Block Diagram; Gsm & Wcdma Rf Block - LG U8120 Service Manual

5. BLOCK DIAGRAM

5. BLOCK DIAGRAM
5.1 GSM & WCDMA RF Block
Du plex er Du plex er
N1002 N1002
An tenna An tenna
C2- 6122 C2- 6122
Is olator Is olator
T es t Conn. T es t Conn.
N1650 N1650
W1001 W1001
Switc h Switc h
N1000 N1000
GSM PAM GSM PAM
N1300 N1300
UMTS UMTS
UMT S RF Filter UMT S RF Filter
Z1400 Z1400
V CO V CO
UMTS PAM UMTS PAM
N1630 N1630 UMTS TX Filter UMTS TX Filter
Z1500 Z1500
DC DC DC DC
N1620 N1620
GSM GSM
DCS Rx Filter DCS Rx Filter
Z 1100 Z 1100
GSM RX Filter GSM RX Filter
Z 1110 Z 1110
DCS Balun DCS Balun
N1331 N1331
GSM Balun GSM Balun
N1330 N1330
Figure 5-1. RF Block Diagram
UMT S IF Filter UMT S IF Filter
Z1420 Z1420
UMT S Receiver UMT S Receiver
N1400( Wopy ) N1400( Wopy )
V CO V CO
T ank T ank
UMT S T ransm itter UMT S T ransm itter
N1700( Wivi) N1700( Wivi)
÷
÷
÷
÷
GSM T rans ceiver GSM T rans ceiver
N 1100( Ingela) N 1100( Ingela)
Loop Loop
fi l ter fi l ter
- 180 -
XO XO
D2006 D2006
Wan da Wan da
V arac tor V arac tor
Crys tal - 13M Crys tal - 13M
V 1770 V 1770
B 1770 B 1770
ADC ADC
ADC ADC
GSM ADC GSM ADC
N1101 N1101
Clk Clk
M arita M arita
D2000 D2000
PD PD
Pre - Pre -
sc aler sc aler