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LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. RF Circuit Technical Brief
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Copyright
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2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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4.6 WCDMA Band1/8 Low Noise Amplifier
[Figure 4.6-1] Schematic Diagram of WCDMA Band1/8 LNA (BGA735L16)
[Table 4.6-1] BGA735L16 Pin description
10
5
C
p0
00
1
DNI
L511
5.6p
L517
897.5,942.5MHz
LT56B
FL2
ANT
RX
TX
GND1
GND6
GND2
GND5
GND3
GND4
897.5 MHz
SAFEA897MFL0F00
FL1
5
2
4
1
3
IN1
OUT
IN2
G1
G2
AWT6224R
U505
8
7
9
6
10
5
11
4
12
3
13
2
14
1
15
PGND
VEN_900
GND3
RFIN_900
RFOUT_900
VMODE1
VCC
VBATT
VCCA
NC_VMODE2
GND2
RFIN_IMT
GND1
VEN_IMT
RFOUT_IMT
1nF
C503
DNI
L530
1.8p
C564
47p
C579
ANTENNA_PAD
ANT501
C5001
1000p
C502
10p
L
K
J
I
H
G
F
E
D
C
B
A
12
11
10
9
8
7
6
5
4
3
2
1
LGE Internal Use Only
L
K
J
I
H
G
F
E
D
C
B
A
12
11
10
9
8
7
6
5
4
3
2
1
10u
C541
2V85_VRF
2V85_VRF
68nH
C513
2V85_VFM
1800
FB504
BLM15BD182SN1D
BLM15BD182SN1D
FB505
1800
2V85_VRF
100n
C545
10n
C552
47p
C553
10K
R504
SAYFP1G95AA0B00
FL502
7
5
8
4
9
2
3
1
6
ANT
RX
TX
GND1
GND6
GND2
GND5
GND3
GND4
0.1u
C538
SW500
RF500
G2
ANT
RF
G1
2V85_VRF
2V85_VRF
2V85_VRF
2V85_VRF
2V85_VRF
VBAT
C534
220n
3.3p
C533
C519
82p
1
N
S2
81
D
H5
1
ML
B
FB500
00
81
2V85_VRF
VBAT
C550
DNI
C551
1p
18n
L502
1.5p
C539
2V85_VRF
1V8_SD
5.1n
L503
C531
2.2p
2.2p
C520
2.2p
C514
ANTENNA_PAD
GND500
2V85_VRF
1V5_VRF
L506
3.3n
10p
L505
U502
NL27WZ32USG
5
4
6
3
7
2
8
1
A1
VCC
B1
Y1
Y2
B2
GND
A2
1u
C542
DNI
C557
C559
10p
FB506
1800
BLM15BD182SN1D
BLM15BD182SN1D
FB503
1800
C517
0.1u
1
N
S2
81
D
H5
1
ML
B
00
81
FB501
2V85_VRF
C511
0.1u
C509
0.1u
VBAT VBAT
U503
PMB6952
7
K
7J
6J
6
H
4
H
8
G
7
G
6
G
5
G
4
G
7F
6F
5F
4F
8
E
7
E
6
E
5
E
4
E
2
E
8
D
7
D
6
D
5
D
4
D
01
C
8
C
9
B
5
B
L8
C5
L7
J4
C1
B1
H3
E1
K2
D1
G9
G1
H9
F1
C7
J1
B10
H1
H8
D9
H7
C9
J8
A9
K9
K1
F10
L2
G10
J9
H10
K10
D10
A5
E10
A4
F8
C6
A6
B3
L4
A2
L3
E3
L10
C2
L9
B2
L6
D2
L5
A8
D11
C3
C11
J11
H11
K3
G11
H5
F11
K4
E11
11
L
1L
11
A
1
A
5J
9
E
3
D
4
B
6
K
8
K
3J
01
J
4
C
8
B
6
B
11
K
5
K
2J
2
H
9F
11
B
01
A
7
A
3F
3
G
2
G
7
B
3
A
2F
5
V1
D
D
V
5
V1
B
B
X
R
D
D
V
5
V1
LL
P
X
R
D
D
V
5
V1
LL
