M62475FP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC
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M62475FP Datasheet PDF : 19 Pages
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MITSUBISHI SOUND PROCESSOR ICs
M62475FP
AUTOMATIC ADJUSTMENT CD PREAMPLIFIER SERVO CONTROLLER
SERIAL DATA (MSD) TRANSFER METHOD
Data is transferred with LSB first and the MLA signal is sent to
execute the command.
SERIAL DATA INPUT TIMING CHART
MSD
PIN 25 INPUT
LSB
MSB
D0 D1 D2 D3 D4 D5 D6 D7
th
tsu
MCK
PIN 24 INPUT
MLA
PIN 22 INPUT
twck
twck
1/fck
LOGIC INPUT CONDITIONS
td twl
Symbol
fck
twck
tsu
th
td
twl
Parameter
Clock frequency
Clock pulse width
Setup time
Hold time
Delay time
Latch pulse width
Test conditions
Limits
Unit
Min. Typ. Max.
—
100 200 kHz
2.5
5
—
µs
0.1 0.2
—
µs
2.5
5
—
µs
2.5
5
—
µs
1
5
—
µs
BRAKE
Setting the break command to "1" performs the jump brake
operation to improve the jump setting capability after the track
jump.
Jump Brake Operation
The track servo loop is set to OFF with TC=" " (at the falling
edge of TCDet output) when MR is 1.
The track servo loop is set to ON with TC=" " (at the falling
edge of TCDet) when MR is 0.
Jump Brake True Value List (Effective in the TS ON mode)
INPUT
OUTPUT
MIRROR
TC Det
TS SW status
"1"
1 ("Mirror")
OPEN (track servo OFF)
0 ("Track")
CLOSE (track servo ON)
"0"
Note 3. TC/SHSW "CLOSE", TG SW "OPEN"
SHOCK
With the SHOCK command set to "1", the shock operation is
carried out to switch the track gain at time of shock.
Jump Brake Operation
With SHOCK detect=1, the track gain is placed in the shock
mode.
With SHOCK Det=0, the track gain is placed in the normal
mode.
Shock True Value List (Effective in the TS ON mode)
INPUT
SHOCK Det
OUTPUT
TG SW status
"1"
1 ("SHOCK")
OPEN (Shock mode)
0 ("NORMAL")
CLOSE (Normal mode)
"0"
Note 4. TC/SH SW "OPEN"
5. V + and V - are set with external constant.
MITSUBISHI
ELECTRIC
TRACK CROSS DET
VREF-62.5mV
TE
VREF+62.5mV
SHOCK DETECTOR
V-
VREF
TE
V+
(10 / 19 )
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