01W146A
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)
12.0
±
0.3
10.0
±
0.2
39
27
26
12.0
±
0.3
10.0
±
0.2
40
52
1
14
13
1.4
±
0.1
0.1
±
0.1
Features
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
0.65
0.3
±
0.1
0.15
SQFP-T52
Applications
Portable CD players, CD radio cassette players
Absolute Maximum Ratings
(Ta=25˚C)
Parameter
Maximum applied voltage
Power dissipation
Operating temperature range
Storage temperature range
∗
Derating : 8.5mW/˚C for operation above Ta=25˚C
Symbol
Vcc
Pd
Topr
Tstg
Limits
4.5
850
∗
–25
–55
~
~
75
125
Unit
V
mW
˚C
˚C
April, 2002
0.5
0.125
±
0.1
LSI [ LSI COMPUTER SYSTEMS ]
