WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 57

• Manufacturer Part Number: WM8959
• Description: Mobile Multimedia DAC with Dual-mode Class AB/D Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

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Pre-Production
OUTPUT SIGNAL PATHS ENABLE
The output mixers and drivers can be independently enabled and disabled as described in Table 23.
Note that the headphone outputs LOUT and ROUT have dedicated volume controls. As a result, the
output PGAs LOPGA and ROPGA do not need to be enabled to provide volume control for the LOUT
and ROUT outputs.
Table 23 Output Signal Paths Enable
R3 (03h)
R1 (01h)
REGISTER
ADDRESS
BIT
13
12
11
10
12
11
10
8
7
6
5
4
9
8
LON_ENA
(rw)
LOP_ENA
(rw)
RON_ENA
(rw)
ROP_ENA
(rw)
SPKPGA_ENA
(rw)
LOPGA_ENA
(rw)
ROPGA_ENA
(rw)
LOMIX_ENA
(rw)
ROMIX_ENA
(rw)
SPK_ENA
(rw)
OUT3_ENA
(rw)
OUT4_ENA
(rw)
LOUT_ENA
(rw)
ROUT_ENA
(rw)
LABEL
DEFAULT
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
LON Line Out and LONMIX Enable
0 = disabled
1 = enabled
LOP Line Out and LOPMIX Enable
0 = disabled
1 = enabled
RON Line Out and RONMIX Enable
0 = disabled
1 = enabled
ROP Line Out and ROPMIX Enable
0 = disabled
1 = enabled
SPKMIX Mixer and Speaker PGA Enable
0 = disabled
1 = enabled
Note that SPKMIX and SPKPGA are also
enabled when SPK_ENA is set.
LOPGA Left Volume Control Enable
0 = disabled
1 = enabled
ROPGA Right Volume Control Enable
0 = disabled
1 = enabled
LOMIX Left Output Mixer Enable
0 = disabled
1 = enabled
ROMIX Right Output Mixer Enable
0 = disabled
1 = enabled
SPKMIX Mixer, Speaker PGA and Speaker
Output Enable
0 = disabled
1 = enabled
OUT3 and OUT3MIX Enable
0 = disabled
1 = enabled
OUT4 and OUT4MIX Enable
0 = disabled
1 = enabled
LOUT (Left Headphone Output) Enable
0 = disabled
1 = enabled
ROUT (Right Headphone Output) Enable
0 = disabled
1 = enabled
DESCRIPTION
PP, May 2008, Rev 3.1
WM8959
57