CXD2500BQ 데이터 시트보기 (PDF) - Sony Semiconductor
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CXD2500BQ Datasheet PDF : 48 Pages
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CXD2500BQ
Command bit
DCLV ON-OFF=0
DCLV ON-OFF=1
(FSW and MON are
unnecessary)
CLV mode
Contents
FSW=L, MON-H, MDS-Z, MDP=servo control signal, with carrier
In CLVS mode
frequency of 230 Hz at TB=0 and 460 Hz at TB=1
FSW=Z, MON=H, MDS=speed control signal with carrier frequency of
In CLVP mode
7.35 kHz, MDP=phase control signal with carrier frequency of 1.84 kHz
MDS= PWM polarity signal. Carrier
DCLV when
frequency=132 kHz
PWM, MD=1
MDS= PWM absolute value output (binary).
In CLVS or
Carrier frequency=132 kHz
CLVP mode
DCLV when
PWM, MD=0
MDS= Z
MDP= ternay PWM output.
Carrier frequency=132 kHz
In the Digital CLV servo mode with DCLV ON-OFF set to 1, the sampling frequency of the internal digital filter
is switched at the same time as the switching between CLVP and CLVS.
Therefore, for CLVS, the cut-off frequency fC is 70 Hz when TB is set to 0, and 140Hz when TB is set to 1.
Command bit
DSPB=0
DSPB=1
Processing
Normal-speed playback. ECC quadruple error correction is made. Vari-pitch
control is enabled.
Double-speed playback. ECC double error correction is made. Vari-pitch control
is disabled.
Set FLFC at 1 when in double-speed playback mode (exclude the low power consumption special playback
mode). However, FLFC can be set to 0 during PLL pull-in (lock). Set to 0 for all other modes.
SENS Output
Microcomputer serial register
values (Latching unnecessary)
$0X
$1X
$2X
$3X
$4X
$5X
$6X
$AX
$BX
$CX
$EX
$7X, 8X, 9X, DX, FX
ASEQ=0
Z
Z
Z
Z
Z
Z
Z
GFS
COMP
COUT
OV64
Z
ASEQ=1
SEIN (FZC)
SEIN (A, S)
SEIN (T. Z. C)
SEIN (SSTOP)
XBUSY
FOK
SEIN (Z)
GFS
COMP
COUT
OV64
0
—15—
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