LG KT520 Service Manual page 57

3. TECHNICAL BRIEF
Figure 3-3-2. Audio Interface Detailed Diagram(AB3000)
B1
VSSBUCK
C618 0.1u
D1
PBIAS
10V
F1
SIMVCC SIMVCC
1u C622
Close to ABB
J2
SIMRST_N SIMRST_n
H5
SIMCLK SIMCLK
H2
SIMDAT SIMDAT
D4
SCK1 I2S0_CLK
D3
WS1 I2S0_WS
C2
SDI1 I2S0_ULD
C1
SDO1 I2S0_DLD
E4
SCK2 I2S1_CLK
C3
WS2 I2S1_WS
D2
SDI2 I2S1_ULD
F4
SDO2 I2S1_DLD
K8
MIC1P
J8
MIC1N
L8
MIC2P
M9
MIC2N
M10
MIC3P
H8
MIC3N
K9
MIC4P
L9
MIC4N
M7
CCO1
K7
CCO2
M2
SPKRP
M3
SPKRN
M4
BEARP
J6
BEARN
K6
AUXO1
M6
AUXO2
L10
LINEIN1
K10
LINEIN2
L5
MIDR
C631 47n
J5
DEC3
J4
DEC4
C633 C634
0.1u 0.1u
SWBOOST
A4
BOOST_ISENSE+
B5
BOOST_ISENSE-
C5
V_BOOST
B3
BOOST_SW1
C4
BOOST_SW2
B4
BOOST_SW3
A3
BOOST_FB+
D5
VSSBOOST
E5
LGE Internal Use Only
Local Ground Plane
Use Multiple Vias
Main MIC
MIC1P
MIC1N
MIC2P CCO1
MIC2N
MIC1P
MIC1N
CCO1
CCO2
SPKRP
SPKRN
Speaker Amp.
BEARP
BEARN
EAR_R
EAR_L
MIDR
C639 47n
R619 1% 10K
SPKRN
C640 47n
R620 1% 10K
SPKRP
ACC_GP13_SPK_AMP_EN
Figure 3-3-3 . Audio Section scheme
- 58 -
Close to Main MIC
R612
0
MIC600
C624 0.1u
1
OUT
2
G1
C625 0.1u
3
G2
4
G3
5
PWR
6
G4
SPM0204LE5-QB
VBAT
C630
2.2u
R617 1% 39K
R618 1% 15
U601 TPA6205A1ZQVR
BEARP
C3 A3
IN- VDD
C2 B3 R621 1% 15
IN+ VO+ BEARN
B1 A1
_SHUTDOWN VO-
C1 B2
BYPASS GND
R625 1% 39K
ACC_GP27_AMP_SW_EN
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
VBAT
U602 FSA2268TUMX
10 8
1B0 1A SPK_RCV_P
1 7
1B1 S1
2 5
2B0 2A SPK_RCV_N
3 6
2B1 S2
4 9
GND VCC
C646
0.01u