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參數(shù)資料
| 型號： | LC78624E |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Compact Disc Player DSP(用于CD播放器的8位DSP) |
| 中文描述： | 光碟機(jī)的DSP（用于光盤播放器的8位數(shù)字信號處理器） |
| 文件頁數(shù)： | 19/27頁 |
| 文件大?。?/td> | 357K |
| 代理商： | LC78624E |
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11. Bilingual Function
Following a reset or when a stereo ($28) command has been issued, the left and right channel data is output to the
left and right channels respectively.
When an Lch set ($29) command is issued, the left and right channels both output the left channel data.
When an Rch set ($2A) command is issued, the left and right channels both output the right channel data.
12. De-Emphasis; Pin 29: EMPH
The preemphasis on/off bit in the subcode Q control information is output from the EMPH pin. When this pin is high,
the LC78624E internal de-emphasis circuit operates.
13. C2 Flag Output; Pin 30: C2F
C2F output flag information in 8-bit units to indicate data error.
14. Digital Output Circuit; Pin 31: DOUT
This is an output pin for use with a digital audio interface. Data is output in the EIAJ format. This signal has been
processed by the interpolation and muting circuits. This pin has a built-in driver circuit and can directly drive a
transformer.
The DOUT pin can be locked at the low level by issuing a DOUT OFF command.
The UBIT information in the DOUT data can be locked at zero by issuing a UBIT OFF command.
The DOUT data can be switched to data for which interpolation and muting processing have not been performed by
issuing a CD-ROM XA command. (At this time, the audio output (the ROMXA pin) enters the mute mode.) While
a ROMXA-RST command is used to switch to the audio output for which interpolation and muting have been
performed. (At this time, audio output (the ROMXA pin) is released from the mute mode.)
15. Mute Control Circuit
Inputting the above command mutes the audio level (MUTE -
∞
dB). Since zero-cross muting is used, there is very
little noise associated with this operation. The IC defines zero cross to be the ranges where the upper 7 bits of the data
are all zeros or all ones.
No. 5811-19/27
LC78624E
Code
Command
RES = low
G
G
$28
STO CONT
$29
Lch CONT
$2A
Rch CONT
Code
Command
RES = low
G
G
$42
DOUT ON
$43
DOUT OFF
$40
UBIT ON
G
G
$41
UBIT OFF
$88
CDROM-XA
$8B
ROMXA-RST
G
G
Code
Command
RES = low
$01
MUTE: 0 dB
MUTE: –
∞
dB
$03
G
G
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC78625E | SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs |
| LC78625 | SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs |
| LC78626KE | Compact Disc Player DSP(用于CD播放器的8位DSP) |
| LC78626 | 16-bit fixed point DSP with Flash |
| LC78626E | 16-bit fixed point DSP with Flash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC78625 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP |
| LC78625E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP |
| LC78626 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:DSP for Compact Disk Players |
| LC78626E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:DSP for Compact Disk Players |
| LC78626KE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CD-Player Processor/Controller |
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