Signal processor LSI with pre-servo amplifier for CD players
BU9532KS2
Description
BU9532KS2 is a digital signal processor LSI with
built-in pre-servo amplifier developed for CD players.
This built-in pre-servo amplifier is applied to the RW
functions of the compact disc. Combining ROHM's
BU24393 a system micro controller with this new DSP
BU9532KS2 provides an extremely simplified CD system.
Dimension (Units : mm)
Features
Applications
Portable CD players, CD radio cassette players
1) Built-in pre-servo amplifier for playing CD-RW
2) Tracking, Focus automatic control
3) Symmetry correction function
4) Built-in x8 over sampling filter + 1 bit DAC
5) Digital bass boost, soft mute function
01W146A
April, 2002
Absolute Maximum Ratings
(Ta=25C)
Derating : 8.5mW/C for operation above Ta=25C
SQFP-T52
1
2
.
0
0
.
3
1
.
4
0
.
1
0
.
1
0
.
1
1
0
.
0
0
.
2
12.0
0.3
10.0
0.2
0.3
0.1
0.125
0.1
1
13
14
26
52
40
39
27
0
.
5
0.15
0.65
Maximum applied voltage
Power dissipation
Operating temperature range
Storage temperature range
Parameter
Symbol
Limits
Unit
Vcc
Pd
Topr
Tstg
4.5
850
75
25
~
125
55
~
mW
C
C
V
Operating power supply voltage
V
DD
-
2.5
3.3
V
Recommended Operating Conditions (Ta=25C)
Parameter
Min.
Max.
Unit
Typ.
Symbol
Circuit current
Io
-
-
-
-
1.0
-1.4
0.8
-
1.1
-
25
0.01
90
96
1.2
-1.2
1.2
-1.2
1.3
-1.3
32
-
-
-
1.4
-1.0
-
-0.8
-
-1.1
mA
%
dB
dB
V
V
V
V
V
V
THD
DR
S/N
V
ADH
V
ADL
V
DAH
V
DAL
V
RFH
V
RFL
Audio-DAC distortion
Audio-DAC Dynamic range
Audio-DAC S/N rate
Servo-ADC Max. conversion voltage
Servo-ADC Min. conversion voltage
Servo-DAC Max. output voltage
Servo-DAC Min. output voltage
RF amplifier Max. output amplitude
RF amplifier Min. output amplitude
0dB,1KH
Z
-60dB,1KH
Z
Electrical characteristics (Unless otherwise noted;
Ta=25C, Vcc=3.0V)
Block Diagram
Symbol
Min.
Max.
Unit
Conditions
Typ.
Parameter
1
2
3
4
5
6
7
8
9
10
11
12
13
AC
BD
VBIAS
E
F
FEN
FEO
PKC
BTC
PD
LD
ASY
AVDD1
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
2
5
2
6
P
C
O
F
C
O
A
G
N
D
1
S
U
B
S
Y
Q
F
D
O
U
T
J
U
M
P
O
T
D
O
U
T
S
D
I
N
S
D
O
U
T
C
L
K
8
8
L
O
N
C
L
K
5
2
5
1
5
0
4
9
4
8
4
7
4
6
4
5
4
4
4
3
4
2
4
1
4
0
E
Q
O
R
F
I
T
E
N
T
E
O
S
C
T
Z
C
R
F
M
R
F
R
P
R
F
M
A
G
N
D
2
R
D
A
C
O
V
C
D
A
C
L
D
A
C
O
A
V
D
D
2
39
38
37
35
34
33
32
31
30
29
28
27 MCK
DIN
DOUT
RESETX
BUSY
MONI0
R/W
C
L
V
O
U
T
MONI1
36 DVDD
XI
XO
XPLCK
1bit DAC
RF Signal Gen.
BU9532KS2
x8 Over
Sampling
Digital Filter
Digital
Servo
Filter
Digital
Signal
Processor
16K SRAM
Command
Interface
Digital
Servo
Signal
Processor
S
e
r
v
o
S
i
g
n
a
l
G
e
n
.
APC
PLL
C
A
G
C
DGND
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