ICs for Compact Disc/CD-ROM Player
s
Application Notes
2. Logic table of driver
V
C
H
H
H
H
H
L
PC
H
H
H
H
L
X
Fil to Fi4
L
L
H
H
X
X
Ril to Ri4
L
H
L
H
X
X
Fol to Fo3
L
L
H
L
L
Hi-Z
Rol to Ro3
L
H
L
L
L
Hi-Z
AN8746SA
Fo4
L
L
L
H
L
Hi-Z
Ro4
L
H
L
L
L
Hi-Z
Note) AC
=
H on the above logic table. H stands for V
C
power supply potential, L for GND potential (0 V) and X for H or L.
Hi-Z indicates that the driver output pin becomes a high impedance state.
Logic input pin must not be left open. And do not apply any other voltages than H or L.
s
Application Circuit Example
DSP
⇔
Micro-
computer
⇔
M
M
V
GI
=
7 V
26 PGND4
23 PGND3
18 V
GO
15
N.C.
32 V
M4
Logic circuit
Reset
TSD
Pre-
driver
H
bridge
H
bridge
Logic circuit
Pre-
driver
V
G
limiter
VBG
Pre-
driver
V
M1
monitor Logic circuit
H
bridge
H
bridge
Pre-
driver
Logic circuit
PGND2 10
Ro2 11
Ri2 12
Fi2 13
GND 14
V
M1
1
MON 3
PGND1 7
DSP
⇔
V
C
=
2.4 V/0 V
V
M
=
2.4 V
V
M2
16
5
V
C
2
Fi1 4
Ri1 5
Ro1 6
Fo1 8
Fo2 9
17 V
M3
27 Ro4
22 Ro3
19 V
GI
25 Fo4
24 Fo3
28 Ri4
21 Ri3
31 AC
29 Fi4
20 Fi3
30 PC
PANASONIC [ PANASONIC SEMICONDUCTOR ]
