參數(shù)資料
型號: TAS3001CPWG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28
封裝: GREEN, PLASTIC, TSSOP-28
文件頁數(shù): 9/55頁
文件大小: 432K
代理商: TAS3001CPWG4
24
2.1.3
Right-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 (recorded data) is justified to the trailing edge of the LRCLK.
Serial data is sampled on the rising edge of SCLK.
Serial data is transmitted on the falling edge of SCLK.
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
X
SDIN1
SCLK
MSB
X
LSB
MSB
X
MSB
X
LSB
Left Channel
Right Channel
SDOUT
LRCLK = fs
Figure 24. Right-Justified Serial Format
2.2
LRCLKOUT and SCLKOUT
The digital audio processor and on-chip logic are sequenced using an internal system clock that is derived from MCLK
(master clock). Also derived from MCLK are the LRCLKOUT and SCLKOUT signals that provide clocks to the
TAS3001 and other devices in the system.
The TAS3001 allows multiple system clocking schemes. In Figure 25, the TAS3001 provides system clocks (LRCLK
and SCLK) to other parts of the system. In Figure 26, a system master other than the TAS3001, provides system
clocks (LRCLK and SCLK) to the TAS3001.
相關(guān)PDF資料
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TAS3001CPW 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28
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