BU9354KV Datasheet, PDF (1/3 Pages) Rohm – System LSI for CD player

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System LSI for CD player
BU9354KV
BU9354KV
BU9354KV is system LSI for CD player that integrates pre-servo amplifier, signal processing, RAM control for anti-shock
and D/A converter for audio into a single chip. Built-in programmable sequencer controller enables to construct optional
servo algorithm and servo filter.
!Applications
Portable CD player
!Features
1) Low power consumption design considering operation
by using RAM controller.
2) Programmable structure including servo filter.
3) Built-inx4 speed CMOS structure RF block and signal
processing circuit.
4) Built-in RAM controller for 4M, 16M DRAM.
5) MP3 decoder connectable.
!External dimensions (Units : mm)
16.0 ± 0.2
14.0 ± 0.1
75
51
76
50
100
1.0 ¹
26
25
0.145
+0.05
-0.03
0.5 ± 0.1
4˚
+6˚
−4˚
0.08 S
0.2
+0.05
−0.04
0.08 M
VQFP100
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Supply voltage
Vcc
Power dissipation
Pd
3.5
V
1.0 ^∗
W
Perating temperature range Topr
−10 ∼ +75
C
Storage temperature range
Tstg
−55 ∼ +125
C
∗ Derating : 10mW/ C for operation above Ta=25 C.
!Recommended Operating Conditions (Ta=25°C)
Parameter
Symbol Min.
Typ.
Max.
Unit
Digital core power supply
DVDD
1.42
1.5
1.65
V
Digital I/O power supply
DVDDIO
1.85
2.0
2.5
V
Analog power supply
AVDD1
1.95
2.0
2.50
V
Audio analog power supply AVDD2 1.95
2.25
2.65
V
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