sta003t STMicroelectronics, sta003t Datasheet - Page 17

• Manufacturer Part Number: sta003t
• Description: Mpeg 2.5 Layer Iii Audio Decoder
• Manufacturer: STMicroelectronics

DLA
Address: 0x46
Type: R/W
Software Reset: 0x00
Hardware Reset: 0x00
DLA register is used to attenuate the level of
audio output at the Left Channel using the butter-
fly shown in Fig. 11. When the register is set to
Figure 11. Volume Control and Output Setup
DLB
Address: 0x47
Type: R/W
Software Reset: 0xFF
Hardware Reset: 0xFF
DLB register is used to re-direct the Left Channel
on the Right, or to mix both the Channels.
DLA7
DLB7
MSB
MSB
b7
b7
0
0
0
0
0
0
0
0
:
:
DLA6
DLB6
b6
b6
0
0
0
1
0
0
0
1
:
:
DSP Right Channel
DSP Left Channel
DLA5
DLB5
b5
b5
0
0
0
1
0
0
0
1
:
:
DLA4
DLB4
b4
b4
0
0
0
0
0
0
0
0
:
:
DLA3
DLB3
X
X
X
X
DRB
DRA
DLA
DLB
b3
b3
0
0
0
0
0
0
0
0
:
:
DLA2
DLB2
b2
b2
0
0
0
0
0
0
0
0
:
:
255
achieved.
A decimal unit correspond to an attenuation step
of 1 dB.
Default value is 0x00, corresponding at the maxi-
mum attenuation in the re-direction channel.
DLA1
DLB1
b1
b1
0
0
1
0
0
0
1
0
:
:
(0xFF),
+
+
DLA0
DLB0
LSB
LSB
b0
b0
0
1
0
0
0
1
0
0
:
:
Output Right Channel
Output Left Channel
the
D97AU667
maximum
OUTPUT ATTENUATION
OUTPUT ATTENUATION
NO ATTENUATION
NO ATTENUATION
Description
Description
-96dB
-96dB
-1dB
-2dB
-1dB
-2dB
:
:
attenuation
STA003T
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is