Motorola T720 Instruction Manual page 55

A10
GSM: CH 62 -- 947,4 MHz
N_GSM_EXC_SW TX1 V1 DCS/PCS
EGSM: CH 37 -- 942,4Mhz
TX2
GSM_EXC_SW V2 GSM/850
RX1
N_DCS_SW GSM/PCS
V3
N_DCS_SW
DCS_SW RX2 V4 850/DCS
N_GSM_EXC_SW
J100 1 7 Diplexer
FL130
Mech. Ant Switch V4
V1
2
9 2
GSM/PCS
DCS/PCS
4
16
U100
850/GSM 4
4 12
V2 V3
850/DCS 2
FL140
14
6
Diplexer
GSM_EXC_SW
DCS_SW
R440
TX VCO FRQ. RANGE
EGSM: 880 - 915Mhz
824 - 915MHz
DCS: 1710 - 1785MHz
GSM_PA_OUT
4 PCS: 1850 - 1910MHz
1
3
U420
6
1710 - 1910MHz
DCS_PA_OUT 4
1
3
U430
6
TX_EN
U450
3,14 4 5
1
PAC
RF DET
RF_IN
-
AMP
+ - +
(Gain 1or 3)
INTEGR.
COMP.
-
+
SAT.
DET.
9 8
10 11 7
Logic 1 at low power
Logig 0 at high power
RF_V2
RVCO
(from Magic)
S1,S2
TX_EN
(from Patriot) N_TX_EN
G1 D1
Q700
EXC_EN
N_EXC_EN D2
(from Patriot) G2
(from Magic) N_GSM_SEL
GSM/DCS - 850/PCS SELECT CIRCUIT
RX MID CHANNELS
850: CH190 -- 881,6
DCS: CH 700 -- 1842,8MHz
PCS: CH 661 -- 1960MHz
925-960MHz
12
1805-1880MHz
FL110 4 6
3
6 1 7
GSM GSM 5
1 U110
3 5 18
850
PCS
DCS FL120
3
3
7
DCS
5
6 5 1 U120
1
850
PCS
13
869-894MHz 4 6
1930-1990MHz
U140 20
1805-1990MHz
850: 824 - 850Mhz
N_GSM_SEL
PA_B+
3,6
U400
4 11,16
PA
GSM_PA_OUT
9
GSM_TX / GSM_TX_OUT
5
DCS_PA_OUT 13
1 DCS_TX / DCS_TX_OUT
3
TX VCO FRQ. RANGE
850: 824 - 850Mhz
EGSM: 880 - 915Mhz
DCS: 1710 - 1785MHz
6
VAPC
PCS: 1850 - 1910MHz
TX VCO MID CHANNELS
850: CH 190 - 836,6
GSM: CH 62 - 902,4MHz
EGSM: CH 37 - 897,4Mhz
DCS: CH 700 - 1747,8MHz
PCS: CH 661 - 1880 MHz
AOC_DRIVE / POWER_CONTROL
SATURATION_DETECT
POWER_DETECTOR_SW
TX_KEY_PAC
RF_V2
5
2 4 VCO_EN
N_DCS_SEL
U710
RX_EN
1
DCS_SEL
RX_EN
TX_EN
U503
S1,S2
1
GSM_EXCEITER_EN 2
G1 D1
Q701
DCS_EXCEITER_ENABLE
G2 D2
OSCILLATOR
9
2,5,6 24 16 10
4
400 MHz
1
5
2
FL170
3
23 7
RX VCO MID CHANNELS
FL160
2,75V
850: CH 190-- 1281,6 MHz
900: CH 62 -- 1347,4 MHz
EGSM: CH 37 -- 1342,4Mhz
DCS: CH 700 -- 1442,8MHz
PCS: CH 661 -- 1560MHz
2,75V
RX VCO FRQ. RANGE
850: -- 1269 - 1294 MHz
EGSM: 1325 - 1360Mhz
DCS: 1405 - 1480MHz
PCS: 1530 - 1590MHz
SF_OUT ( SUPERFILTER_OUT)
FEEDBACK / PRESCALER_IN
RX_TUNE_LINE
TX_TUNE_LINE
11 12
14
U300
HIGH_FREQUENCY_MODULATION
6
16
13 GSM_EXC_EN
1 DCS_EXC_EN
RX / TX N_GSM_SEL
2
VCO_EN
3
VCO
TX_EN
4
4
3
U502 DCS_SEL
5
U500
1
7
N_DCS_SW
2
5
3
DCS_SW
6
BLOCK DIAGRAM
4
GSM_EXC_SW
PAGE 1/2
U501
1
4
N_GSM_EXC_SW
2
RF_V2 5V
A9 A8
3 1
800MHz
RX
U203
E9
4
CP
LOCAL
Osc.
PLL
2
1
C8
RF_V1
400MHz
1
A7
STEP
4
U170
DEMODULATION
ATT.
3
SW_VCC
C7
C6
D1 F1
RF_V2 G1
B+
S1
Q240 H1
B+
S2
D2 G2
RF_V1 H2
G1
VRef
H7, C8, J1
C1
A3
DIVIDER Prog.
PHASE-
Divider
A1
DET.
200KHz
1,5V - 3,2V B1 AFC
CP
REF.
5V
C2
PLL
F9
LOGIC
RVCO
C4
N_DCS_SEL
A4 CONTROL
N_GSM_SEL
B5
0
850 0
GSM 1
0
DCS 1 0
PCS 1 1
HPF MODULATION
AOC_DRIVE B6
B4
SATURATION_DETECT
PA
A5
CONTROL
POWER_DETECTOR_SWITCH
GPRS_TX
C5
TX_KEY_PAC
U201
MAGIC
GPRS_TX
RX_SERIAL_CLOCK
F7
RX
RX_SERIAL_FRAME_SYNC
RXI
G9 to Patriot
SPI
RX_SERIAL_DATA
RXQ
G8
8 Bits GPRS_TX - LOW
10 Bits GPRS_TX - HIGH
R200
5V
33
J7 4
PHASE
U202
DET/ CP
Divider 13MHz
200KHz
VCO
H9
6
13MHz
13MHz _CLOCK_OUT
J6
to Patriot
MUX
G6 CLK_SELCT
from Patriot
Startup
Ref.
1 /2
E1
REF. OSC.
26MHz
Y250
26 MHz
MAGIC_SPI_CS
G5
SPI
MAGIC_SPI_CLK
H4
INTER
MAGIC_SPI_DATA
J3
FACE
from Patriot
TX_SERIAL_DATA
J2
TX
TXI
TX_CLOCK
SPI
TXQ
G7
RX_ACQIRE
H8
DM_CS
LOGIC
J4 from Patriot
TX_KEY
CONTROL
H5
RX SIGNAL PATH
TX SIGNAL PATH REFERENCE CLOCK
Orderable Part
MAIN VCO SIGNAL PATH
TUNING VOLTAGES Non - Orderable Part