P
XT
D
D
V
58
V1
O
DL
D
D
V
58
V1
S
U
B
D
D
V
8
V2
OI
X
R
D
D
V
8
V2
O
C
V
X
R
D
D
V
8
V2
P
C
X
R
D
D
V
8
V2
EF
X
R
D
D
V
8
V2
P
C
XT
D
D
V
8
V2
O
C
V
XT
D
D
V
8
V2
EF
XT
D
D
V
8
V2
B
B
XT
D
D
V
8
V2
O
C
V
D
D
V
8
V2
S
Y
SF
D
D
V
8
V2
X
R
D
D
V
8
V2
GI
D
D
D
V
8
V2
S
AI
B
D
D
V
8
V2
XI
M
D
D
V
8
V2
XT
D
D
V
5
V1
X
R
D
D
V
5
V1
A
NL
D
D
V
5
V1
A
N
A
GI
D
D
D
V
5
V1
XT
D
D
V
1
C
N
2
C
N
3
C
N
4
C
N
RXINH
TXHSMODE
RXINHX
TXGC
RXINM
TXEN
RXINMX
LD
RXINL
MASTERON
RXINLX
FSYSIN_3G
TXOUTH
ENPGC
TXOUTHX
DAPGC
TXOUTM
CLKPGC
TXOUTMX
EN
TXOUTL
DA
TXOUTLX
CLK
RXI
RXIX
RXBAND1
RXQ
RXBAND2
RXQX
RXBAND3
TXI
TXBAND1
TXIX
TXBAND2
TXQ
TXBAND3
TXQX
I
FSYSOUT1
IX
FSYSOUT2
Q
FSYSOUT3
QX
RX1
FSYSIN_PM
RX1X
EN_PM
RX2
DA_PM
RX2X
CLK_PM
RX3
FE1
RX3X
FE2
RX4
RX4X
VBIAS
TX1
VCO_RC
TX2
1
D
N
G
2
D
N
G
3
D
N
G
4
D
N
G
5
D
N
G
6
D
N
G
7
D
N
G
8
D
N
G
9
D
N
G
01
D
N
G
11
D
N
G
21
D
N
G
31
D
N
G
41
D
N
G
51
D
N
G
61
D
N
G
71
D
N
G
81
D
N
G
91
D
N
G
02
D
N
G
12
D
N
G
22
D
N
G
32
D
N
G
42
D
N
G
52
D
N
G
62
D
N
G
72
D
N
G
82
D
N
G
92
D
N
G
C547
1n
TJ
12
1-
50
01
M1
-
B
H
02
1
FB502
1n
C537
0.1u
C555
1u
C556
ANTENNA_PAD
GND501
C546
47p
TQM7M5005
U501
15
7
8
6
11
14
5
9
4
13
3
10
2
12
1
DCS_PCS_IN
DCS_PCS_OUT
MODE_SELECT
GSM850_900_OUT
BS
BY_CAP1
VBATT
BY_CAP2
VRAMP
GND1
GND2
TX_EN
GND3
GSM850_900_IN
PGND
2V85_VRF
2V85_VRF
C591
1.5p
L524
5.6n
2V85_VRF
2V85_VRF
C523
0.1u
0.1u
C500
NL17SZ32XV5T2
U500
4
3
2
5
1
A
VCC
B
GND
Y
0.1u
C532
C560
22p
U506
BGA735
9
8
7
6
5
01
4
11
3
21
2
31
1
14
15
16
17
PGND
RFOUTM
RFOUTH
RFOUTL
C
N
F
E
R
R
S
G
V
1
N
E
V
C
C
V
2
N
E
V
1
H
D
N
GF
R
L
NI
F
R
2
H
D
N
GF
R
RFINM
RFINH
RFGNDM1
RFGNDM2
10n
C599
C544
18p
1.5p
C588
4.7p
C595
47p
C543
DNI
C549
8.2p
C585
R516
DNI
33n
C548
2.2p
C524
47n
L520
R520
0
1.5p
C536
5.1n
L504
R522
33K
C598
DNI
2.2p
C535
L500
18n
C593
2.2p
DNI
R521
0.1u
C508
10n
C510
C590
DNI
2.4n
L523
0.75p
C512
2.2u
C562
C575
100p
C525
2.2p
3.3p
C506
3.3p
C572
FL506
SAFEB942MFL0F00
45
1
32
G1 O1
IN
G2 O2
10n
C504
0.1u
C505
1n
C574
10n
C577
R502
10
10n
C507
DNI
C573
3.3p
C518
70
5
R
02
8
C563
47p
SAFEB1G95FL0F00
FL501
5
2
4
1
3
IN1
OUT
IN2
G1
G2
1n
C540
20
R505
1.5n
L509
DNI
C570
10n
C554
10K
R506
C567
56p
22n
L515
FL500
D5017
6
5
4
3
7
11
9
22
21
20
13
24
12
23
10
15
8
14
1
17
16
2
19
18
PCS_RX1
PCS_RX2
ANT
PCN_RX1
PCN_RX2
GND1
