STA014B View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STA014B
STMicroelectronics
STA014B Datasheet PDF : 45 Pages
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STA014-STA014B-STA014T
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
255 (0xFF), the maximum attenuation is
achieved.
A decimal unit correspond to an attenuation step
of 1 dB.
DSP Left Channel
DSP Right Channel
DLA
X
DLB
X
DRB
X
DRA
X
Output Left Channel
+
Output Right Channel
+
D97AU667
DLB
Address: 0x47 (71)
Type: R/W
Software Reset: 0xFF
Hardware Reset: 0xFF
MSB
b7
DLB7
0
0
0
:
0
b6
DLB6
0
0
0
:
1
b5
DLB5
0
0
0
:
1
b4
DLB4
0
0
0
:
0
b3
DLB3
0
0
0
:
0
b2
DLB2
0
0
0
:
0
b1
DLB1
0
0
1
:
0
LSB
b0
DLB0
0
1
0
:
0
Description
OUTPUT ATTENUATION
NO ATTENUATION
-1dB
-2dB
:
-96dB
DLB register is used to re-direct the Left Channel
on the Right, or to mix both the Channels.
Default value is 0x00, corresponding at the maxi-
mum attenuation in the re-direction channel.
DRA
Address: 0x48 (72)
Type: R/W
Software Reset: 0X00
Hardware Reset: 0X00
MSB
b7
DRA7
0
0
0
:
0
b6
DRA6
0
0
0
:
1
b5
DRA5
0
0
0
:
1
b4
DRA4
0
0
0
:
0
b3
DRA3
0
0
0
:
0
b2
DRA2
0
0
0
:
0
b1
DRA1
0
0
1
:
0
LSB
b0
DRA0
0
1
0
:
0
Description
OUTPUT ATTENUATION
NO ATTENUATION
-1dB
-2dB
:
-96dB
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
255 (0xFF), the maximum attenuation is
achieved.
A decimal unit correspond to an attenuation step
of 1 dB.
21/45
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