參數(shù)資料
型號(hào)： LC78621E
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(hào)處理器）
文件頁(yè)數(shù)： 7/34頁(yè)
文件大?。?/td> 417K
代理商： LC78621E
Pin Functions
No. 5223-7/34
LC78621E
Pin No.
Symbol
I/O
Function
1
DEFI
I
Defect detection signal (DEF) input (Must be tied low if unused.)
2
TAI
I
Test input. A pull-down resistor is built in.
3
PDO
O
External VCO control phase comparator output
4
VV
SS
ISET
PLL pins
Internal VCO ground. Normally 0 V.
5
AI
PDO output current adjustment resistor connection
6
VV
DD
FR
Internal VCO power supply.
7
AI
VCO frequency range adjustment
8
V
SS
EFMO
Digital system ground. Normally 0 V.
9
O
EFM signal inverted output
10
EFMO
O
Slice level control
EFM signal output
11
EFMIN
I
EFM signal input
12
TEST2
CLV
+
CLV
–
I
Test input. A pull-down resistor is built in.
Spindle servo control output. Acceleration when CLV
+
is high, deceleration when CLV
–
is high
13
O
14
O
Three-value output is also possible when specified by microprocessor command.
15
V/P
O
Rough servo/phase control automatic switching monitor output. Outputs a high level during rough servo and a low level
during phase control.
16
FOCS
O
Focus servo on/off output. Focus servo is on when the output is low.
17
FST
O
Focus start pulse output. This is an open-drain output.
18
FZD
I
Focus error zero cross signal input. (Must be tied low if unused.)
19
HFL
I
Track detection signal input. This is a Schmitt input.
20
TES
I
Tracking error signal input. This is a Schmitt input.
21
PCK
O
EFM data playback clock monitor. Outputs 4.3218 MHz when the phase is locked.
22
FSEQ
O
Synchronization signal detection output. Outputs a high level when the synchronization signal detected from the EFM
signal and the internally generated synchronization signal agree.
23
TOFF
O
Tracking off output
24
TGL
O
Tracking gain switching output. Increase the gain when low.
25
THLD
O
Tracking hold output
26
TEST3
I
Test input. A pull-down resistor is built in.
27
V
DD
Digital system power supply.
28
JP
+
O
Track jump output. A high level output from JP
+
indicates acceleration during an outward jump or deceleration during an
inward jump.
A high level output from JP
–
indicates acceleration during an inward jump or deceleration during an outward jump.
Three-value output is also possible when specified by microprocessor command.
29
JP
–
O
30
DEMO
I
Sound output function input used for end product adjustment manufacturing steps. A pull-down resistor is built in.
31
TEST4
I
Test input. A pull-down resistor is built in.
32
EMPH
O
De-emphasis monitor pin. A high level indicates playback of a de-emphasis disk.
33
LRCKO
O
Word clock output
34
DFORO
O
Digital filter outputs
Right channel data output
35
DFOLO
O
Left channel data output
36
DACKO
O
Bit clock output
37
TST10
O
Test output. Leave open. (Normally outputs a low level.)
38
ASDACK
I
Bit clock input
39
ASDFIN
I
Anti-shock system inputs
(Must be tied low if unused.) Test input. (Should be tied low for normal operation.)
Left/right channel data input
40
ASDFIR
I
41
ASLRCK
I
Word clock input
Continued on next page.
相關(guān)PDF資料
PDF描述
LC78622E Compact Disc Player DSP(用于CD播放器的8位DSP)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC78622E 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78622NE 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78624E 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78625 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78625E 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP
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