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GSM_LNA275
MIX_275
DCS_SEL MIX_275 GSM_LNA275 MIX_275 GSM_SEL
GSM_LNA275
TX_EN NPA_MUTE RF_V2 PAC_275 GSM_PINDIODE
Q342
DCS_LNA275
945MHz
FL460
942,5MHz
FL470
Q320
GSM_SEL RVCO_250 DCS_VCO DCS_SEL
Q461 Q321 Q322
Q1254
400MHz
FL457
Q345 Q490
-5V MIX_275 RF_V2
Q340
DCS_LNA275 DCS_LNA275 MIX_275
RX_EN RF_V2 SF_OUT RVCO_250
TVCO_250
Q343
Q1254
Q344
TX_EN SF_OUT
FL450
1805-1880MHz
1842,5MHz
FL465
V1_FILT V1_SW
Q346
Q451
Q1255
TX_EN
CR259
RF_V2
RVCO_250
BCLKR BFSR BDR RX_ACQ
A1
CR230
V1
RF_V1
Q262
GP04 GP05
V1
RF_V1
GSM_LNA275
PAC_275
MIX_275 SF_OUT RVCO_250 RF_V2
DCS_LNA275
U913 MAGIC
MAGIC_13MHz BCLKX CLK_SELECT GSM_SEL
U101
Q101
Q102
Q255
DCS_SEL
RF_V2
TX_KEY DM_CS MQSPI_CS1 MQSPI_CLK1 DX1 BDX
RF_V1
SW_RF
Q253
-5V_SW
Q240
SF_OUT RF_V2 Vref B+
Q105 Q104
MIX_275 PAC_275 RF_V2 DCS_VCO -5V
Q242
V1 Vref RF_V2
Q104 CR251
CR250
V1_FILT
26MHz
Y230
Q105 Q106
TX_KEY_PAC DET_SW SAT_DET
Q251 Q251
DualBand DAO (V8088)_8486183p01
PAC_275
PA_B+
B+
Q330 U201
VCTRL PAC_275 DM_CS D_TX_VCO GSM_SEL G_TX_VCO TVCO_250 DCS_SEL
Q331
Q331
Q333
D_TX_VCO G_TX_VCO
SF_OUT
PAC_275 1747,5MHz
U250
Q300 U300 FL300
900/1800MHZ PA_B+
CR300
V1_FILT
Q455 CR301 Q400
PA_B+
V1_FILT
PAC_275
U200
GSM_PINDIODE
Q201 U400
DCS_PA_B+ PAC_275 TX_EN DM_CS TEXT
RX SIGNAL PATH TX SIGNAL PATH MAIN VCO SIGNAL PATH TUNING VOLTAGES 13 MHz REFERENCE CLOCK DATA BUS ADDRESS BUS REFERENCE SIGNALS
CR306
PAC_275 D_TX_VCO VCTRL
Q202 U340 Q202
SAT_DET DET_SW TX_KEY_PAC NPA_MUTE SAT_DET DET_SW TX_KEY_PAC
GSM_PINDIODE
Q303 Q303 Q304 Q302 Q304
-5V_SW
Q301 Q302 Q301 U341
PA_B+
CR307
REVISIONS
GSM SERVICE SUPPORT GROUP Level 3 Schematics Dualband DAO (V8088) Michael Hansen, Ralf Lorenzen, Ray Collins 17.02.00 Rev. 1.0 8486183p01 Page 1
G_TX_VCO