Rf Solution Block Diagram; Block Diagrams - Samsung SGH-P200 Service Manual

7. Block Diagrams

7-1. RF Solution Block Diagram

MURATA SWITCHPLEXER
LMSP54HA-350
Imax = 10 mA
Freq (MHz )
GSM TX 880 - 915
DCS/PCS TX 1710 - 1910
GSM RX 925 - 960
DCS RX 1805 - 1880
PCS RX 1930 - 1990
LPF
SAW
Dip
LPF
SAW
SAW
FESW1
FESW2
FESW3
Power
Control
PHILIPS
BGY290E
FUJITSU EGSM TX SAW Filter
FAR-F5EA-897M50-D27CH
IL=2.5dB max
Ripple= 1.5dB max
Band Select
TX_EN
VBATT
VRAMP
Logic
Mode Select
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LBIA
LBIB
SWBIA
QUAD
SWBIB
HBIA
HBIB
VCCRFLO
DIV
VREG
~
RFTUNE FracN
DIV
CP vcccp PFD
DIV
QUAD
GSM_TX
BALUN
DCS_TX
BALUN
Philips Transceiver
UAA3587EHN/C2
(3V max ,100mA )
VCC_SYN
RF1_VDD
VDD_RX_TX (3V max ,100mA )
RF2_VDD
PMU
VDD_IO_LOW (3.2V max , 150mA )
IOVDD
VDD3 (1.25V min 3.25V max , 150mA )
7-1
Pins IA,IB,QA and QB
V I : 1.25V
Q
V : 0.5V
mod
IA
IB
QA
QB
VCCSYN
VREG
VCCREF (2.4 typ.)
REFIN
DIV
REF_26M
1/2
FESW1
FRONT
END FESW2
SWITCHES
FESW3
POWER EN
3WB
VDDL
VBAT (5.7V max 0V min)
AVDD_HFA (2.6V min 3.2V max , 250mA )
AVDD (1.2V min 3.2V max , 100mA )
VDD1 (1.2V min 3.2V max , 150mA )
VDD2 (1.2V min 3.2V max , 100mA )
ty
p
p
p
RX_TX_IP
RX_TX_IN
RX_TX_QP
RX_TX_QN
VTCXO
26MHz
PON_3587_SYNTH