LG PRADA KE850 - Camera Screen and Post-Capture Options; Camera Screen Options; Post-Capture Options

3. TECHNICAL BRIEF
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3.13.1. Audio amplifier sub system IC with 3D effect
Audio amplifier sub system IC is an audio power amplifier capable of delivering 500mW of
continuous average power into a mono 8 load, 25mW per channel of continuous average power into
stereo 32 single-ended (SE) loads and DAC. The LM4934 features a 32-step digital volume control
and eight distinct output modes. The digital volume control, 3D enhancement, and output modes
(mono/SE/OCL) are programmed through a two-wire I2C interface that allows flexibility in routing
and mixing audio channels.
Figure 20 Audio amplifier Sub-system IC
Figure 21 Audio signal distribute analog switch
(1005)
AUDIO AMP
47KR233
C230
1u
2V85_IO
C235 220n
PLL_VDD
B1 F5
R3D_IN
E4
R3D_OUT
D6
RHP
G6
RLS+
G4
RLS-
D2
R_IN
SCL_SCK
C5
C4
SDA_SDI
B6
VDD_I_O
I2S_SDI
B2
A3
I2S_WS
L3D_IN
F3 F4
L3D_OUT
E5
LHP
D5
LINEOUT
G3
LLS+
LLS-
G1
E3
L_IN
A2
MCLK
B4
MODE
E2
M_IN
D3
NC
C3
PLL_GND
C1
PLL_IN
PLL_OUT
C2
ADDR_ENB
A5
AGND1
D1
F1
AGND2
F6
AGND3
AVDD1
G2
AVDD2
G5 C6
AVDD3
BYPASS
D4
CHP
E6
DGND
A1
DVDD
A6
EP+
F2
EP-
E1
A4
GPIO
I2C_VDD
B5
B3
I2S_CLK
U205
LM4934ITL
R230 0
2V85_IO
C238 220n
C249 2.2u
0.1u
C233
2V85_IO
L202 100nH
L201 100nH
C236 220n
C234
0.01u
TP202
39p
C247
C241 220n
R227
NA
C232
1u
C243
C248
NA
39p
0.1u
C228
1u
C226
TP203
C231
0.1u
C244
NA
2V72_IO
100KR234
FB203
R228
0
C227
R229
430
1u
C250
1u
R232 47K
TP201
C229
0.1u
3V3_AMP
SPK_N
SPK_P
MCLK_ATI
HSO_R
HSO_L
26M_DAC
I2S_WS
I2S_SDO
I2S_CLK
AMP_IN_R
AMP_IN_L
SDA
SCL
1B0
2
1B1
8
1S
6
2A
2B0
3
2B1
4
7
2S
5
GND VCC
10
FSA2267AL10X
U103
1A
91
0.1u
C121
R140 0
0R141
R116
100K
2V85_IO
MIDI_R
HEADSET_R
HEADSET_L
DSR
SNDOUT_L
SNDOUT_R
MIDI_L
0.1u
4
2B1
2S
7
GND
510
VCC
C126
FSA2267AL10X
9
1A1B0
1
1B1
2
1S
8
2A
6
3
2B0
U105
2V85_IO
100K
R122
AMP_IN_L
AMP_IN_R
MIDI_R
FM_L
MIDI_L
FM_R
FM_SND_SEL