AN8849SB
Head amplifier IC for CD-ROM drive (for 24 times speed or more)
■ Overview
The AN8849SB is a head amplifier IC for
digital servo. It can configure an efficient CD-ROM
system in combination with the MN662752, and
allows a full-automatic adjustment of tracking bal-
ance-gain-offset and focus balance-gain-offset with
fewer external parts.
Built-in functions are a variable equalizer, wide
band RF amp. and AGC which meet CAV playback
with 24 times speed or more.
■ Features
• Variable equalizer which meets CAV playback
with 24 times speed or more CAV playback.
• Wide band RF amp. and AGC (f
C
= 20 MHz or
more (−3 dB))
• Balance adjustment function built-in
Focus error amp./tracking error amp.
• CD-RW playback compatible.
Variable gain
Focus error amp./tracking error amp.
(to +16.9 dB)
• OFTR/BDO detection
• APC amp.
■ Applications
• CD/CD-ROM drive
SSOP036-P-0450A
Unit: mm
8.4±0.3
0.5
0.1±0.1
11.93±0.3
2.85±0.2
15.2±0.3
36 19
118
0.3±0.11 0.8
1.30±0.25 1.30±0.25
Seating plane
0.2
+0.10
–0.05
FL8380FL8380
FL8385
harman/kardon