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=25˚C)
*Derating : 8.5mW/˚C for operation above Ta=25˚C
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
*