wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 81
wm8351
Manufacturer Part Number
wm8351
Description
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8351.pdf
(328 pages)
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Production Data
w
The gain for microphone pre-amp and auxiliary input (IN3L/IN3R) signals can be independently
adjusted for each output mixer. This does not affect the volume of the same signals going into the
separate record mixer. The level of the DAC output signals can be adjusted using the DAC’s digital
volume control function (see Table 32).
R96 (60h)
Output Left
Mixer
Volume
R97 (61h)
Output Right
Mixer
Volume
Table 39 Controlling the Gain of Signals Going into the Output Mixers
ADDRESS
15:13
11:9
3:1
7:5
3:1
7:5
BIT
INL_MIXOUTL_VOL
[2:0]
INR_MIXOUTL_VO
L [2:0]
IN3L_MIXOUTL_VO
L [2:0]
INL_MIXOUTR_VO
L [2:0]
INR_MIXOUTR_VO
L [2:0]
IN3R_MIXOUTR_V
OL [2:0]
LABEL
DEFAULT
000
000
000
000
000
000
Left input PGA volume control to left
output mixer.
000 = Path disabled (disconnected)
001 = -12dB gain through mixer
010 = -9dB gain through mixer
…
111 = +6dB gain through mixer
Right input PGA volume control to left
output mixer.
000 = Path disabled (disconnected)
001 = -12dB gain through mixer
010 = -9dB gain through mixer
…
111 = +6dB gain through mixer
IN3L amplifier volume control to left
output mixer
000 = Path disabled (disconnected)
001 = -12dB gain through mixer
010 = -9dB gain through mixer
…
111 = +6dB gain through mixer
Left input PGA volume control to right
output mixer.
000 = Path disabled (disconnected)
001 = -12dB gain through mixer
010 = -9dB gain through mixer
…
111 = +6dB gain through mixer
Right input PGA volume control to
right output mixer.
000 = Path disabled (disconnected)
001 = -12dB gain through mixer
010 = -9dB gain through mixer
…
111 = +6dB gain through mixer
IN3R amplifier volume control to right
output mixer.
000 = Path disabled (disconnected)
001 = -12dB gain through mixer
010 = -9dB gain through mixer
…
111 = +6dB gain through mixer
DESCRIPTION
PD, June 2009, Rev 4.1
WM8351
81
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