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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)： | 31/34頁 |
| 文件大?。?/td> | 387K |
| 代理商： | LC78626KE |
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Notes on Application Design
While it goes without saying that to achieve system reliability the absolute maximum ratings and allowable operating
conditions specified for this IC must be strictly adhered to, adequate consideration must also be given to the operating
environmental conditions, such as ambient temperature and static electricity, and to the mounting conditions used.
This section presents items that require special care during application design and IC mounting.
Handling of Unused Pins
If unused input pins on this IC are left in the open state during IC operation, there are times when the IC may enter an
unstable state. Always follow all the directions for handling unused pins included in the documentation for this IC.
Also, do not connect any output pins to power supply, ground, or any other output lines.
All general-purpose I/O ports must either be set to the output state and set to output a low level in software, or must be
left in the input state and pulled up or pulled down to a fixed input level.
Latch-up Prevention
Due to the structure of this IC, all supply voltage pins must be supplied with the same potential.
— Also supply the same potential to the servo system ASP. The slice level control circuit is shared with this IC, and
application of the same potential is necessary. Also, the same potential must be supplied to all supply voltage pins
on the ASP IC.
Do not allow the pin voltages on any of the input or output pins to exceed V
DD
or to fall lower than V
SS
. The timing of
signal application requires special care at power on to assure that this condition is met.
Do not allow overvoltages or abnormal noise to be applied to this IC.
In general, latch-up can be prevented by tying any unused pins to either V
DD
or VSS. However, be sure to follow any
special instructions provided with this IC for unused pin handling.
Do not short the outputs.
continued on next page.
No. 5995-31/34
LC78626KE
Comparison of CD-DSP Functions
Model
LC78621E
LC78625E
LC78630E
LC78624E
LC78626KE
(LC78626E)
LC78622E
(LC78622NE)
Function
EFM-PLL
Internal VCO
FR = 1.2k
16k
2
×
Internal VCO
FR = 1.2k
16k
2
×
Internal VCO
FR = 1.2k
18k
4
×
Internal VCO
FR = 1.2k
16k
2
×
Internal VCO
FR = 1.2k
(5.1k
)
16k
2
×
Internal VCO
FR = 1.2k
16k
2
×
RAM
Replay speed
Digital out
G
G
G
G
G
G
G
G
G
G
G
G
Interpolation
4
4
2
2
2
2
Zero cross mute
G
G
G
G
G
G
–
∞
×
G
G
–
∞
×
×
×
×
×
×
5
×
×
×
G
G
–
∞
×
G
G
–
∞
×
–12dB, –
∞
–12dB, –
∞
Level meter peak search
G
G
G
G
Bilingual
G
G
G
G
G
G
G
G
G
G
Digital attenuator
G
G
G
G
G
G
G
G
G
G
Digital filter
8fs
8fs
2fs
8fs (4fs)
4fs (8fs)
Digital Deemphasis
G
G
G
G
G
G
G
G
G
G
General Ports
Output
2
×
×
2
2
×
×
(3)
5
×
×
×
×
×
I/O
(4)
2 + (4)
1 + (3)
×
VCD compatible
G
G
G
G
Anti-shock I/F
G
G
G
G
G
G
Not necessary
Anti-shock controller
×
×
×
×
×
×
G
G
*
×
×
CD text
G
G
CD-ROM I/F
G
G
G
G
G
G
×
×
×
One-bit D/A converter
G
G
G
G
×
×
G
G
G
G
L.P.F
×
×
G
G
G
G
Power supply voltage
3.6 to 5.5 V
3.0 to 5.5 V
3.6 to 5.5 V
3.0 to 5.5 V
3.0 to 3.6 V (3.0 to 5.5 V)
3.0 to 5.5 V
Package
QFP80E
QFP80E
QFP80E
QFP64E
QFP100E
QFP64E
*
Notes: 16M DRAM max
(4M DRAM max)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC78626 | 16-bit fixed point DSP with Flash |
| LC78626E | 16-bit fixed point DSP with Flash |
| LC78628 | 16-bit fixed point DSP with Flash |
| LC78628E | 16-bit fixed point DSP with Flash |
| LC78630 | 16-bit fixed point DSP with Flash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| LC78630 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disk Player DSP |
| 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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