Panasonic AN8882SB Datasheet
ICs for Compact Disc/CD-ROM Player
AN8882SB
Head amplifier IC for CD-ROM drive (for 32 times speed or more)
■ Overview
The AN8882SB is a head amplifier IC for
digital servo. It can configure an efficient CD-ROM
system in combination with the MN662754, and
allows a full-automatic adjustment of tracking balance-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 32 times speed or more.
■ Features
• Variable equalizer which meets CAV playback
with 32 times speed or more.
(6-step changeover)
• Wide band RF amp. and AGC (f
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 +12 dB)
• OFTR/BDO detection
• APC amp. (LD reference voltage changeover for
CD-RW playback)
= 30 MHz or
C
Unit: mm
+0.10
36 19
15.2±0.3
118
0.3±0.11 0.8
Seating plane
SSOP036-P-0450A
0.2
–0.05
8.4±0.3
11.93±0.3
1.30±0.25 1.30±0.25
2.85±0.2
0.1±0.1
0.5
■ Applications
• CD/CD-ROM drive
1
AN8882SB ICs for Compact Disc/CD-ROM Player
■ Block Diagram
3TOUT
CEA
NRFDET
ARF
CAGC
RFC
12
11
17
10
9
8
CBDO
13
ENV
detection
RF AGC
BDO
14
BDO
COFTR
151626
AC
RFDET
OFTR
OFTR
FEN
FEOUT
27
REF2VREF1
V
22
REF2
V
20
Standby
V
REF2
LD
PD
2
1
5
LDON
19
TVREF2
4
TFLT
FL TCTL
28
GCTRL
29
FBAL
25
FTEO
24
TEOUT
23
TEN
BCA
GCA
Amp.
E
30
21
18
3
TBAL
V
CC2
V
CC1
GND
EQCTL
RFOUT
7
6
EQCTL
amp.
ADD
ADD
amp.
36
ADD
A
BCA
GCA
amp.
35
BCA
32
BCA
GCA
Amp.
31
F
GCA
amp.
ADD
34
33
C
B
D
2
ICs for Compact Disc/CD-ROM Player AN8882SB
■ Pin Descriptions
Pin No. Description
1 APC amp. input pin
2 APC amp. output pin
3 Power supply pin 1
4 TE amp. analog SW & V
REF2
buffer
control pin
5 APC & standby control pin
6 RF addition amp. output pin
7 EQ characteristics control pin
8
Capacitor connection pin for HPF of AGC input
9 AGC loop filter connection pin
10 AGC output pin
11 Capacitor connection pin for HPF amp.
12 3TENV output pin
13 Capacitor connection pin for RF dark-side
envelope detection
14 BDO output pin
15 Capacitor connection pin for RF right-side
envelope detection
16 OFTR output pin
17 NRFDET output pin
Pin No. Description
18 GND pin
19 V
20 V
buffer output pin
REF2
output pin
REF1
21 Power supply pin 2
22 V
output pin
REF2
23 TE amp. inverted input pin
24 TE amp. output pin
25 TE amp. analog SW output pin
26 FE amp. inverted input pin
27 FE amp. output pin
28 GCTL pin
29 FBAL control pin
30 TBAL control pin
31 Tracking signal input pin 1
32 Tracking signal input pin 2
33 Focus signal input pin 4
34 Focus signal input pin 2
35 Focus signal input pin 3
36 Focus signal input pin 1
■ Absolute Maximum Ratings
Parameter Symbol Rating Unit
Supply voltage 1 V
Supply voltage 2 V
Supply current 1 I
Supply current 2 I
Power dissipation P
Operating ambient temperature T
Storage temperature T
Note) Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
CC1
CC2
CC1
CC2
D
opr
stg
5.8 V
5.8 V
55.3 mA
3.4 mA
340.46 mW
−20 to +75 °C
−55 to +125 °C
■ Recommended Operating Range
Parameter Symbol Range Unit
Supply voltage 1 V
Supply voltage 2 V
CC1
CC2
4.5 to 5.5 V
3.0 to 5.5 V
3
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