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參數(shù)資料
| 型號： | LC78626KE |
| 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)： | 25/34頁 |
| 文件大小： | 387K |
| 代理商： | LC78626KE |
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Reset Circuit Pin 69: RES
When the power supply is turned on, first set this pin low and then set it to high. The muting is set to –
∞
dB and the disk
motor is set to stop.
When the RES pin is low, then the statuses found in the boxes above are set directly.
Other Pins Pin 2: TAI, Pin 16: TEST1, Pin 19: TEST2, Pin 38: TEST3, Pin 40: TEST4, Pin 14: TEST5
These are pins for testing the circuits within the IC. While TAI and TEST2 to TEST5 are equipped with internal pull-
down resistors, for safety reasons, they should be connected to 0 V.
Explanation of the Block Functions
*
RAM address control
This IC contains 8 bits
×
2K words on on-board RAM, and, depending on the address control, the EFM modulation
data jitter absorption capability can have ±4 frames as the buffer memory capacity. Moreover, normally this buffer
margin is checked, and by precisely controlling the CLV servo circuit PCK-side frequency ratio it is possible to
control the data write address so that it will be centered on the size of the buffer. Also, when the ±4 frame buffer
capacity is exceeded, the write address can be forced to ±0, and because the resulting errors cannot be subjected to
flag processing, the mute is applied for a 128 frame period.
No. 5995-25/34
LC78626KE
CLV servo relationship
START
STOP
BRAKE
CLV
Muting control
0 dB
–
∞
Subcode Q address parameter
Address1
Address Free
Track jump mode
Conventional
New
Track count mode
Conventional
New
Digital attenuator
DATA0
DATA 00H to EEH
OSC
ON
OFF
Playback speed
Normal speed
Double speed
Digital filter normal speed
ON
OFF
Position
Frequency divider ratio or process
–4 or lower
Forces transition to ±0
–3
589
–2
589
Forward frequency division
–1
589
±0
588
Standard frequency division
+1
587
+2
587
Backwards frequency division
+3
587
+4 or greater
Forces transition to ±0
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相關(guān)代理商/技術(shù)參數(shù) |
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| LC78628 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP with Built-in HDCD Decoder |
| LC78628E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP with Built-in HDCD Decoder |
| LC7863 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:DIGITAL SIGNAL PROCESSOR FOR COMPACT DISC PLAYERS |
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| LC78630E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disk Player DSP |
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