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Sony Semiconductor Electronic Components Datasheet

CXA2581N Datasheet

RF Signal Processor for CD Players

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CXA2581N
RF Signal Processor for CD Players
Description
The CXA2581N is an RF signal processing IC for
compact disc players.
30 pin SSOP (Plastic)
Features
• Wide band RF signal processing
• RF system VCA circuit
• RF system equalizer (supports CAV mode)
• Supports pickups with built-in RF summing
amplifier
• Low current consumption mode (EQ Pass mode)
• RW/ROM switching mode
• Center error amplifier
• Output DC level shift circuit
• TE balance adjustment function
Functions
• RF AC summing amplifier, equalizer, VCA
• RF DC summing amplifier
• Focus error amplifier
• Tracking error amplifier
• Center error amplifier
• Automatic power control
• VC buffer amplifier (analog block, digital block)
Absolute Maximum Ratings
• Supply voltage
VCC
• Storage temperature Tstg
• Allowable power dissipation
PD
7
–65 to +150
620
V
°C
mW
Operating Conditions
• Operating supply voltage range
VCC – GND 3.4 to 5.5
V
(0V Vcc – DVcc < 2V)
Note) Care should be taken for the operating voltage.
See page 18.
• Operating temperature Topr –30 to +85 °C
Pin Configuration
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E98739A97-PS


Sony Semiconductor Electronic Components Datasheet

CXA2581N Datasheet

RF Signal Processor for CD Players

No Preview Available !

Block Diagram
CXA2581N
4 3 23 24 26 25
AC
SUM
AC
VCA
EQ
15 RFAC
EQ_ON/OFF
RW/ROM
30 DC_OFST
A6
B7
C8
D9
F 10
E 11
VC RW/ROM
DVC
VOFST DVC
RW/ROM
VC
RW/ROM
VC
gm
VOFST
DVCC
gm
VOFST VC
RW/ROM
DVCC 29 RFDCI
28 RFDCO
DVCC 17 FEI
16 FE
19 TE_BAL
RW/ROM
18 TE
SW 12
PD 2
LD 1
B
C
A
D
APC
VCC
DVC
DVC
VC
RW/ROM
APC-OFF (Hi-Z)
RW/ROM
(H/L)
DVC
VC
VCC
VC DVC
DVCC 21 CEI
20 CE
VOFST
VC 13 DVCC
22 5
27
14
–2–


Part Number CXA2581N
Description RF Signal Processor for CD Players
Maker Sony Corporation
Total Page 22 Pages
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