sta015t-013tr STMicroelectronics, sta015t-013tr Datasheet - Page 37

• Manufacturer Part Number: sta015t-013tr
• Description: Mpeg 2.5 Layer Iii Audio Decoder With Adpcm Capability
• Manufacturer: STMicroelectronics

Bass_Freq <= Treble_Freq
Bass_Freq > 0
(suggested range: 20 Hz < Bass_Freq < 750 Hz)
Example:
Bass = 200Hz
Treble = 3kHz
TFS
BFS
TREBLE_ENHANCE
Address: 0x7B (123)
Software Reset: 0x00
Hardware Reset: 0x00
Signed number (2 complement)
This register is used to select the enhancement or attenuation STA015 has to perform on Treble Frequen-
cy range at the digital signal.
A decrement (increment) of a decimal unit corresponds to a step of attenuation (enhancement) of 1.5dB.
The allowed Attenuation/Enhancement range is [-18dB, +18dB].
MSB
15
15
0
0
b7
0
0
0
0
0
0
1
1
1
1
1
MSB
TE7
b7
14
14
0
0
b6
0
0
0
0
0
0
1
1
1
1
1
13
13
0
0
TE6
b6
b5
0
0
0
0
0
0
1
1
1
1
1
12
12
0
0
11
11
b4
1
0
0
0
0
0
0
0
1
1
1
1
1
TE5
b5
10
10
0
0
b3
1
1
1
1
0
0
1
0
0
0
0
9
1
9
0
TE4
b4
b2
1
0
0
0
0
0
1
1
1
1
1
8
1
8
0
b1
0
1
1
0
0
0
1
1
1
0
0
7
1
7
1
TE3
b3
6
0
6
1
LSB
b0
0
1
0
1
1
0
1
1
0
0
0
:
:
:
:
5
1
5
0
TE2
b2
STA015 STA015B STA015T
ENHANCE/ATTENUATION
4
1
4
0
3
1
3
1
1.5dB step
TE1
+16.5
+13.5
+13.5
b1
-16.5
+18
+15
-15
-18
+1
-1
0
2
0
2
0
1
0
1
0
LSB
TE0
b0
37/55
0
0
0
0