ICs for Compact Disc/CD-ROM Player
1
AN8813NSB
4-channel driver IC for optical disk drive
n Overview
The AN8813NSB is a 4-channel driver IC of the
BTL method. Ch.1 is used only for the loading
motor with little gain dispersion.
n Features
• For the loading motor channel, there are 4 modes,
that is, forward rotation, reverse rotation, brake
and standby modes, and you can select a mode
among them. The gain of it is fixed to 6 dB (– 0.5
dB) with a small dispersion among the products.
• 3.3 V supply voltage is available due to an exter-
nal PNP-tr.
• Driver I/O gain setting is possible with an addi-
tional external resistor
• Since the output and input lines are separated and
respectively collected together, pattern designing
is relatively easy.
n Applications
• CD/CD-ROM drive
• DVD/DVD-ROM drive
HSOP042-P-0400
Unit: mm
17 814
(1.315)
0.65±0.20
28 22 21
(4.8)
(6.4)(1.2)
(5.15)
18.4±0.2
8.3±0.2
2.7±0.2
0.1±0.1
10.93±0.30
15
0.35
+0.10
–0.05
0.30
+0.10 –0.05
0.8 Seating plane
0 to 10
n Block Diagram
2519 26 10 5
1820 17 16 15 14 13 12 11
9
6427
22
21
24
23
1
2
VO
1
+
PV
CC1
PGND1
IN1 IN2 IN3 IN4
PGND2
MC1 MC2
V
REF
GND
SV
CC
VO
1
-
VO
2
+
VO
2
-
VO
3
+
VO
3
-
VO
4
+
VO
4
-
PV
CC2
8
7
Fin
28
Direction
detector
PV
CC
3.3 V
reg.
Direction
detector
Direction
changeover
SV
CC
detector
Thermal
protection
circuit
Decoder
Direction
detector
2
1
PV
CC
2
1