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Компоненты Описание
BD7905BFS Просмотр технического описания (PDF) - ROHM Semiconductor
Номер в каталоге
Компоненты Описание
производитель
BD7905BFS
6CH Power Driver for CD-ROM, DVD-ROM
ROHM Semiconductor
BD7905BFS Datasheet PDF : 18 Pages
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Optical disc ICs
BD7905BFS
!
Measurement circuits
DV
CC
VINFC VINTK
LD
OUT-A5
V
CC
+
A
IQDV
+
A
IQVC
TK
OUT-A4
FC
OUT-A3
AV
M
+
SL1
OUT-A1
SL2
OUT-A2
SLED POWER
SUPPLY UNIT
VINSL2 VINSL1
54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28
47k
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
47k
−
+
117.5k
117.5k
47k
−
+
TSD
OSC
PRE
LOGIC
FF
PRE
LOGIC
FF
−
67k
47k
−
67k
LIMIT
LIMIT
FG
REVERSE
DETECT
HALL
BIAS
OSC
Polarity
COMP
Current
LIMIT
PRE LOGIC
75k
FG
112.5k
STBY/
BRAKE
CONTROL
188k
47k
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
IU
+
A
IV
+
A
IW
+
A
+
+
+
IHB
HU
+
HV
+
HW
+
A
IU
−
+
A
IV
−
+
A
IW
−
+
VSPRNF
V
2 SW-SP
1
+
V
VFG
100k
CTL1 CTL2 VINSP
DV
CC
VINLD V
C
H
−
SPRNF
SPV
M
U
V
W
OUTSP
Fig.1
8/17
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