参数资料
型号: TAS3001CPW
厂商: TEXAS INSTRUMENTS INC
元件分类: 音频控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28
封装: GREEN, PLASTIC, TSSOP-28
文件页数: 8/55页
文件大小: 432K
代理商: TAS3001CPW
23
tc(SCLK)
td(SLR)
tr(SCLK)
tf(SCLK)
td(SDOUT)
td(SLR)
tsu(SDIN)
th(SDIN)
SCLK
LRCLK
SDOUT1
SDOUT2
SDOUT0
SDIN1
SDIN2
Figure 22. For Right/Left Justified, I2S, Left/Left Justified Serial Protocols
2.1.2
Left-Justified Serial Format
The following are characteristics of this protocol:
LRCLK is the left/right clock. The left channel is transmitted when LRCLK is high. The right channel is
transmitted when LRCLK is low.
The SDIN data is justified to the leading edge of LRCLK.
The MSBs are transmitted at the same time as the LRCLK edge and captured at the very next rising edge
of SCLK.
Serial data is sampled into the device on the rising edge of SCLK.
Serial data is transmitted out of the device on the falling edge of SCLK.
SCLK = 32
× LRCLK (32 × fs SCLK is only supported for 16-bit data) or 64 × LRCLK
In this mode, LRCLK does not have to be a 50% duty-cycle clock. The number of bits used in the interface
sets the minimum duty cycle. There must be enough SCLK pulses to shift all of the data.
MSB
LSB
Left Channel
Right Channel
SDIN
SCLK
SDOUT
LRCLK = fs
LSB
Figure 23. Left-Justified Serial Format
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