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WM8994ECS/R Folha de dados(PDF) 187 Page - Cirrus Logic

Nome de Peças WM8994ECS/R
Descrição Electrónicos  Multi-channel Audio Hub CODEC for Smartphones
PDF  363 Pages
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Fabricante Electrônico  CIRRUS [Cirrus Logic]
Página de início  http://www.cirrus.com
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WM8994ECS/R Folha de dados(HTML) 187 Page - Cirrus Logic

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WM8994
Rev 4.6
187
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R785 (0311h)
AIF2 Control
(2)
8
AIF2_MONO
0
AIF2 DSP Mono Mode
0 = Disabled
1 = Enabled
Note that Mono Mode is only supported when
AIF2_FMT = 11. The number of BCLK cycles
per LRCLK frame must be less the 2 x AIF2
Word Length.
Table 99 AIF2 Mono Mode Control
AIF2 - COMPANDING
The WM8994 supports A-law and
-law companding on both transmit (ADC) and receive (DAC) sides
of AIF2. This is configured using the register bits described in Table 100.
For more details on Companding, see the Audio Interface AIF1 description above.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R785 (0311h)
AIF2 Control
(2)
4
AIF2DAC_C
OMP
0
AIF2 Receive Companding Enable
0 = Disabled
1 = Enabled
3
AIF2DAC_C
OMPMODE
0
AIF2 Receive Companding Type
0 = µ-law
1 = A-law
2
AIF2ADC_C
OMP
0
AIF2 Transmit Companding Enable
0 = Disabled
1 = Enabled
1
AIF2ADC_C
OMPMODE
0
AIF2 Transmit Companding Type
0 = µ-law
1 = A-law
Table 100 AIF2 Companding
AIF2 - LOOPBACK
The AIF2 interface can provide a Loopback option. When the AIF2_LOOPBACK bit is set, then AIF2
digital audio output is routed to the AIF2 digital audio input. The normal input (DACDAT2) is not used
when AIF2 Loopback is enabled.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R785 (0311h)
AIF2 Control
(2)
0
AIF2_LOOP
BACK
0
AIF2 Digital Loopback Function
0 = No loopback
1 = Loopback enabled (ADCDAT2 data output
is directly input to DACDAT2 data input).
Table 101 AIF2 Loopback



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