LG KU580 Service Manual - Page 66
RF Technical Description
 |
View all LG KU580 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 66 highlights
3. Technical Brief 3.7 RF Technical Description 3.7.1 General Description The RF platform of KU580 supports two different communication modes (WCDMA/GSM modes) including four communication bands (WCDMA2100/GSM900/GSM1800/GSM1900). The all the RF blocks can be divided into three main parts, which are a WCDMA part, a GSM, and a RF front-end. Different from other general solutions, the RF front-end of KU580 consists of an antenna switch and an EDGE power amplifier module (PAM). The simplified block diagram is shown in Figure 3-7-1. Figure 3-7-1. Block diagram of RF part Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 67 - LGE Internal Use Only
-
1 -
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30
-
31
-
32
-
33
-
34
-
35
-
36
-
37
-
38
-
39
-
40
-
41
-
42
-
43
-
44
-
45
-
46
-
47
-
48
-
49
-
50
-
51
-
52
-
53
-
54
-
55
-
56
-
57
-
58
-
59
-
60
-
61 -
62 -
63 -
64 -
65 -
66 -
67 -
68 -
69 -
70 -
71 -
72
-
73
-
74
-
75
-
76
-
77
-
78
-
79
-
80
-
81
-
82
-
83
-
84
-
85
-
86
-
87
-
88
-
89
-
90
-
91
-
92
-
93
-
94
-
95
-
96
-
97
-
98
-
99
-
100
-
101
-
102
-
103
-
104
-
105
-
106
-
107
-
108
-
109
-
110
-
111
-
112
-
113
-
114
-
115
-
116
-
117
-
118
-
119
-
120
-
121
-
122
-
123
-
124
-
125
-
126
-
127
-
128
-
129
-
130
-
131
-
132
-
133
-
134
-
135
-
136
-
137
-
138
-
139
-
140
-
141
-
142
-
143
-
144
-
145
-
146
-
147
-
148
-
149
-
150
-
151
-
152
-
153
-
154
-
155
-
156
-
157
-
158
-
159
-
160
-
161
-
162
-
163
-
164
-
165
-
166
-
167
-
168
-
169
-
170
-
171
-
172
-
173
-
174
-
175
-
176
-
177
-
178
-
179
-
180
-
181
-
182
-
183
-
184
-
185
-
186
-
187
-
188
-
189
-
190
-
191
-
192
-
193
-
194
-
195
-
196
-
197
-
198
-
199
-
200
-
201
-
202
-
203
-
204
-
205
-
206
-
207
-
208
-
209
 |
 |
- 67 -
3. Technical Brief
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
3.7 RF Technical Description
3.7.1 General Description
The RF platform of KU580 supports two different communication modes (WCDMA/GSM modes)
including four communication bands (WCDMA2100/GSM900/GSM1800/GSM1900). The all the RF
blocks can be divided into three main parts, which are a WCDMA part, a GSM, and a RF front-end.
Different from other general solutions, the RF front-end of KU580 consists of an antenna switch and an
EDGE power amplifier module (PAM).
The simplified block diagram is shown in Figure 3-7-1.
Figure 3-7-1. Block diagram of RF part