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SONY.
Digital Filter
for
Audio
Applications
CXD2560M
Description
The
CXD2560M
is
an
8-times
oversampling
digital
filter
LSI
for
digital
audio
applications.
It
features
built-in
dual
filters
for
both
left
and
right
channels
as
well
as a
noise shaper,
attenuator, soft-muting,
and de-emphasis
controls.
Features
•
Built-in
8-times
oversampling
digital
filters
for
both
channels.
•
Filter
characteristics
Hippie:
±
0.00001dB
or less
(Oto 20k)
Attenuation:
-lOOdB
or less
(24.1
k
to)
Noise
shaper,
attenuator,
sort-muting
and
de-emphasis
functions
•
I/O
format
Input
:
2's
complement
MSB/LSB
first
(serial)
(16-bit or 18-bit
slot
selectable)
Output:
2"s
complement
MSB/LSB
first
(serial)
(18-bit
or 20-
bit
slot
selectable)
Applications
CD, DAT,
BS
tuner,
and
digital
amplifiers
Structure
Siiicon-gate
CMOS
IC
Absolute
Maximum
Ratings
(Ta
=
25
°C
•
Supply
voltage
Vod
-0.3
to
+7.0
• Input voltage
VI
•
Allowable
power
dissipation
Pd
-0.3
to
Voo+0.3
V
i
Sto rag e
te
m
pe
rat
u
re
Tstg
500
mW
(Ta=+75
°C
)
50
to
+1
50
*C
I
Recommended
Operating Conditions
• Supply
vottage
Vdd
4.75
to
5.25
V
• Operating temperature
Topr
-20
to
+75
t;
•
OSC
frequency
fx
1
5
to
27
MHz
Block
Diagram
E91411A22-ST
-49-
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