參數(shù)資料
型號(hào): CXD2598Q
廠商: Sony Corporation
元件分類: 數(shù)字信號(hào)處理
英文描述: CD Digital Signal Processor with Built-in Digital Servo and DAC(數(shù)字式CD信號(hào)處理器(內(nèi)置數(shù)字式伺服系統(tǒng)和D/A轉(zhuǎn)換器))
中文描述: CD數(shù)字信號(hào)處理器,具有內(nèi)置數(shù)字伺服和DAC(數(shù)字式光盤信號(hào)處理器(內(nèi)置數(shù)字式伺服系統(tǒng)和的D / A轉(zhuǎn)換器))
文件頁數(shù): 45/147頁
文件大小: 1113K
代理商: CXD2598Q
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CXD2598Q
Description of peak meter mode
(see Timing Chart 1-5.)
When the LSI is set to this mode, the maximum PCM data value is detected regardless of if it comes from the
left or right channel.
The 96-bit clock must be input to SQCK to read out this data.
When the 96-bit clock is input, 96 bits of data are output to SQSO and the value is reset in the LSI internal
register.
In other words, the PCM maximum value register is not reset by the readout.
To reset the PCM maximum value register, set PCT1 = PCT2 = 0 or set the Mute command of $AX to 1.
The Sub-Q absolute time is automatically controlled in this mode.
In other words, after the maximum value is generated, the absolute time for CRC to become OK is retained in
the memory. Normal operation is conducted for the relative time.
The final bit (L/R flag) of the 96-bit data is normally 0.
The pre-value hold and average value interpolation data are fixed to level (–
) for this mode.
SENS output switching
This command is used to output the SQSO pin signal from the SENS pin.
When SOC2 = 0, SENS output is performed as usual.
When SOC2 = 1, the SQSO pin signal is output from the SENS pin.
At this time, the readout clock is input to the SCLK pin.
Note)
SOC2 should be switched when SQCK = SCLK = high.
Command bit
SOC2 = 0
SOC2 = 1
The SENS signal is output from the SENS pin as usual.
The SQSO pin signal is output from the SENS pin.
Processing
Command bit
MCSL = 1
MCSL = 0
DF/DAC block master clock selection. Crystal = 768Fs (33.8688MHz)
DF/DAC block master clock selection. Crystal = 384Fs (16.9344MHz)
Processing
Note)
See "§4-9. DAC Block Playback Speed".
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