Harman Kardon FL8385 Service Manual page 35

FL8385
AN8814SB
4-channel driver IC for optical disk drive
Overview
The AN8814SB is a BTL system 4-channel
driver and is encapsulated in the SMD package
which excels in heat radiation characteristic.
Features
• Wide output dynamic range regardless of refer-
ence voltage of the system
• Driver I/O gain setting is possible with an addi-
tional external resistor
• 3.3 V supply voltage is available due to an exter-
nal PNP-tr.
• Additional OP-amp. built-in
Applications
• MD, CD/CD-ROM drive
• DVD/DVD-ROM drive
Block Diagram
21
1
PV
2
6
4
5
V
CC
1
2
3.3 V
reg.
CC
Direction Direction
detector detector
18.4±0.2
(5.15)
(4.8)
28 22 21
1 7 8
+0.10
(1.2) (6.4) 0.35
–0.05
0.8 Seating plane
HSOP042-P-0400
Direction Direction
detector detector
35
harman/kardon
Unit: mm
15
(1.315)
0° to 10°
14
0.65±0.20
8
1
PV
CC
2
V
7
CC
V
detector
CC
Thermal
protection
Fin
GND
circuit
22
V
REF
FL8380