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SONY
CXD1244S
3}
Input
data
timing
Attenuate
function
can be
activated
by
means
of
ATT,
Shift
and
Latch.
Transfer format
is
indicated
as
follows,
,
12
bit
ATT
DOOGGOOOOCOGCX
LSB
11
10
9
6
7
6
5
4
3
2
MSB
SHIFT
L^jm^ju^nnru
LATCH
(1)
ATT
data
is
a
12
bit
word
length
and
LSB
first
transfer
ATT
data
is
available
000(H)
to
400(H).
(2)
When
Latch
is
at
"L",
ATT
cannot be
transferred.
(3)
With
INIT
at
|
.
400
(H)
is
set
as
ATT
data.
ATT
3
OOO
i
h)
POWER
ON
SOFT
I
•
The
transition
from
ATT1
to
ATT2
takes place
in
soft
muting
operation.
•
During attenuate operation
SOFT
is
set
to
either
ON
or
OFF,
it
turns
back
to
the
original
ATT
data.
•
When ATT
data
=400
(H)
Noise shaping
is
not applied regardless
of
NS ON
or
OFF.
When
ATT
data
=400
(H)
Noise shaping
is
applied regardless
of
NS ON
or
OFF.
4.
Digital
deemphasis
By
turning
EMP
to
"H",
deemphasis
can
be
applied
by
means
of
IIR
filter,
Time
constant
of
de-emphasis
are
ti=50us
and
w=15hs
at
f
s
.44.1kHz.
-33-
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