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RC-999II
SEMICONDUCTOR DATA
Function description
~
2-b) Loudness
e Data format
Data D8 in the Volume L data is the loudness ON/OFF
The TC9188F
can be controlled as desired using data
data. Loudness is ON when D8 is "H"', and OFF when it is
from the controller. The data consists of 16 bits.
"L'. Loudness is turned ON/OFF simultaneously for the L
and
R channels.
Data
D8
in the Volume
R data has no
function and can either be ''L" or "'H"'.
{LSB)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
(MSB)
DATA _ [ai[a2z] a3] aa] 01] 02] 03] 04] 05] 06] D7 |
Da[1"[
OT O"T 1")
2-6)
T
'wal (B
Treble)
"Cc
One contro
ass,
treble
ck
|
|
| |
|
| | | |
|
|
|
When Bass/Treble is selected with data bits 1 to 4 (A1 to
A4), data bits 5 to 8 (D1 to D4) defines the tone control
1) A1~A4 (bits 1~4)
Data
bits
1 to 4 are used to select the L Volume,
R
Volume, Bass, Treble or Fader VR.
D1
D2
D3
D4
L
H
H
L
Volume (L)
H
L
H
L
Volume (R)
L
L
H
L
Bass
H
H
L
L
Treble
ee
ae
Fader
H
L
L
L
be
ek
H | w [H
2) D1~D8 (bits 5~ 12)
Hj;
H | H |
~-
468
Data bits 5 to 12 select the control step of the selected
L
H {| H
—
60B
VR. The Bass and Treble controls uses only D1 to D4, and
L
H
H
—
8dB
the Fader control uses only D1 to D4 and D8.
H
L | 4H
— 10dB
2-a) Volume L/R
H
L
H
— 12dB
When the Volume
L/R control is selected by data bits 1
to 4 (Al to A4), data bits 5 to 12 (D1 to D8) define the
Note: Other data combinations than above may make the
volume attenuation data. D1 to D4 are for ATT2 with 1dB/
volume steps unstable.
'
step, and D5 to D8 are for ATT1 with 10dB/step.
—s
D1
| D2
| D3 | D4
D5 | D6 | D7
L
L
L | L
ie
L
L
H
L
L
L
H
L
k.
L_[
4H
L
L
L
H
L
H
H
;
L
L
H
H
Le.
L
L
H
L
bs
L
H
H
L
H
L
H
L
H
L
|
oH
H
ks
L
H
H
H
H
H
L
H
H
H
L
L
L
H
2
E
:
a
* Loudness
L
H
nie)
Al
Note: Other data combinations than above may make the
volume steps unstable.
26
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