Block Diagrams - Samsung SGH-E100 Service Manual

5. SGH-E100 Block Diagrams
1. RF Solution Block Diagram
HITACHI METAL ANT SWITCH
SHS-M090TC (SIZE)
Imax = 10 mA
Freq (MHz) Loss
880 - 915 1.2 dB
925 - 960 0.9 dB
1710 -1785 1.2 dB
1805 -1880 1.2 dB
Atten 2xfo : 40dB,27dB(GSM,DCS)
3xfo : 35dB,21dB(GSM,DCS)
Vc_EGSM Vc_DCS
EGSM_MODE_SW
Inverter circuits
DCS_MODE_SW
VCC_RX_TX
RFMD PAM
RF3140
GSM: Pout = 35.0 dBm E = 60%
ff
DCS: Pout = 33.0 dBm E = 55%
ff
MURATA EGSM RX SAW Filter
SAFSD942MFM0T00R00
IL=3.2dB max
Ripple=2.2 dB max
MURATA DCS RX SAW Filter
SAFSD1G84FA0T00R00
IL= 3.0dB max
Ripple= 2.0dB max
Vcc_RF_LO
Vcc_RF_VCO
Discrete
rd
3 Order
Loop Filter
OFFSET Mixer input power
-16dBm max, -22dBm min
pi -PAD
Vcc_Tx_BURST
VBAT
Discrete
3 rd Order
Loop Filter
GSM IN
~
pi -PAD
VRAMP
~
GSM S/W
TX ENABLE
DCS S/W
BAND SELECT
SAMSUNG ELECTRO-MECHANICS
DCS IN
TX VCO
pi -PAD
VOU1810F27KRA (8.0 6.0
X X
GSM = 824 ~ 915 MHz
(Vt=0.5V ~ 3.0 V )
DCS = 1710 ~ 1910 MHz
(Vt=0.5V ~ 3.0 V )
Pout= 6.5 3dBm typ.,Ic <= 30mA
Harmonics <= -10dBc
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QUAD
VREG DIV
~
GSM/DCS/PCS
CP
FESW1
FESW2
CP
PFD
Philips Transceiver
UAA3536
1.6 mm)
VCC_SYN (2.7V , 100mA )
RF1_VDD
VCC_RX_TX (2.7V ,100mA )
RF2_VDD
VCC_RF_VCO (2.70V , 100mA )
RF1_VDDS
VCC_TX_BURST(2.7V , 100mA )
RF2_VDDS
VCC_CP (4.0V , 25mA )
HVS
5-1
VREG
FracN
DIV
f =26MHz
compRF
PFD
I+
DIV
1:1/2
QUAD
fmod
I-
3W
f
TXIF
BUS
60/114MHz
Q+
CTL
REG
Q-
PWR
EN
VBat (3.6V typ 3.0V min)
PON_TX
PON_SYNT
PMU
V_MODE
AVDD(1.35V min 2.65V max , 100mA )
VDD1 (1.35V min 2.95V max , 150mA )
VDD2 (1.35V min 3.45V max , 150mA )
VDD3 (1.35V min 3.45V max , 100mA )
VDD4 (1.35V min 3.45V max , 150mA )
Pins IA,IB,QA and QB
V : 1.25V . , 1.15V , 1.35V
IQ typ min max
V : 0.5V
mod pp
+ I OUT
- I OUT
100 kHz+fmod
+ Q OUT
- Q OUT
Vcc_SYN
Vcc_REF(2.4V typ.)
REFIN
VTCXO
26MHz
REF_13M
DATA
CLK
EN
RXON
TXON
SYNON
FESWON