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: 7/55页
文件大小: 432K
代理商: TAS3001CPW
22
2.1.1
I2S Serial Format
The following are characteristics of this protocol:
LRCLK is the left/right clock. The left channel is transmitted when LRCLK is low. The right channel is
transmitted when LRCLK is high.
SDIN is sampled with the rising edge of SCLK.
SDOUT is transmitted on the falling edge of SCLK.
LRCK must have a 50% duty cycle.
MSB
SDIN
SCLK
MSB
X
LSB
MSB
X
MSB
X
LSB
Left Channel
Right Channel
SDOUT
LRCLK = fs
X
Figure 21. I2S-Compatible Serial Format
2.1.1.1 I2S Signal Timing
PARAMETER
MIN
TYP
MAX
UNIT
tc(SCLK)
SCLK frequency
6.144
MHz
td(SLR)
SCLK rising to LRCLK edge
20
ns
td(SDOUT)
SDOUT valid from SCLK falling (see Note 1)
1/(256
× fs) +10
ns
tsu(SDIN)
SDIN setup before SCLK rising edge
20
ns
th(SDIN)
SDIN hold after SCLK rising edge
100
ns
LRCLK
32
44.1/48
96
kHz
Duty cycle
50%
NOTE 1: Maximum of 50-pF external load on SDOUT.
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