Text preview for : 6.pdf part of Motorola A6188 Schematic Diagram Phone Gsm - (Tot File 11) - Part 1/3
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RX SIGNAL PATH TX SIGNAL PATH MAIN VCO SIGNAL PATH TUNING VOLTAGES 13 MHz REFERENCE CLOCK DATA BUS ADDRESS BUS REFERENCE SIGNALS
GSM_LNA275
MIX_275
GSM_LNA
MIXER
GSM_LNA275 FL460 Q461 MIX_275 FL470
DCS_SEL GSM_LNA275 MIX_275 Q342 DCS_LNA275 GSM_SEL
NPA_MUTE TX_EN
RF_V2
PAC_275 GSM_PINDIODE
ISO_AMP
RVCO_250 DCS_VCO GSM_SEL DCS_SEL Q321
Q320
Q322
Q1254
FL457
Q345 Q490 -5V Q340
DCS_LNA275 DCS_LNA275 MIX_275
RF_V2
MIX_275
DCS_LNA
SF_OUT RF_V2 RVCO_250 RX_EN TVCO_250 Q343
Q1254 SF_OUT FL465 FL450 Q451 Q1255 Q344 V1_FILT V1_SW Q346
TX_EN
RX VCO
V1 Q262 GPO5 GPO4 RF_V1 A1 RF_V2 BFSR BDR RX_ACQ
TX_EN
RF SWITCH
RVCO_250
BCLKR
TP904
V1
RF_V1
PAC_275 GSM_LNA275
MIX_275 SF_OUT RVCO_250 RF_V2 MAGIC 13Mhz BCLKX CLK_SELECT Q101 Q102 Q255 GP03 DCS_SEL RF_V2 TX_KEY DM_CS MQSPI_CS1 MQSPI_CLK1 DX1 BDX GSM_SEL
DCS_LNA275 U101
RF_V1
SW_RF Q253 -5V_SW Q105 Q104 MIX_275 Q105 Q104 PAC_275 DCS_VCO CR250 CR251 V1_FILT RF_V2 Q106
IN
Q240 SF_OUT RF_V2 VREF Q242 V1 VREF RF_V2 -5V -5V Y230 Q421 Q241 B+ B+ B+
-5V
TX_EN TX_EN
TX_KEY_PAC DET_SW SAT_DET
RX_EN RX_EN
B+ PAC_275 Q330 U201 PA B+ VCTRL PAC_275 DM_CS Q331 G_TX_VCO Q331 Q333 D_TX_VCO TVC0-250 GSM_SEL DCS_SEL V1 V1 VREF VREF
TAI CHI - ORGANISER P5.0
TX_VCO
D_TX_VCO
TX EXCITER
PAC_275 Q300 U300 FL300 PA B+ CR300
G_TX_VCO
SF_OUT
U250
PAC_275
yellow V1_FILT V1_FILT
Q455 CR301 U200 Q201
Q400 GSM_PINDIODE PA B+ U400 DCS_PA_B+ D_TX_VCO PAC_275 DM_CS TX_EN
Q202 Q202 B+ B+ SAT_DET DET_SW TX_KEY_PAC NPA_MUTE U341 PA B+
PAC_275 Q303 Q303 Q304 Q302 Q304 -5V_SW Q302 Q301 Q301
VCTRL
U340
GSM_PINDIODE
SAT_DET DET_SW TX_KEY_PAC
REVISIONS
G S M S ervice Support LEVEL 3 RF SCHEMATICS Tai Chi P5 16.11.99 Rev. 1.1 Version P5 Page 3 of 3 Michael Hansen, Ray Collins, Ralf Lorenzen
G_TX_VCO
PA CONTROL