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參數資料
| 型號： | LC78681E |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | QFP-64 |
| 文件頁數： | 22/23頁 |
| 文件大小： | 241K |
| 代理商： | LC78681E |
PLL Clock Regeneration Circuit (pin 4: PDO, pin 3: AI, and pin 2: AO)
A PLL comprising a VCO can be made with an LA9210. Output from the PDO pin goes positive when the VCO phase is
lagging.
VCO Half-Frequency Clock (pin 18: PCK)
This pin monitors a signal generated by dividing the VCO frequency by two. This signal has an average frequency of
4.3218 MHz.
Frame Synchronization Detector Monitor (pin 19: FSEQ)
FSEQ is latched high for one frame when the frame sync (true synchronization signal) recovered from the EFM signal
matches the sync timing generated by an internal counter.
Servo Command Function (pin 51: RWC, pin 53: COIN, pin 54: CQCK and pin 62: CS)
Commands can be input by setting RWC high and issuing the command synchronized to the CQCK clock from COIN.
Focus start
Track jump
Mute control
1-byte commands
Disc motor control
Other control commands
Track count
2-byte command
1. 1-byte Commands
No. 4521-8/23
LC78681E
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| LC78681KE-L | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| LC78681KE | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LC78681KE | 制造商:SANYO 制造商全稱: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:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players |
| LC78684E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:MP3 Decoder for Compact Disc Players |
| LC7868E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players |
| LC7868KE | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players |
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