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STA328 Folha de dados(PDF) 23 Page - STMicroelectronics

Nome de Peças STA328
Descrição Electrónicos  2.1 HIGH EFFICIENCY DIGITAL AUDIO SYSTEM
PDF  41 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA328 Folha de dados(HTML) 23 Page - STMicroelectronics

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STA328
Table 17. Channel Volume as a Function of CxV (7..0)
7.9 AUTOMODE REGISTERS
7.9.1
Register – AutoModes EQ, Volume, GC (Address 0Bh)
Table 18. AutoMode EQ
By setting AMEQ to any setting other than 00 enables AutoMode EQ. When set, biquads 1-4 are not user
programmable. Any coefficient settings for these biquads will be ignored. Also when AutoMode EQ is used
the pre-scale value for channels 1-2 becomes hard-set to –18dB.
Table 19. AutoMode Volume
CxV (7..0)
Volume
00000000 (00h)
+48dB
00000001 (01h)
+47.5dB
00000010 (02h)
+47dB
……
01100001 (5Fh)
+0.5dB
01100000 (60h)
0dB
01011111 (61h)
-0.5dB
……
11111110 (FEh)
-79.5 dB
11111111 (FFh)
Hard Channel Mute
D7
D6
D5
D4
D3
D2
D1
D0
AMPS
AMGC1
AMGC0
AMV1
AMV0
AMEQ1
AMEQ0
10
0
0
0
0
0
AMEQ (1,0)
Mode (Biquad 1-4)
00
User Programmable
01
Preset EQ – PEQ bits
10
Auto Volume Controlled Loudness Curve
11
Not used
AMV (1,0)
Mode (MVOL)
00
MVOL 0.5dB 256 Steps (Standard)
01
MVOL Auto Curve 30 Steps
10
MVOL Auto Curve 40 Steps
11
MVOL Auto Curve 50 Steps



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