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WM9090ECS/R データシート(PDF) 20 Page - Wolfson Microelectronics plc

部品番号 WM9090ECS/R
部品情報  Ultra Low Power Audio Subsystem
PDF  81 Pages
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メーカー  WOLFSON [Wolfson Microelectronics plc]
ホームページ  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM9090ECS/R データシート(HTML) 20 Page - Wolfson Microelectronics plc

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WM9090
Production Data
w
PD, November 2010, Rev 4.1
20
OUTPUT SIGNAL PATH
The WM9090 output mixers provide a high degree of flexibility, allowing configurable operation of
multiple signal paths through the device to a variety of analogue outputs. The outputs comprise a
ground referenced headphone driver and Class D loudspeaker driver. See “Analogue Outputs” for
further details of these outputs.
The WM9090 output signal paths and control registers are illustrated in Figure 3.
Figure 3 Control Registers for Output Signal Path
OUTPUT SIGNAL PATHS ENABLE
The output mixers and drivers can be independently enabled and disabled as described in Table 4.
See “Power Sequences and Pop Suppression Control” for details of additional control bits relating to
the Headphone Output configuration.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R1 (01h)
Power
Management
(1)
12
SPKOUTL_ENA
0
Speaker Output Enable
0 = Disabled
1 = Enabled
9
HPOUT1L_ENA
0
Headphone Output (HPOUTL) input
stage enable
0 = Disabled
1 = Enabled
8
HPOUT1R_ENA
0
Headphone Output (HPOUTR)
input stage enable
0 = Disabled
1 = Enabled
R3 (03h)
Power
Management
8
SPKLVOL_ENA
0
Speaker PGA Enable
0 = Disabled
1 = Enabled



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