wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 58

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

WM8400
w
INPUT PGA ENABLE
The Input PGAs are enabled using register bits LIN12_ENA, LIN34_ENA, RIN12_ENA and
RIN34_ENA as described in Table 19.
Table 19 Input PGA Enable
Figure 26 LIN4 and RIN4 as Rx Voice Inputs with Direct Low Power Path to Ear Speaker
Figure 27 LIN4 or RIN4 as Line Inputs
R3 (03h)
REGISTER
ADDRESS
7
6
5
4
BIT
LIN34_ENA
(rw)
LIN12_ENA
(rw)
RIN34_ENA
(rw)
RIN12_ENA
(rw)
LABEL
DEFAULT
0b
0b
0b
0b
LIN34 Input PGA Enable
0 = disabled
1 = enabled
LIN12 Input PGA Enable
0 = disabled
1 = enabled
RIN34 Input PGA Enable
0 = disabled
1 = enabled
RIN12 Input PGA Enable
0 = disabled
1 = enabled
DESCRIPTION
PP, April 2009, Rev 3.0
Pre-Production
58