EGSM_RX1
GND2
EGSM_RX2
GND3
GND4
GSM850_RX1
GND5
GSM850_RX2
WCDMA_2100
WCDMA_850
WCDMA_1900
PCN_PCS_TX
GSM850_EGSM_TX
D
D
V
1L
RT
C
2L
RT
C
3L
RT
C
4L
RT
C
L529
4.7n
C583
DNI
L526
3.3n
4.7n
L507
L518
1.8n
2.2n
L508
DNI
C558
0
31
5
R
I
N
D
51
5
R
0
R518
DNI
R517
C581
0.1u
22n
L522
3.9p
C592
12n
L527
0.1u
C568
10n
C521
SAFEB2G14FA0F00
FL505
45
1
32
G1 O1
IN
G2 O2
C584
0.1u
DNI
R519
3.3n
L525
0
80
5
R
0
90
5
R
15n
L528
C596
2.2p
DNI
C589
C586
47p
26MHz
DSA321SA_26MHZ
X500
2
1
3
4
VDD
OUT
VCONT
GND
C526
0.1u
8.2p
C587
C529
0.1u
R503
4.7
C561
2.2n
C576
10n
DNI
C597
C594
47p
C565
DNI
L512
2.2n
L516
1.8n
C566
DNI
0.1u
C522
10n
C516
C515
0.1u
L501
270n
68p
C571
22n
L510
C578
1.8n
1.8n
L521
C580
DNI
0
21
5
R
I
N
D
41
5
R
4p
C582
L519
22n
C569
4p
L514
4.3n
L513
1.5n
C528
100p
C530
1u
C527
10n
R500
22K
10K
TH501
NCP15XH103J03RC
I
N
D
11
5
R
I
N
D
01
5
R
PM_VCXO_EN
3G_EN
3G_CLK
3G_DATA
3G_LD
ANT_SEL6
ANT_SEL5
ANT_SEL4
3G_PA_MODE1
3G_MASTERON
3G_RX_IN
3G_RX_QN
3G_RX_IP
3G_RX_QP
3G_TX_IN
3G_TX_QN
3G_TX_IP
3G_TX_QP
3G_VGC_TX
2G_IP
2G_IN
2G_QP
2G_QN
26MHZ
RF_TEMP
PA_LEVEL
2G_CLK
2G_DATA
2G_EN
TXON_PA
ANT_SEL1
PA_MODE
ANT_SEL2
ANT_SEL3
AFC
2G_BS
2G_BS
In case of KM555e, The Components in this area must not be assembled.
UMTS2100
UMTS1900
CTRL1
1
0
CTRL3
CTRL4
ANT_SEL1
1
0
1
1
Switch Mode
GSM850/EGSM TX
ANT_SEL4
ANT_SEL3
CTRL3
BC8 : LT56B [SDMY0002001]->EPCOS
1
UMTS850
GSM850 RX
EGSM RX
0
0
0
DCS RX
PCS RX
1
0
0
0
0
0
0
1
1
ANT_SEL5
1
1
1
0
1
0
0
1
1
0
EGSM
PCS
1
0
0
1
0
CTRL2
GSM850
(1%)
CTRL2
WCDMA_900
BC5 : SAFEB836MFL0F00
BC8 : SAFEA897MFL0F00
BC1 : SAFEB1G95FL0F00
BC2 : SAFEA1G88FL0F00
BC2 : SAFEB1G96FN0F00
0
1
1
0
1
DCS/PCS TX
0
0
0
0
m
m0
71
:
ht
gn
eL
eni
L
Place near to each port
Place near to each port
1
0
1
BC2 : ACMD-7407 [SDPY0004701] ->AVAGO
1
0
0
(1800ohm)
Band 1 / 2 Change
eg
na
h
C
2 /
1
d
na
B
0
0
WCDMA_2100
WCDMA_1900
0
WCDMA_1900
DCS
WCDMA_1900
WCDMA_900
WCDMA_850
1
1
1
WCDMA_900
WCDMA_850
WCDMA_2100
0
BC5 : SAFEB881MFL0F55
BC8 : SAFEB942MFL0F00
BC5 : LT69D [SDDY0004901] ->EPCOS
WCDMA_2100
AWT6321 : BAND2/5
AWT6224 : BAND1/8
AWT6222 : BAND1/5
1
BC1 : SAYFP1G95AA0B00 [SDMY0001901]->MURATA
Band 1 / 2 Change
Band 1 / 2 Change
EXSK0005601
BC1 : SAFEB2G14FA0F00
(120ohm)
(1800ohm)
0
0
0
WCDMA_850
WCDMA_1900
WCDMA_900
WCDMA_850
WCDMA_2100