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參數(shù)資料
型號: LC78630E
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝: QFP-80
文件頁數(shù): 3/33頁
文件大小: 432K
代理商: LC78630E
4. Command input
An external controller can execute LC78630E instructions by setting RWC high and inputting commands to COIN in
synchronization with the CQCK clock. Commands are executed on the fall of the RWC signal.
Single-byte commands
Two-byte commands
Command noise reduction
This command can reduce the noise on the CQCK clock signal. While this is effective for noise pulses under
500 ns, the use of this function requires that the CQCK timings tWL, tWH, and tSU (see Figure 1 and 2) be set to
1 s or longer.
5. CLV servo circuit
CLV servo circuit; Pin 13: CLV+, pin 14: CLV, pin 15: V/P
The CLV+ signal causes the disc to accelerate in the forward direction, and CLVcauses the disc to decelerate. The
microcontroller can select one of four modes: accelerate, decelerate, CLV, and stop. The table below lists the states
of the CLV+ and CLVpins in each of these modes.
Note: The CLV servo control commands only set the TOFF pin low during CLV mode. That pin will be at the high
level at all other times. Thus controlling the TOFF pin with microcontroller commands is only possible in
CLV mode.
No. 5121-11/33
LC78630E
Code
Command
RES = low
$EF
COMMAND INPUT NOISE REDUCTION MODE
$EE
CLEAR THE ABOVE MODE
r
Code
Command
RES = low
$04
DISC MOTOR START (accelerate)
$05
DISC MOTOR CLV (CLV)
$06
DISC MOTOR BRAKE (decelerate)
$07
DISC MOTOR STOP (stop)
r
Mode
CLV+
CLV
Accelerate
High
Low
Decelerate
Low
High
CLV
Pulse output
Stop
Low
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相關代理商/技術參數(shù)
參數(shù)描述
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
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:
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