Only For Training And Service Purposes - LG KS660 Service Manual

3. TECHNICAL BRIEF
< Fig 27. RF transceiver PMB6272 SMARTi-PM functional block diagram >
L B A N D _ P A M _ N I
H B A N D _ P A M _ N I
LGE Internal Use Only
G S M 8 5 0
2 V 8 5 _ V R F 2 V 8 5 _ V R F
1 V 5 _ V R F
C 4 1 2 C 4 1 3
4 7 . p 4 7 . p
C 4 2 2 C 4 2 3
0 1 . u 4 7 . n
L 4 0 3
1 5 n H
F E
3 3
V B
3 4
V D
3 5
T X
3 6
T X
3 7
V D
3 8
V D
3 9
R 4 0 8
C 4 3 7 G N
4 0
1 0
0 2 . 2 u
G N
4 1
1 V 5 _ V R F
2 V 8 5 _ V R F
R 4 0 9
1 0
C 4 3 8 C 4 3 9
2 2 0 n 0 1 . u
< Fig 28. RF transceiver PMB6272 SMARTi-PM schematic >
G S M 9 0 0 D C S 1 8 0 0 P C S 1 9 0 0
C 4 1 4
C 4 1 5 C 4 1 6 C 4 1 7 C 4 1 8 C 4 1 9
4 7 . p
4 7 . p 2 2 . p 2 2 . p 1 8 . p 1 8 . p
L 4 0 5
L 4 0 4
L 4 0 6
1 8 n H 5 1 . n H
4 7 . n H
1 V 5 _ V R F
C 4 3 1
0 1 . u
2
A I S
D T X 1 V 5 V D D R X 2 V 8
C 4 3 5
2 0
1 V D D R X 1 V 5
U 4 0 2
1 9 R 4 0 7 4 7 n
2 V C O _ R C
P M B 6 2 7 2
1 8 8 2 0
D T X 2 V 8 V D D V C O 2 V 8
1 7
D M X I 2 V 8 E N
1 6
D 3 V D D X O 2 V 8
1 5
F S Y S 1
1 4
D 4 G N D 1
1 3
X 4 0 0 N X 3 2 2 5 S
4
3
G N D 2 H O T 2
1 2
O T 1 G N D 1
H
2 6 M H z
- 52 - Copyright © 2008 LG Electronics. Inc. All right reserved.
L 4 0 2
5 6 . n H
C 4 1 0 C 4 1 1
D I N 1 5 . p
2 V 8 5 _ V R F 2 V 8 5 _ V R F
C 4 3 2 C 4 3 3
0 1 . u 0 1 . u
C 4 3 4
0 1 . u
A
I S M 1 _ B T _ C L K
2 6 M _ O U T _ T E S T
R F _ C L K
R F _ D A
Q X
Q
X I
I

Only for training and service purposes