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參數(shù)資料
| 型號： | LC78628 |
| 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)： | 22/40頁 |
| 文件大?。?/td> | 241K |
| 代理商： | LC78628 |
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No. 6329-22/40
LC78628E
Code
Command
RES = low
$28
STO CONT
G
G
$29
Lch CONT
$2A
Rch CONT
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.
This function applies to the 16-bit data output to the HDCD decoder and ROMXA pin. This means that it may become impossible to recognize HDCD discs
when either the Lch CONT or Rch CONT mode in this function has been set up.
13. Bilingual function
Code
Command
RES = low
$88
CD-ROMXA
$8B
CD-ROM XA reset
G
G
$C9
CK2 polarity inversion
14. CD-ROM outputs — Pin 76: LRSY, pin 77: CK2, pin 78: ROMXA, pin 79: C2F
Although the LC78628E is initially set up to output audio data from the interpolation circuit MSB first from the
ROMXA pin in synchronization with the LRSY signal, it can be switched to output CD-ROM data by issuing a CD-
ROMXA command. Since this data has not been processed by the interpolation, muting, and other digital circuits, it
is appropriate for input to a CD-ROM encoder IC. CK2 is a 2.1168 MHz clock, and data is output on the CK2 falling
edge. However, this clock polarity can be inverted by issuing a CK2 polarity inversion command. C2F is the flag
information for the data in 8-bit units.
SPDHDCD
ROMXA
Data output from the DOUT pin
RES = low
0
0
16-bit audio data after interpolation and muting processing
G
G
0
1
16-bit data before interpolation and muting processing
1
0
20-bit audio data following HDCD processing.
1
1
15. Digital output circuit — Pin 56: DOUT
This output pin is provided for use with a digital audio interface. Data is output in the EIAJ format. The data output
from DOUT can be switched as listed below by the ROMXA flag set by the CD-ROMXA ($88) or CD-ROMXA
reset ($8B) commands and by the SPDHDCD flag in the HDCD control register.
CK2 positive
polarity mode
CK2 inverted
polarity mode
LRSY
ROMXA
0
“0”
“0”
15141312 1110 9 8 7 6 5 4 3 2 1 0
15141312 1110 9 8 7 6 5 4 3 2 1 0
2
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
3
2
1
48
47
2
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
3
2
1
48
47
LSB
LRSY = 44.1 kHz (N times disc speed)
CK2 = 2.1168 MHz (N times disc speed)
Rch
MSB
LSB
Lch
LSB C2 flags
MSB C2 flags
LSB C2 flags
MSB C2 flags
MSB
C2F
A12821
相關PDF資料 |
PDF描述 |
|---|---|
| LC78628E | 16-bit fixed point DSP with Flash |
| LC78630 | 16-bit fixed point DSP with Flash |
| LC78630E | 16-bit fixed point DSP with Flash |
| LC78631 | 16-bit fixed point DSP with Flash |
| LC78631E | 16-bit fixed point DSP with Flash |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| LC78631 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disk Player DSP |
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