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A1
RX MID CHANNELS
GSM: CH 62 -- 947,4 MHz
EGSM: CH 37 -- 942,4Mhz
DCS: CH 700 -- 1842,8MHz
PCS: CH 661 -- 1960MHz
-2,5dB
FL400
925-960MHz
7
4
6
U150
5
10
-0,6dB
RVCO_PCS
-2,5dB
3
EXT ANT
1930-1990MHz
2
SW_RF
V1
V2
from J600
6
9
2
FL2400
1
Pin2
5
7
3
V1
V2
FL1400
U401
U151
SWITCH
1805-1880MHz
CONTROL
-2,5dB
2
RVCO_DCS
1
4
3
6
B+
1-3
Q380
TX FRQ. RANGE
EGSM: 880-915Mhz
5-8
-0,2dB
DCS: 1710-1785MHz
PA_B+
PCS:1850-1910MHz
U300
11-14
TX_275
FILTERED_-5V
GATE CTRL CIRCUIT
EXC
U390 PAC
RF_IN
DET
2
TX_275
SAT.
4, 14
10
12
RX275_DCS
RX_GSM_PCS
RVCO_PCS
RVCO_DCS
RX275_GSM
RX275_DPCS
GSM / DPCS SELECT CIRCUIT
TX_275
TX275_GSM
TX275_DPCS
For description of GSM / DPCS Select Circuit
TX_DCS
see document on: emeacs.fle.css.mot.com
FILTERED_-5V
RF_V2
GSM LNA
-3,5dB
+13 dB
3
C
Q112
Q400
FL401
2
+10dB
B
925-960MHz
RX275
C
Q450
B
RX275_GSM
E
+10dB
RX275_DPCS
C
Q450
B
+12dB
-2dB
E
5
B
U400
Q1400
FL1401
C
4
1805-1990MHz
DCS_PCS LNA
RX VCO MID CHANNELS
GSM: CH 62 -- 1347,4 MHz
EGSM: CH 37 -- 1342,4Mhz
DCS: CH 700 -- 1442,8MHz
PCS: CH 661 -- 1560MHz
RX VCO FRQ. RANGE
EGSM: 1325 - 1360Mhz
DCS: 1405 - 1480MHz
4
DM_CS
PCS: 1530 - 1590MHz
+21dB
+6bB
4,10-15
+11,5dB
-5dB
CR330
-2 dB
7
C
C
B
B
R336
R333
PA
Q331
Q330
2, 8
DM_CS
+6-8dBm
7
TX VCO FRQ. RANGE
EGSM: 880-915Mhz
DCS: 1710-1785MHz
1, 3
PCS:1850-1910MHz
TX VCO MID CHANNELS
GSM: CH 62 -- 902,4MHz
EGSM: CH 37 -- 897,4Mhz
8
11
DCS: CH 700 -- 1747,8MHz
PCS: CH 661 -- 1880MHz
DETECT_SW
AOC_DRIVE
SAT_DETECT
TX_KEY_OUT
GSM SERVICE SUPPORT GROUP
LEVEL 3 AL Block Diagram
Tri Band GPRS Leap
Michael Hansen, Ray Collins, Ralf Lorenzen,
RX
Osc.
LOCAL
discrete
OSCILLATOR
circuty
Q203
RX_EN
4
CR249
+12dB
-5dB
B
Q480
FL457
400 MHz
2,75V
RF_V2
B+
2,75V
RF_V1
RVCO_DCS
RVCO_PCS
1,5V - 3,2V
3
4
5
RVCO_275
U250
0db
1
Q1102
RX VCO
6
SF_OUT
6
1,5V - 3,2V
U350
4
TX LOOP
FILTER
TX VCO
2
5
3
*GSM_SEL
TX275_GSM
2
TX275_DPCS
4
TX_DCS
*PCS_SEL
Q100
*DCS_SEL
DETECT_SW
AOC_DRIVE
SAT_DETECT
18.07.00
Rev. 1.0
Page 1
A9
800MHz
D9
PLL
U200
MAGIC
C8
RF_V1
GPRS_TX
F7
C
RX
A7
RXI
STEP
G9
DEMODULATION
ATT.
SPI
RXQ
C
G8
SW_VCC
C7
F2
D
G
G1
F1
Q242
S
H1
PHASE
S
DET
J7
Divider
Q240
H2
200KHz
D
G
H9, J9
13MHz
H7, C8,
J6
J1, B3
MUX
G6
C1
Startup
SF_OUT
Ref.
1 /2
A1
PHASE
Prog.
E1
B1
Divider
DET
REF. OSC.
200KHz
A3
26 MHz
AFC
Divider
REF.
E2
PLL
SW_V1
J8
G5
SPI
GP04
F4
LOGIC
C4
H4
INTER
A4
CONTROL
J3
FACE
RF_V2
TX
J2
TXI
MODULATION
TXQ
SPI
G7
1
3
A5
H8
B6
LOGIC
J4
PA
CONTROL
CONTROL
H5
B4
GPRS_TX
TX_KEY_OUT
C5
RX SIGNAL PATH
TX SIGNAL PATH
MAIN VCO SIGNAL PATH
TUNING VOLTAGES
( SCLK_OUT ) BCLKR
( SDFS ) BFSR
to WhiteCap
( SDRX ) BDR
8 Bits GPRS_TX - LOW
10 Bits GPRS_TX - HIGH
VRef
13MHz VCO
CR248
MAGIC_13MHz
to WhiteCap
CLK_SELCT
from WhiteCap
Y200
26MHz
( CE ) MQSPI_CS1
( SPI_CLK ) MOSPI_CLK1
( SPI_DATA ) DX1
from WhiteCap
( SDTX ) BDX
( TX_CLK ) BCLKX
RX_ACQ
DM_CS
from WhiteCap
TX_KEY
REFERENCE CLOCK
Orderable Part
Non - Orderable Part
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