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參數(shù)資料
| 型號： | LC78628E |
| 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)： | 2/40頁 |
| 文件大?。?/td> | 241K |
| 代理商： | LC78628E |
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Buffers the demodulated EFM signal data in internal
RAM and compensates for ±4 frames of jitter due to
disc speed fluctuations.
Performs unscrambling and deinterleaving by reordering
the demodulated EFM signal data to the stipulated order.
Performs error detection and correction and flag
processing (C1: dual errors, C2: dual errors)
The C2 flags are set based on the C1 flags and the result
of the C2 processing, and the signal is interpolated or
muted according to the C2 flags. Four-sample
interpolation is adopted in the interpolation circuit.
Linear (average value) interpolation is applied if up to
three consecutive errors are indicated by the C2 flags,
and muting at the zero level is applied if four or more
consecutive errors are indicated.
Performs track jump, focus start, disc motor start/stop,
muting on/off, track count, and other operations by
executing 8- or 16-bit commands serially input from the
system microprocessor.
Supports high-speed disc access operations based on
arbitrary track counts.
Provides digital outputs.
Built-in
Σ
D/A converter based on a third-order noise
shaper.
Zero-cross muting
Digital attenuator and deemphasis filter
Support 2
×
speed playback
Bilingual function
Built-in text decoder
Five general-purpose I/O ports
Features
80-pin QFP package
Fabricated in a silicon gate CMOS process
3.3 and 5 V power supply voltages
No. 6329-2/40
LC78628E
E
V
V
P
I
F
P
T
T
T
T
T
T
T
V
V
V
V
LRSY
C2F
LRCKI
BCKI
DATAI
DOUT
GAIN
HDCD
DFOLO
DFORO
RWC
COIN
CQCK
SQOUT
WRQ
CS
TEST6
V/P
Slice level
control
Synchronization
EFM demodulation
CLV
digital servo
Subcode
separation
Q CRC
Microprocessor
interface
Servo
commander
I/O ports
Text
decoder
Crystal oscillator
System timing generator
1-bit DAC
MUX
M
U
X
HDCD
decoder
Interpolation
mute
Bilingual
2k
×
8bits
RAM
C1 and C2 error
detection and correction
flag processing
VCO
clock control
RAM address
generator
MUX, S–P
Digital
output
8·Fs HDCD
interpolation
filter
De-emphasis
attenuator
CLV–
CLV+
FSEQ
EFMIN
DEFI
M
L
L
L
R
L
R
M
R
X
X
X
X
F
C
4
1
E
S
D
S
E
P
P
P
P
P
T
R
J
J
T
T
P
H
R
A12795
Block Diagram
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PDF描述 |
|---|---|
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| LC78632 | 16-bit fixed point DSP with Flash |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| LC78631E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disk Player DSP |
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