- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358765 > LC78626 (Sanyo Electric Co.,Ltd.) 16-bit fixed point DSP with Flash PDF資料下載
參數(shù)資料
| 型號： | LC78626 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | 16-bit fixed point DSP with Flash |
| 中文描述： | 具有閃存的 16 位定點 DSP |
| 文件頁數(shù)： | 24/32頁 |
| 文件大小： | 475K |
| 代理商： | LC78626 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁當(dāng)前第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
18 The Interpolation Circuit
If, when the error correction circuit cannot correct an error, the erroneous audio data is output without any correction,
the result would be excessive noise. In order to reduce this noise, the erroneous data is replaced with a linear
approximation based on the correct data on either side of the incorrect data. When there are two or more C2 flags, the
previous data level is held. However, when new data is output after two or more continuous flags, then a linear
approximation is made based on the correct data and the held value that is two points earlier and the middle point is
replaced with this linear approximation.
19 The General I/O Ports
Pin 33: CONT2, Pin 34: CONT3, Pin 35: CONT4/SFSY, Pin 36: CONT5/PW
The four signal lines, CONT2 to CONT5, have I/O ports. These lines are all input terminals at the time of reset.
Unused ports must either be connected to ground or set as output ports. Moreover, pins 35 and 36 are pins that are
shared (exclusively) as, respectively, the subcode frame sync signal output pin (SFSY) and the subcode output pin
(PW). The selection of the function of these pins is done by commands from the microcontroller.
The port data is read out sequentially from CONT2, CONT3, CONT4, and CONT5 with the falling edge of the
CQCK from the SQOUT pin when there is a port read command. The command uses a single-byte command format.
*
When a command is applied to this DSP during a track check, track jump, or internal MTR brake operation, then the
DSP will terminate those operations. If you do not wish to terminate these operations, do not apply unnecessary
commands (including general port operation commands) during track check, track jump, or internal MTR brake
operations.
These ports can each be set individual as control output ports by the port I/O set command. The ports are selected by
the lower four bits of a single byte. Starting with the least significant bit, these four bits of this single byte data
correspond to CONT2, CONT3, CONT4, and CONT5. The command uses a two-byte command format (RWC1 set).
No. 5692-24/32
LC78626E
Code
COMMAND
RES = low
$DD
PORT READ
$DB
PORT I/O SET
PORT I SET
$DC
PORT OUTPUT
Code
COMMAND
RES = low
$F6
SFSY, PW output enabled
$F7
SFSY, PW output disabled
G
G
(1) When there is an error in one place
Correct data
Flagged data
Interpolated data
Held at the previous value.
(2) When there are continuous errors (three errors in this example).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| LC78630E | 16-bit fixed point DSP with Flash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。