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參數(shù)資料
| 型號(hào)： | LC78631E |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | 數(shù)字信號(hào)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(diǎn) DSP |
| 文件頁數(shù)： | 1/34頁 |
| 文件大小： | 503K |
| 代理商： | LC78631E |
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Overview
The LC78631E is a compact disc D/A signal-processing
LSI for CD-ROM drives that provides a variable clock
error correction (VCEC) mode. The LC78631E
demodulates the EFM signal from the optical pickup and
performs de-interleaving, error detection, error correction,
digital filtering, and other processing. The LC78631E
includes an on-chip 1-bit D/A converter, and executes
commands sent from a control microprocessor.
Features
VCEC support
Built-in PLL circuit for EFM detection (supports 4
×
playback)
Built-in PLL for variable pitch playback (±13%)
18KB RAM on chip
Error detection and correction (corrects two errors in C1
and four errors in C2)
Frame jitter margin: ±8 frames
Frame synchronization signal detection, protection, and
insertion
Dual interpolation adopted in the interpolation circuit.
EFM data demodulation
Subcode demodulation
Zero-cross muting adopted
Servo command interface
2fs digital filter
Digital de-emphasis
Built-in independent left- and right-channel digital
attenuators (239 attenuation steps)
Supports the bilingual function
Left/right swap function
Built-in 1-bit D/A converter (third-order
∑
noise
shaper, PWM output)
Built-in digital output circuit
CLV servo
Arbitrary track jumping (of up to 255 tracks)
Variable sled voltage (four levels)
Six extended I/O ports and 2 extended output ports
Built-in oscillator circuit using an external 16.9344 MHz
or 33.8688 MHz (for 4
×
playback) element
Supply voltage: 3.6 to 5.5 V (4.75 to 5.5 V for 4
×
playback mode)
Package Dimensions
unit: mm
3174-QFP80E
CMOS LSI
62096HA (OT) No. 5342-1/34
SANYO: QFP80E
[LC78631E]
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
Compact Disk Player DSP
LC78631E
Ordering number : EN 5342
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| LC78632 | 16-bit fixed point DSP with Flash |
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| LC7865E | Digital Signal Processor for Compact Disc Players |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC78632 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disk Player DSP |
| LC78632RE | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disk Player DSP |
| LC78637E-E | 制造商:ON Semiconductor 功能描述: |
| LC7863KA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LC78641E | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CD-Player Processor/Controller |
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