sta015t STMicroelectronics, sta015t Datasheet - Page 21

• Manufacturer Part Number: sta015t
• Description: Mpeg 2.5 Layer Iii Audio Decoder With Adpcm Capability
• Manufacturer: STMicroelectronics

DLA register is used to attenuate the level of
audio output at the Left Channel using the butter-
fly shown in Fig. 18. When the register is set to
Figure 18. Volume Control and Output Setup
DLB
Address: 0x47 (71)
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.
DRA
Address: 0x48 (72)
Type: R/W
Software Reset: 0X00
Hardware Reset: 0X00
DRA register is used to attenuate the level of
audio output at the Right Channel using the but-
terfly shown in Fig. 11. When the register is set to
DRA7
DLB7
MSB
MSB
b7
b7
0
0
0
0
0
0
0
0
:
:
DRA6
DLB6
b6
b6
0
0
0
1
0
0
0
1
:
:
DRA5
DLB5
b5
b5
DSP Right Channel
0
0
0
1
0
0
0
1
DSP Left Channel
:
:
DRA4
DLB4
b4
b4
0
0
0
0
0
0
0
0
:
:
DRA3
DLB3
X
X
X
X
DRB
DRA
DLA
DLB
b3
b3
0
0
0
0
0
0
0
0
:
:
DRA2
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.
255
achieved.
A decimal unit correspond to an attenuation step
of 1 dB.
DRA1
DLB1
b1
b1
0
0
1
0
0
0
1
0
:
:
(0xFF),
(0xFF),
+
+
DRA0
DLB0
LSB
LSB
b0
b0
Output Right Channel
0
1
0
0
0
1
0
0
:
:
Output Left Channel
the
the
STA015-STA015B-STA015T
D97AU667
maximum attenuation
maximum attenuation
OUTPUT ATTENUATION
OUTPUT ATTENUATION
NO ATTENUATION
NO ATTENUATION
Description
Description
-96dB
-96dB
-1dB
-2dB
-1dB
-2dB
:
:
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