Motorola MOTOTRBO XPR 7550e - Figure 8-20. Transmitter Schematic Diagram

8-22 Circuit Board/Schematic Diagrams and Parts List for 800/900 MHz
DC_RAWB+
IN
U0900
C0911
C0910
R0909
R0910
C0902
E0900
R0908
48
1
3
2
1
R0918
R0907
C0900
R0911
C0901
C0905
C0904
R0913R0912
R0906
R0905
21
Q0900
C0903
DIG_TX_PWCTRL_EN
1
4
6
3
2
5
10K
10K
10K
10K
IN
U0901
2
13
VOUT
GND
POS
DNP
R0921
R0920
C0909
ANA_TX_ALC_TEMP
OUT
TP_TX_VCTRL
R0922
C0908
R0916
L0900
TX_VCTRL
1
U0900
VDET_PIN1
C0907
R0915
48
7
5
6
C0912
R0901
R0902
C0906
ANA_TX_RAMP
IN
HARMONIC FILTER AND ANTENNA SWITCH
POWER CONTROL
C0821
C0823
E0801
C0813 C0810
TL_TXRX_IN_800_SHIELD
TL_TXRX_IN_900_SHIELD
DC_LIN_VWLAN2_3.3V
IN
OUT
OUT
U0800
6
5
4
11
3
9
1
12 10
8 7 2
G1
J3
V2
V1
RFC
GND1
GND4
GND3 GND2
J1
VDD
CTGND
GND5
J2
VR0801
TL_HF_OUT_TO_ANT_50OHM
12
C0819
C0820
HF_LOGIC_V1
HF_LOGIC_V2
R0814
R0813
U0902
U0902
C0814
C0815
7
2
1
3
5
6
IN
IN
C0844
SH0802
L0805
U0902
C0818
E0800
C0817
E0802
C0816
TL_SWITCH_TO_ANT_50OHM
DC_SW3_1.8V
2
1
84
4
3
2
1
IN
GND
VCC
TAB1
TAB4
TAB3
TAB2
M0800
2
1
4
3
IN
GND1 GND2
OUT
SH0801
DIG_TX_ANT_EN
2
1
M0701
DIG_VCO_900_EN1
DIG_VCO_800_EN1
1
POS
C0807
L0803
L0802
C0806C0805
C0804
C0802
L0801
C0803C0801
DNP
L0707
Q0710
L0703
C0710
C0711C0709
R0709
C0712
L0704
C0708
R0708
2
1
3
G
S
D
DNP
C0731
R0716
C0732
R0707
TX_VCTRL
DRIVER & FINAL PA
L0701
C0701
L0705
C0738
R0702
R0701
C0700
R0700
TL_TX_INJ_SHIELD
IN
DNP
C0756
C0703
C0736
C0735
R0703
C0704
L0702
U0700
4
63
1
5 2
RFIN
VBIAS
GND
GND
NC
RFOUT
DNP
DNP
DNP
DNP
DNP
C0714
C0739
C0742
C0741
C0740
C0719
C0720
R0714
Q0720
C0716
C0715
C0713
3
2
1
S
D
DNP
DNP
C3
R0710
R0711
R0712
C0718
TX_PA_VCTRL
HQ
HQ
HQHQ
HQ HQ
HQ HQ
HQ
HQ
HQ
DNP
DNP
DNP
C0755
C0734C0733 C0723
C0730
C0724 C0726
C0727
C0725C0722C0721
L0721
C0753
C0743
L0710
C0751C0746
DC_RAWB+_TX2
DNP DNP
L0720
C0750
C0749
C0754
C0745
C0744
E0701
L0730
C0748
C0747
R0704
DC_LIN_VWLAN2_3.3V
IN
Q0701
C0702
C0707
2
1
3
S
D
G
Q0700
TP_TX_ANT_EN
C0706 C0705
DIG_TX_ANT_EN
3
1
2
1
10K
47K
IN
Figure 8-20. Transmitter Schematic Diagram