數(shù)資料
型號(hào): TLV320DAC3120IRHBR
廠商: TEXAS INSTRUMENTS INC
元件分類: DAC
英文描述: SERIAL INPUT LOADING, 24-BIT DAC, PQCC32
封裝: 5 X 5 MM, PLASTIC, QFN-32
文件頁(yè)數(shù): 53/110頁(yè)
文件大?。?/td> 1230K
代理商: TLV320DAC3120IRHBR
LD(n)
LD(n+1)
WORD
CLOCK
BIT
CLOCK
DATA
-
1
-
2
-
3
2
1
0
3
-
1
-
2
-
3
2
1
0
3
-
1
-
2
N N N
-
3
RD (n)
LEFT CHANNEL
RIGHT CHANNEL
LD(n)=n'thsampleofleftchanneldata
RD(n)=n'thsampleofrightchanneldata
LD(n)
LD (n+1)
WORD
CLOCK
BIT
CLOCK
DATA
-
1
4
3
2
5
1
0
-
1
4
3
2
5
1
0
N
-
1
5
RD(n)
LEFT CHANNEL
RIGHT CHANNEL
LD(n)=n'thsampleofleftchanneldata
RD(n)=n'thsampleofrightchanneldata
LD(n)
LD(n+1)
WORD
CLOCK
BIT
CLOCK
DATA
-
1
-
2
-
3
2
1
0
3
-
1
-
2
-
3
2
1
0
3
-
1
-
2
N N
N
N N
N
N N
N
-
3
RD(n)
LEFT CHANNEL
RIGHT CHANNEL
LD(n)=n'thsampleofleftchanneldata
RD(n)=n'thsampleofrightchanneldata
www.ti.com
SLAS659 – NOVEMBER 2009
5.8.1.3
I2S Mode
The audio interface of the TLV320DAC3120 can be put into I2S mode by programming page 0 /
register 27, bits D7–D6 = to 00. In I2S mode, the MSB of the left channel is valid on the second rising
edge of the bit clock after the falling edge of the word clock. Similarly, the MSB of the right channel is valid
on the second rising edge of the bit clock after the rising edge of the word clock.
Figure 5-23. Timing Diagram for I2S Mode
Figure 5-24. Timing Diagram for I2S Mode With Offset = 2
Figure 5-25. Timing Diagram for I2S Mode With Offset = 0 and Bit Clock Inverted
For I2S mode, the number of bit clocks per channel should be greater than or equal to 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.
Copyright 2009, Texas Instruments Incorporated
APPLICATION INFORMATION
47
Product Folder Link(s): TLV320DAC3120
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