參數(shù)資料
型號(hào)： LC78681E
廠(chǎng)商： Sanyo Electric Co.,Ltd.
元件分類(lèi)： 數(shù)字信號(hào)處理
英文描述： Digital Signal Processor for Compact Disc Players
中文描述： 數(shù)字信號(hào)處理器的光盤(pán)播放機(jī)
文件頁(yè)數(shù)： 6/23頁(yè)
文件大?。?/td> 262K
代理商： LC78681E
Figure 3 Subcode Output
Pin Description
No. 4521-6/23
LC78681E
No.
Name
I/O
Description
1
TEST1
I
LSI test input. Normally unconnected.
2
AO
O
3
AI
I
4
PDO
O
5
V
SS
EFMO
—
GND
6
O
7
EFMO
O
8
EFMIN
I
9
TEST2
I
LSI test input. Normally unconnected.
10
CLV
+
O
Disc motor control outputs.
11
CLV
–
O
12
V/P
O
Output is high with constant linear velocity rough servo, and low during phase control
13
FOCS
O
14
FST
O
15
FZD
I
16
HFL
I
17
TES
I
18
PCK
O
4.3218 MHz PCK monitor output.
19
FSEQ
O
High when SYNC (true frame sync) detected from the EFM signal matches SYNC from counter (interleaving frame
sync). (Single-frame latch output.)
20
TOFF
O
21
TGL
O
22
THLD
O
23
TEST3
I
LSI test input. Normally unconnected.
24
V
DD
JP
+
—
+5 V
25
O
26
JP
–
O
27
DEMO
I
Sound generation function for set adjustment.
28
TEST4
I
LSI test input. Normally unconnected.
29
EMPH
O
Deemphasis required when high.
30
NC
Not connected.
31
WCLK
O
Signal output to D/A converter. Outputs latch signal and signals for left-right switching and sample holding.
32
TEST7
O
LSI test input. Normally unconnected.
33
LRCLK
O
Signal output to D/A converter. Outputs latch signal and signals for left-right switching and sample holding.
34
NC
Not connected.
35
DFOUT
O
Signal output to D/A converter. Outputs latch signal and signals for left-right switching and sample holding.
36
DACLK
O
37
TEST6
O
LSI test input. Normally unconnected.
Continued on next page.
LPin for input of the on-chip VCO output from the LA9210 (8.6436 MHz). Phase detector output (PDO) is phased
output with the EFM signal, set so that frequency is raised by positive voltage.
Inputs 1 to 2 V
PP
HF signal to EFMIN. Complementary EFM signal output is made from EFMO and EFMO via the
amplitude limiter. These are used for slice level control.
Focus servo is switched off when FOCS is high. Lens is lowered by FST and raised gradually when FOCS is high.
Generation of FZD resets FOCS. Used for focus servo control.
Generates kick pulse, JP
+
, or JP
–
according to track jump command. Jumps the specified number of tracks (1, 2, 4,
16, 32, 64, or 128).
Generates kick pulse, JP
+
, or JP
–
according to track jump command. Jumps the specified number of tracks (1, 2, 4,
16, 32, 64, or 128).
Generates kick pulse, JP
+
, or JP
–
according to track jump command. Jumps the specified number of tracks (1, 2, 4,
16, 32, 64, or 128).
相關(guān)PDF資料
PDF描述
LC78681KE-L Digital Signal Processor for Compact Disc Players
LC78681KE Digital Signal Processor for Compact Disc Players
LC78684E MP3 Decoder for Compact Disc Players
LC7868E Digital Signal Processor for Compact Disc Players
LC7868KE Digital Signal Processor for Compact Disc Players
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC78681KE 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players
LC78681KE-L 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players
LC78684E 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:MP3 Decoder for Compact Disc Players
LC7868E 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players
LC7868KE 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players
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