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SONY
CX02G60M
Command
input
and
audio output
Attenuator data consists
of
1
2-bit,
thus there are
1
,024 various
settings.
The
relationship
between
command
and
output
is
shown
in
the chart below.
Attenuator data
Audio
output
400(H)
OdB
3FF
(H)
3FE(H>
to
001
(H)
-0.0085dB
-0,01
7dB
to
-60.206dB
000
|H}
-00
An
attenuator value
between
001
(H)
and
3FF
(H)
can be
calculated
by the
following equation.
ATT=20log
I
input
data
\
dB
V
1024
1
Example:
Suppose
the attenuator data
is
3FA
(H).
'
1018
'
ATT=20log
V
1024/
J
dB=-0.051dB
@
De-emphasis
De-emphasis can be
set
by two
methods
which
are selected
by
the
CTL
pin:
by a
serial
transfer
of
mode
data, or direct input
pin.
CTL
"H": direct input
method
"L":
serial
transfer
•
Serial transfer of
mode
data (CTL:
"L")
Emphasis
ON/OFF
is
performed by
the attenuator
mode
EMP
EMP:
"H":
ON
L":
OFF
Fs
Selection
System
mode
Fs 32
and
Fs
48.
Fs
~~~~~~^^
32k
44.1k
48k
Fs32
H
L
L
Fs48
H
L
H
• Direct input
(CTL:
"H")
Emphasis
ON/OFF
is
performed
at
the
ATT
pin,
ATT:
"H":
ON
"L":
OFF
Fs
Selection
Performed
at
SHIFT,
LATCH
pin
Fs
""""""---^^
32k
44.1k
48k
SHIFT
H
L
L
LATCH
H
L
H
Mute
Output
is
muted
when
MUTE
is
raised
"H",
In
this
case
the output
is
zero
data.
-
56-
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