MN662785TBUC Datasheet, PDF (17/89 Pages) Panasonic Semiconductor – LSI FOR COMPACT DISC/CD ROM PLAYER

MN662785TBUC
ɾSENSE signal
SENSE signal can be monitored through STAT pin. The meaning of SENSE signal varies with the input
command. The meanings are described below.
OFT
FESL
NACEND
NAJEND
NWTEND
DATA
Off-track input signal is output as it is.
It is set to "H" when the absolute value of the focus error signal amplitude exceeds
30 LSBs by executing the disc detection command.
It is set to "L" when the access terminates and the pull-in operation of the tracking servo
starts.
It is set to "L" when automatic adjustment terminates.
It is set to "L" when data write terminates normally.
The contents of the RAM of the specified address is output beginning with MSB by
inputting MCLK a minimum of 25 µs after MLD is set to "L" with the data read
command, DTSM, sent out for data reading. Refer to Figure 7-1-4.
MDATA
MLD
Disc detection _{Fo ON, Tr ON Fo fine AGC}
KICK
FESL ɹɹɹɹ OFT ɹɹɹ NAJENDɹɹ NACEND
SENSE
(STAT pin)
End of automatic
adjustment
Figure 7-1-2 Switching of SENSE output
End of
KICK
SDD00026AEM
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