WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 46

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

WM8959
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In Rx Voice Mode (AINLMODE=01, AINRMODE=01), adjustable gain control is available for the
RXVOICE output by use of the LR4BVOL[2:0] and LL4BVOL[2:0] register fields on the left channel
and by RL4BVOL[2:0] and RR4BVOL[2:0] on the right channel. Both Volume fields for the desired
channel(s) must be set to the same value for true Differential input characteristics. This configuration
is illustrated in Figure 25. The applicable register settings are shown in Table 10.
Table 10 RxVoice Mode Register Settings
Figure 25 RxVoice Mode Signal Paths
Left Channel Rx Voice
Mode
(RXVOICE to AINLMUX)
Right Channel Rx Voice
Mode
(RXVOICE to AINRMUX)
CONFIGURATION
1. Select Rx Voice Mode
2. Enable Rx Voice input as required
Important: These two register fields
must be set to the same value. See
Table 12 for full definitions of these
fields.
1. Select Rx Voice Mode
2. Enable Rx Voice input as required
Important: These two register fields
must be set to the same value. See
Table 13 for full definitions of these
fields.
REGISTER SETTINGS
AINLMODE = 01
LL4BVOL
LR4BVOL
AINRMODE = 01
RL4BVOL
RR4BVOL
PP, May 2008, Rev 3.1
Pre-Production
46