CXA2581N
RF Signal Processor for CD Players
Description
The CXA2581N is an RF signal processing IC for
compact disc players.
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)
Pin Configuration
DC_OFST
RFDCO
RFDCI
TE_BAL
30 pin SSOP (Plastic)
Absolute Maximum Ratings
• Supply voltage
V
CC
7
• Storage temperature
Tstg –65 to +150
• Allowable power dissipation
P
D
620
V
°C
mW
Operating Conditions
• Operating supply voltage range
V
CC
– 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
RFC
VFC
BST
RFG
V
CC
CEI
VC
FEI
17
14
DVC
CE
TE
30
29
28
27
26
25
24
23
22
21
20
19
18
16
1
LD
2
PD
3
EQ_IN
4
AC_SUM
5
GND
6
A
7
B
8
C
9
D
10
E
11
F
12
SW
13
DV
CC
15
RFAC
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–
FE
E98739A97-PS
SONY [ SONY CORPORATION ]
